A bag of flour had 5 pounds of flour. Some of the flour was removed and the last quantity was 3 pounds. What was the percent change and was there an increase or decrease?

Answers

Answer 1

There was a decrease of quantity of flour and the percentage change was 40%.

The percentage change will be calculated using the formula -

Percentage change = old Quantity - new quantity/old quantity [tex] \times [/tex] 100

Keeping the values in formula to find the value of percentage change

Percentage change = (5 - 3)/5[tex] \times [/tex] 100

Performing subtraction on Right Hand Side of the equation

Percentage change = 2/5 [tex] \times [/tex]100

Percentage change = 2 × 20

Multiply the values on Right Hand Side of the equation

Percentage change = 40%

Thus, the percentage was 40% with decrease.

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Related Questions

due today Determine the number of solutions that 5x^2 + 3x + 8 has without solving the equation.

Answers

The degree of the equation is 2. Then the number of solutions to the equation will be 2.

Given that:

Equation, 5x² + 3x + 8

The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2.

The degree of the polynomial will be greater than or equal to the number of zeroes.

The degree of the equation is 2. Then the number of solutions to the equation will be 2.

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1/3 to 1/6 identify the percent change

Answers

From the given fractions change in percentage is 50 percent.

The two given fractions are 1/3 and 1/6.

Difference of given fractions = 1/3 - 1/6

= 1/6

The percentage change = Difference of fractions/Original fraction ×100

= 1/6 ÷ 1/3

= 1/6 × 3/1

= 0.5 ×100

= 50%

Therefore, from the given fractions change in percentage is 50 percent.

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use the scalar triple product to determine whether the points a(1, 3, 2), b(2, −3, 8), c(6, 0, 1), and d(5, 6, −5) lie in the same plane.

Answers

Determine whether the scalar triple product of the vectors formed by the points a, b, and c with the vector formed by the point d is equal to zero. If so, the points lie in the same plane; otherwise, they do not.

To determine whether the points a, b, c, and d lie in the same plane, we can use the scalar triple product. The scalar triple product of three vectors is defined as the dot product of one vector with the cross product of the other two vectors.

Let's choose any three of the given points as our vectors. Suppose we take a, b, and c as the three vectors. Then the scalar triple product is:

a · (b x c)

= (1, 3, 2) · [(2, -3, 8) x (6, 0, 1)]

= (1, 3, 2) · (-3, 46, 18)

= -3 + 138 + 36

= 171

The scalar triple product is non-zero, which means that the three vectors are not coplanar. Therefore, the points a, b, and c do not lie in the same plane.

Similarly, we can calculate the scalar triple product for the other possible combinations of three points. If we find that the scalar triple product is zero for all combinations, then the four points a, b, c, and d lie in the same plane. However, in this case, we have already found that the scalar triple product is non-zero for one combination, so we can conclude that the points do not lie in the same plane.

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A composite figure is represented in the image.

A six-sided composite figure. A vertical line on the left is labeled 8 meters. The base is labeled 18 meters. There is a small portion from the vertical line that is parallel to the base that is labeled 6 meters. This portion leads to two segments that come to a point, and from that point, there is a height of 8 meters labeled.

What is the total area of the figure?

192 m2
216 m2
288 m2
336 m2

Answers

The total area of the figure is 216 m².

What is a quick rectangle answer?

A square shape is a kind of quadrilateral that has its equal sides equivalent to one another and all the four vertices are equivalent to 90 degrees. Consequently, it is likewise called an equiangular quadrilateral. A parallelogram is another name for a rectangle because its opposite sides are parallel and equal.

The rectangle has a length of 8 meters and a width of 18 meters, so its area is:

8 meters × 18 meters = 144 square meters

The triangle has a base of 18 meters and a height of 8 meters, so its area is:

(1/2) × 18 meters × 8 meters = 72 square meters

The total area of the six-sided composite figure is the sum of the areas of the rectangle and the triangle:

144 square meters + 72 square meters = 216 square meters

Therefore, the total area of the figure is 216 m².

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Dielectric breakdown occurs in a material when- ever the magnitude of the field E exceeds the dielectric strength anywhere in that material. In the coaxial capacitor of Example 4-15, *
(a) At what value of r is Emaximum? (b) What is the breakdown voltage if a = 1 cm, b=2 cm, and the dielectric material is mica with & = 6?

Answers

a) As per the magnitude, the value of r is Emaximum is 40-50 kV/mm.

b) The breakdown voltage of the coaxial capacitor with the given parameters is approximately 27.3 volts.

In order to determine the value of r at which Emax occurs, we need to find the point on the inner cylinder where the electric field is perpendicular to the surface. This occurs at the point where r = a/√(3), which is approximately 0.577 times the radius of the inner cylinder.

To calculate the breakdown voltage of the coaxial capacitor, we need to know the dielectric strength of the material. For mica, the dielectric strength is typically around 40-50 kV/mm. Using the given values of a=1cm, b=2cm, and & = 6, we can calculate the maximum electric field strength as:

Emax = V / ln(2)

We can then use the dielectric strength of mica to find the breakdown voltage:

Breakdown voltage = Emax / (dielectric strength of mica)

= (V / ln(2)) / (6 x 10⁷ V/m)

= 27.3 V

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Suppose f(x) and f'(x) are continuous but restricted to the interval 0 < x < 20, and assume the values of f'(a) are as shown. For each value, determine whether there is a local maximum, local minimum, or nothing. 2 0 5 10 15 20 f'(x) 520-95 < At x = 0, you guarantee Select an answer > At x = 5, you guarantee Select an answer At x = 10, you guarantee Select an answer At x = 15, you guarantee Select an answer At x = 20, you guarantee Select an answer

Answers

To determine whether there is a local maximum, local minimum, or nothing at each point, we need to use the first derivative test.

If f'(x) changes sign from positive to negative at a point, then we have a local maximum at that point. If f'(x) changes sign from negative to positive at a point, then we have a local minimum at that point. If f'(x) does not change sign at a point, then we have nothing at that point.

Using this information and the given values of f'(a), we can determine the answers for each point:

- At x = 0, f'(x) = 2. Since f'(x) is positive but does not change sign, we have nothing at x = 0.

- At x = 5, f'(x) = 0. Since f'(x) is zero, we have nothing at x = 5.

- At x = 10, f'(x) = 5. Since f'(x) is positive but does not change sign, we have nothing at x = 10.

- At x = 15, f'(x) = -9.5. Since f'(x) is negative and changes sign from positive to negative, we have a local maximum at x = 15.

- At x = 20, f'(x) = 0. Since f'(x) is zero, we have nothing at x = 20.

Therefore, the answers are:

- At x = 0, there is nothing.
- At x = 5, there is nothing.
- At x = 10, there is nothing.
- At x = 15, there is a local maximum.
- At x = 20, there is nothing.

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9. For which equation is the solution 6? (1 point)
Ox+6=10
04x=24
Ox-6=12
04=24

Answers

Answer:

04x=24

Step-by-step explanation:

04x=24

divide both sides by 4 to let x stand alone

04x÷4=24÷4

x=6

Consider the experiment consisting of 2 rolls of a fair 4 sided die. Let X be a random variable equal to the maximum of the 2 rolls (a) Find the probability distribution of X (b) Find the expected value of X (c) Find the standard deviation of 2X+10

Answers

The expected value of X is 2.5.  The standard deviation of 2X+10 is [tex]\sqrt{(5)}[/tex].

(a) To find the probability distribution of X, we can make a table listing all the possible outcomes and their probabilities:

X Outcome Probability

1 1,1 1/16

2 1,2; 2,1 2/16

3 1,3; 2,2; 3,1 3/16

4 1,4; 2,3; 3,2; 4,1 4/16

So the probability distribution of X is:

X 1 2 3 4

P(X=x) 1/16 2/16 3/16 4/16

(b) To find the expected value of X, we use the formula:

E(X) = Σ x P(X=x)

where Σ is the sum over all possible values of X. Using the probability distribution from part (a), we have:

E(X) = 1(1/16) + 2(2/16) + 3(3/16) + 4(4/16) = 2.5

So the expected value of X is 2.5.

(c) To find the standard deviation of 2X+10, we first need to find the expected value of 2X+10:

E(2X+10) = 2E(X) + 10 = 2(2.5) + 10 = 15

Next, we use the formula:

SD(2X+10) = [tex]\sqrt{(Var(2X+10))}[/tex]

where Var(2X+10) is the variance of 2X+10. Using the properties of variance, we have:

Var(2X+10) = 4Var(X)

So we just need to find the variance of X. Using the formula:

Var(X) = [tex]E(X^2) - [E(X)]^2[/tex]

We first find E(X^2):

E(X^2) = Σ [tex]x^2[/tex] P(X=x)

[tex]= 1^2(1/16) + 2^2(2/16) + 3^2(3/16) + 4^2(4/16)[/tex]

= 7.5

Then we find Var(X):

[tex]Var(X) = E(X^2) - [E(X)]^2[/tex]

[tex]= 7.5 - (2.5)^2[/tex]

= 1.25

So finally, we have:

SD(2X+10) = [tex]\sqrt{(4Var(X))}[/tex]

= [tex]\sqrt{(5)}[/tex]

So the standard deviation of 2X+10 is sqrt

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which statement is correct when we fail to reject the null hypothesis? group of answer choices it means we reject the alternative hypothesis it means we reject the null hypothesis it means we accept the alternative hypothesis

Answers

When we fail to reject the null hypothesis, it means we reject the alternative hypothesis.

When we fail to reject the null hypothesis, it means that we do not have enough evidence to support the alternative hypothesis. Another theory implies that there is a significant relationship between the two variables. Whereas, the null hypothesis states that there is no relationship between the two variables. In statistics, we often come across different opinions.

In general, the purpose of alternative hypothesis testing is to show that, under certain conditions, there is sufficient evidence to support the null hypothesis rather than certain test results (null hypothesis). It is often followed as a research hypothesis because it is based on However, research hypotheses sometimes overlap with the null hypothesis. Therefore, it does not necessarily mean that we accept the alternative hypothesis, but rather we simply cannot reject the null hypothesis.

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Which of these equations is produced as a step when the Euclidean algorithm is used to find the gcd of given integers? (121,120) (Check all that apply.) Check All That Apply 121=1⋅120+1 120=120⋅1+0 121=121⋅1+0 120=120⋅0+120 120=1⋅0+120 NOTE. This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Which of these equations is produced as a step when the Euclidean algorithm is used to find the ged of given integers? (123,277) (Check all that apply.) Check All That Apply 277=2⋅123+31 123=3⋅31+30 30=30⋅1+0 31=31⋅1+0 30=30−0+30 31=1⋅30+1

Answers

The equations that apply for the first set are 121=1⋅120+1 and 120=120⋅1+0, and the equations that apply for the second set are 277=2⋅123+31, 123=3⋅31+30, 31=31⋅1+0, and 30=30⋅1+0.

For the first set of integers (121,120), the equations that are produced as steps when using the Euclidean algorithm to find the gcd are:

121=1⋅120+1
120=120⋅1+0

For the second set of integers (123,277), the equations that are produced as steps when using the Euclidean algorithm to find the gcd are:

277=2⋅123+31
123=3⋅31+30
31=31⋅1+0
30=30⋅1+0

So the equations that apply for the first set are 121=1⋅120+1 and 120=120⋅1+0, and the equations that apply for the second set are 277=2⋅123+31, 123=3⋅31+30, 31=31⋅1+0, and 30=30⋅1+0.

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Determine whether the statement is true or false.
If f '(x) exists and is nonzero for all x, then f(8) ≠ f(0).

Answers

The statement "If a function f '(x) exists and is nonzero for all x, then f(8) ≠ f(0)" is not necessarily true.

If f(x) is an increasing or decreasing function on the Interval [0, 8], then it is possible that f(8) = f(0).

For example, consider the function f(x) = x, which is increasing on the interval [0, 8] and satisfies f '(x) = 1 for all x in [0, 8]. Then f(8) = 8 and f(0) = 0, so f(8) = f(0).

However, if we assume that f(x) is strictly increasing or strictly decreasing on the interval [0, 8], then the statement would be true.

This is because if f(x) is strictly increasing or decreasing, then it cannot have any repeated values in its range, and so f(8) ≠ f(0).

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!!PLEASE CHECK IF IM RIGHT!!

Answers

The amount that Boomer will get on his 18th birthday is given as follows:

$41,482.24.

What is compound interest?

The amount of money earned, in compound interest, after t years, is given by:

[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]

In which:

P is the principal, which is the value of deposit/loan/....r is the interest rate, as a decimal value.n is the number of times that interest is compounded per year, annually n = 1, semi-annually n = 2, quarterly n = 4, monthly n = 12.

The parameters for this problem are given as follows:

P = 27000, r = 0.024, n = 2, t = 18.

Hence the amount received on the 18th birthday is given as follows:

A(18) = 27000 x (1 + 0.024/2)^36

A(18) = $41,482.24.

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if we give a cup of water to a very
thirsty person and double what is left what would happen

Answers

If we give a cup of water to a very thirsty person and double what is left, the individual will be unable to finish what is left.

Effect of doubling the cup of water

The expected result will depend on the quantity of water present in the first cup. If the cup of water is small, the thirsty person may not be satisfactorily hydrated by taking three cups.

However, if the size of the cup is large and the water content is also large, the individual will be hydrated after just a cup of water. So, the response to this question depends on the size of the cup and the amount of water contained therein.

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Please help with this question, please i need it quick :( thank youuu

Answers

a) The family should expect to sell the property for: $19,026.90.

b) The family should expect to sell the property for: $670,432.

How to model the situations?

The rate of change for each case is a percentage, hence exponential functions are used to model each situation.

For item a, the function has an initial value of 29000 and decays 10% a year, hence the value after x years is given as follows:

y = 29000(0.9)^x.

In the 4th year, the value is given as follows:

y = 29000 x (0.9)^4

y = $19,026.90.

For item b, the function has an initial value of 435500 and increases 4% a year, hence hence the value after x years is given as follows:

y = 435500(1.04)^x.

Then the value in 11 years is given as follows:

y = 435500(1.04)^11

y = $670,432.

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Let X be normally distributed with mean μ = 120 and standard deviation σ = 20. Use Table 1. a. Find P(X ≤ 86). (Round "z" value to 2 decimal places and final answer to 4 decimal places.) P(X ≤ 86) b. Find P(80 ≤ X ≤ 100). (Round "z" value to 2 decimal places and final answer to 4 decimal places.) P(80 ≤ X ≤ 100) c. Find x such that P(X ≤ x) = 0.40. (Round "z" value to 2 decimal places.) x d. Find x such that P(X > x) = 0.90. (Round "z" value to 2 decimal places and final answer to 1 decimal place.) x

Answers

The following parts can be answered by the concept of Standard deviation.

a. We find that P(X ≤ 86) is approximately 0.0004.

b. We find that P(80 ≤ X ≤ 100) is approximately 0.1151.

c. We find that x such that P(X ≤ x) = 0.40 corresponds to a z-score of approximately -0.25. Therefore, x is approximately μ + (z-score × σ) = 120 + (-0.25 × 20) = 115.

d. Using Table 1, we find that x such that P(X > x) = 0.90 corresponds to a z-score of approximately 1.28. Therefore, x is approximately μ + (z-score × σ) = 120 + (1.28 × 20) ≈ 146.4.

a. To find P(X ≤ 86), we first need to calculate the z-score, which is given by (86 - μ) / σ. Plugging in the given values, we get (86 - 120) / 20 = -1.7. Using Table 1, we look for the closest z-score to -1.7, which is -1.69, and corresponding to it, we find the probability 0.0459. However, since we need to find P(X ≤ 86), we need to add the area to the left of -1.69 in the table, which is 0.0004.

b. To find P(80 ≤ X ≤ 100), we first need to calculate the z-scores for 80 and 100 using the same formula as above. The z-score for 80 is (80 - 120) / 20 = -2, and the z-score for 100 is (100 - 120) / 20 = -1. Plugging these values into Table 1, we find the probabilities corresponding to -2 and -1, which are 0.0228 and 0.1587 respectively. To find the probability for the range 80 ≤ X ≤ 100, we subtract the probability corresponding to -2 from the probability corresponding to -1, which is 0.1587 - 0.0228 = 0.1359.

c. To find x such that P(X ≤ x) = 0.40, we need to find the z-score corresponding to a cumulative probability of 0.40 in Table 1. The closest z-score to 0.40 is -0.25. We can then use the formula z = (x - μ) / σ and rearrange it to solve for x: x = μ + (z-score × σ) = 120 + (-0.25 × 20) = 115.

d. To find x such that P(X > x) = 0.90, we first need to find the z-score corresponding to a cumulative probability of 0.90 in Table 1, which is approximately 1.28. We can then use the formula z = (x - μ) / σ and rearrange it to solve for x: x = μ + (z-score × σ) = 120 + (1.28 × 20) ≈ 146.4, rounded to one decimal place. Therefore, x is approximately 146.4.

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the volume of a particular die is 8400mm3. use the fact 10mm equals 1cm to convert this volume to cm3.

Answers

Answer:

To convert mm³ to cm³, we need to divide the volume in mm³ by the cube of the conversion factor (10 mm = 1 cm).

1 cm = 10 mm

1 cm³ = (10 mm)³ = 1000 mm³

So, to convert 8400 mm³ to cm³, we divide by (10 mm)³ = 1000 mm³:

8400 mm³ / 1000 mm³/cm³ = 8.4 cm³

Therefore, the volume of the die in cm³ is 8.4 cm³.

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Andrea recently started collecting old stamps. She has collected 121
old stamps so far and plans to collect 17 more old stamps each week.
At that rate, how many weeks will it take Andrea to have more than
300 old stamps in her collection?
Write a two-step inequality, using the values provided in the problem,
that represents this situation. Use x as the variable.

Answers

The inequality for the provided sentence is (x+9)/(-4) >-2, and x>-1 is the obtained inequality's solution.
Given that, a maximum of -2 results when a number multiplied by 9 and split by -4.

What is inequality?
In mathematics, inequality is a concept that describes a relationship between two values. It is commonly expressed using symbols such as ">", "<", "≥", "≤", or "≠", and can be used to compare two numbers, variables, expressions, or sets. Inequality can be used to describe a range of values, such as "x is greater than 0 but less than 10", or "x is not equal to 0". Inequality is an important concept in mathematics, and it is used in many areas, such as problem solving, analysis, and statistics.

Let x be the unknowable integer.

x+9 is the result of adding 9 to an integer.

Divided by -4, the outcome is (x+9)/.(-4)

Up to a limit of -2

(x+9)/(-4) >-2

On both sides of the discrepancy, multiply -4 to get

x+9>8

Subtract  9 on both the sides of inequality, we get

x>-1

Therefore, the inequality for the given phrase is (x+9)/(-4) >-2 and the solution for the inequality obtained is x>-1.

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The area of a rectangle is (1 + √6). The length of one side is (√3+√2)m. Find without using a calculator, the length of the other side in the form √a + √b. where a and b are integers.​

Answers

Answer:

2.236067977

Step-by-step explanation:

(√a+√b) = (√3+√2)

            = (√5)

the length of the other side = 2.236067977

Answer:

[tex]( \frac{1 + \sqrt{6} }{ \sqrt{3} + \sqrt{2} } ) (\frac{ \sqrt{3} - \sqrt{2} }{ \sqrt{3} - \sqrt{2} } )[/tex]

[tex] \sqrt{3} - \sqrt{2} + \sqrt{18} - \sqrt{12} [/tex]

[tex] \sqrt{3} - \sqrt{2} + 3 \sqrt{2} - 2 \sqrt{3} [/tex]

[tex]2 \sqrt{2} - \sqrt{3} [/tex]

[tex] \sqrt{8} - \sqrt{3} [/tex]

So the length of this rectangle is (√8 - √3) meters, or (2√2 - √3) meters.

Right-lite LEDs Inc. produces a variety of portable LED lighting products. They would like to offer two new types of LED lights, a lantern and keychain flashlight, but are unsure of how many of each to manufacture. They expect to charge $3.25 per keychain flashlight and $7.75 per lantern flashlight. Each keychain flashlight requires 3 LED bulbs and 1 battery. Each lantern flashlight requires 6 LED bulbs and 4 batteries. Right-lite currently pays $.50 each per LED bulb and $.35 each per battery. They currently have 250 LED bulbs and 100 batteries on hand. Based on competitor’s sales, they expect to be able to sell 30 lanterns and 50 keychain flashlights in the next week.
Determine the number of each type of flashlight Right-lite should manufacture to maximize profits based on current constraints. Provide suggestions on how to further increase profits.

Answers

To maximize profits, we need to determine the number of each type of flashlight to produce based on the constraints provided.

Let x be the number of keychain flashlights to produce and y be the number of lantern flashlights to produce.

The objective function for profit is:

Profit = 3.25x + 7.75y - (0.53x + 0.354y) = 2.75x + 6.75y

The first constraint is the availability of LED bulbs:

3x + 6y ≤ 250

The second constraint is the availability of batteries:

x + 4y ≤ 100

The third constraint is the expected demand:

x ≤ 50

y ≤ 30

The corner points of the feasible region are (0, 0), (0, 25), (16.67, 25), (50, 12.5), and (50, 0).

To find the optimal solution, we evaluate the objective function at each corner point:

(0, 0) Profit = 0

(0, 25) Profit = 168.75

(16.67, 25) Profit = 305.21

(50, 12.5) Profit = 365.63

(50, 0) Profit = 137.5

Therefore, the optimal solution is to produce 50 keychain flashlights and 12.5 lantern flashlights to maximize profit, resulting in a profit of $365.63.

To further increase profits, Right-lite could consider reducing the cost of LED bulbs and batteries by finding alternative suppliers or negotiating better deals. They could also explore new markets and increase their advertising efforts to increase demand for their products. Finally, they could consider introducing new and innovative LED products to their product line to attract more customers.

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Can someone answer this for me..

Answers

Answer:

c

Step-by-step explanation:

i did the quiz

A mirror is made of two congruent parallelograms as shown in the diagram. The parallelograms have a combined area of 2 6 7 square yards. The height of each parallelogram is 1 1 7 yards.

Answers

Therefore , the solution of the given problem of surface area comes out to be Height =11/7 yards and Length = 79.5 yards

What exactly does an area mean?

The total size of the object can be determined by calculating how much room would be required to completely cover its exterior. When choosing a similar product with a cylindrical form, the environment is taken into account. Anything's total dimensions are determined by its surface area. The amount of water that a cuboid can hold depends on the number of sides that link its four trapezoidal shapes.

Here,

One parallelogram's area is equal to 267 / 2 = 133.5 square yards.

Thus, by dividing the area by the height of a parallelogram, we may determine its base:

One parallelogram's base is equal to its area times its height, or

=> 133.5 / (11/7)

=> 103.5 square yards

We can use the formula for a parallelogram's area to get the length of one side of the mirror now that we know its base and height:

=> Base x Height = parallelogram's area.

One mirror's side's length is calculated as follows:

=>  base / height

=> (103.5 / (11/7)) = 79.5 yards

The other side of the mirror is 79.5 yards long because it is composed of two parallelograms that are congruent with one another.

As a result, the mirror's measurements are:

Height =11/7 yards.

Length = 79.5 yards

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If the function y=e^-5x is vertically compressed by a factor of 6, reflected across the y-axis, and then shifted up 1 units, what is the resulting function? Write your answer in the form y=ce^ax+b

Answers

The resulting function 1 unit is y=6e⁵ˣ + 1.

How to find the resulting function of y = e⁻⁵ˣ?

To understand how to vertically compress, reflect across the y-axis, and shift a function, we first need to understand what each of these transformations does to a function individually.

Vertically compressing a function by a factor of k means multiplying the output (y) of the function by k. In this case, the function y = e⁻⁵ˣ will be compressed by a factor of 6, so the new function will be y = 6e⁻⁵ˣ.

Reflecting a function across the y-axis means switching the signs of the x-values. In this case, the function y = 6e⁻⁵ˣ will be reflected across the y-axis to create y = 6e⁵ˣ.

Shifting a function up 1 unit means adding 1 to the output (y) of the function. In this case, the function y = 6e⁵ˣ will be shifted up 1 unit to create y = 6e⁵ˣ + 1.

Therefore, the resulting function after vertically compressing by a factor of 6, reflecting across the y-axis, and shifting up 1 unit is y = 6e⁵ˣ + 1.

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Solve for x.
140°
6x – 8

Answers

The solution is: The measure of angle x is 74°

Here,

we know that

The inscribed angle measures half of the arc that comprises

so

∠ABC=(1/2)[arc ADC]

substitute the given values

150°=(1/2)[4x+4]

300°=[4x+4]

4x=300-4

4x=296

x=74°

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complete question:

Find the value of x if m arc ADC = (4x + 4)° and m angle ABC = 150°.

If x/6=(x+10)/42, what is the value of each expression? 6x+10

Answers

Answer:

Step-by-step explanation:

To solve the equation x/6=(x+10)/42 for x, we can cross-multiply and simplify:

x/6 = (x+10)/42

42x = 6(x+10) (multiply both sides by 42)

42x = 6x + 60 (distribute on the right side)

36x = 60 (subtract 6x from both sides)

x = 5/3 (divide both sides by 36)

Now that we have found x, we can substitute it into the expression 6x+10 and evaluate:

6x + 10 = 6(5/3) + 10 = 10 + 10 = 20

Therefore, 6x+10 equals 20 when x/6=(x+10)/42 and x is 5/3.

find the smallest integer k so that f(n) = n^3 n^4/n^2 1 is order of nᵏ.

Answers

the function f(n) is of the order of n^5, and the smallest integer k is 5.

To find the smallest integer k so that f(n) = n^3 n^4/n^2 1 is order of nᵏ, we need to simplify the expression first. We can simplify the expression as follows:

f(n) = n^(3+4-2)

f(n) = n^5

Now we can see that f(n) is order of n^5. Therefore, the smallest integer k is 5.
Hi! To find the smallest integer k for the function f(n) = n^3 * n^4 / n^2, we first need to simplify the expression.

f(n) = (n^3 * n^4) / n^2 = n^(3+4) / n^2 = n^7 / n^2

Now, using the exponent properties
, we can simplify it further:

f(n) = n^(7-2) = n^5

So, the function f(n) is of the order of n^5, and the smallest integer k is 5.

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making sure that the scales used by businesses in the united states are accurate is the responsibility of the national institute for standards and technology (nist) in washington, d.c. suppose that nist technicians are testing a scale by using a weight known to weigh exactly grams. the standard deviation for scale reading is known to be 1000. they weigh this weight on the scale 52 times and read the result each time. the 52 scale readings have a sample mean of x

Answers

We are given:

A weight known to weigh exactly 500 grams

The standard deviation for scale reading is known to be 1000

The weight is weighed on the scale 52 times and each time the result is read

The 52 scale readings have a sample mean of x

To make sure that the scale is accurate, we need to test if the sample mean is close enough to the true weight of 500 grams. We can use a hypothesis test for this purpose.

Let μ be the true weight of the weight in grams. The null hypothesis is that the scale is accurate, which means that the true weight of the weight is equal to 500 grams:

H0: μ = 500

The alternative hypothesis is that the scale is not accurate, which means that the true weight of the weight is different from 500 grams:

Ha: μ ≠ 500

Since we know the standard deviation of the scale reading (1000) and the sample size (52), we can use a t-test for the mean with a known population standard deviation. The test statistic is:

t = (x - μ) / (1000 / sqrt(52))

Under the null hypothesis, this test statistic follows a t-distribution with 51 degrees of freedom. We can use a significance level of 0.05.

If the calculated t-value is greater than the critical value from the t-distribution with 51 degrees of freedom at the 0.025 significance level (since this is a two-tailed test), we reject the null hypothesis and conclude that the scale is not accurate.

Let's assume that the sample mean is x = 499.8. Then the test statistic is:

t = (499.8 - 500) / (1000 / sqrt(52)) = -0.2236

The critical value from the t-distribution with 51 degrees of freedom at the 0.025 significance level is ±2.0096.

Since |-0.2236| < 2.0096, we fail to reject the null hypothesis. This means that there is not enough evidence to conclude that the scale is not accurate.

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The velocity of a drone relative to the air is modeled by v = 3i − j. The drone encounters wind with velocity modeled by w = −7i + 5j. Which is the true velocity vector of the drone?

Answers

The true velocity of the vector of drone is V = -4i + 4j

Given data ,

Let the velocity of a drone relative to the air is modeled by v = 3i - j

Now , the drone encounters wind with velocity modeled by w = -7i + 5j

And , The true velocity vector of the drone, taking into account both the velocity of the drone relative to the air and the velocity of the wind, is the vector sum of the drone's velocity and the wind's velocity.

Given the velocity of the drone relative to the air as v = 3i - j, and the velocity of the wind as w = -7i + 5j, we can add these vectors together to obtain the true velocity vector of the drone:

v + w = (3i - j) + (-7i + 5j)

To add vectors, we add their corresponding components. In this case, adding the i-components and j-components separately, we get:

(3i - 7i) + (-1j + 5j) = -4i + 4j

Hence , the component vector is V = -4i + 4j

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a group is celebrating the chinese new year eve. they make 40 dumplings and they make 3 of them to be lucky dumplings by putting coins in. assume that all dumplings look the same and they will eat the dumplings one by one. what is the expected number of dumplings to be eaten to find the first lucky dumplings?

Answers

The expected number of dumplings that need to be eaten to find the first lucky dumpling is 40/3 or approximately 13.33.

To answer this question, we need to understand the concept of the expected number. The expected number is the average number of times an event is expected to occur if an experiment is repeated a large number of times.

The expected number of dumplings to be eaten to find the first lucky dumpling is the sum of the products of the probability of finding a lucky dumpling on the nth try and the number of dumplings eaten up to that point. In mathematical notation, we can write it as:

Expected number = (3/40) x 1 + (37/40) x (3/37) x 2 + (37/40) x (33/37) x (3/36) x 3 + ...

Simplifying this expression, we get:

Expected number = 40/3

This means that, on average, the group will need to eat about 13 or 14 dumplings before they find the first lucky one.

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suppose there is a population of 100 rabbits. in this population, 60 rabbits are ff, 20 are ff, and 20 are ff. what is the allele frequency for the f allele in this population's gene pool?

Answers

The allele frequency for the f allele in this population's gene pool is 0.6. This means that out of all the alleles in the gene pool, 60% of them are the f allele.

The total number of rabbits carrying the f allele (60) can be divided by the total number of alleles in the gene pool to arrive at this figure (100).

As a result, 0.6 or 60% of the population's gene pool contains the f allele. With frequencies of 0.2 and 0.2, respectively, for the other two alleles, ff and ff, it may be concluded that the f allele is more prevalent.

This also indicates that the f allele, which has the highest frequency, is the most prevalent allele in the population.

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help me please i need help the question is the pic

Answers

Answer:

3rd answer 70 1/8

Step-by-step explanation:

What is the area of a right triangle with a height of 8 yards and a base of 17 yards?

base times height times .5

8.25*17*.5=70.125= 70 1/8

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