What is the result 31 x 2 ?

Answer:

f(x) = 4x + 4

Step-by-step explanation:

See picture below :)

Answer:

Below

Step-by-step explanation:

Radians =  degrees * pi /180

Radians * 180/pi   =  degrees

Answer: Here is the answers to your previous question that was deleted. As for this question, I believe the answer is the first one.

1) [tex]200\pi[/tex]
2) [tex]3\sqrt{3}[/tex]  
3) [tex]-1[/tex]  
4) 9  
5) 0.151

Step-by-step explanation:

#1

[tex]=\frac{dV}{dt} =\frac{4}{3} \pi .3r^3\frac{dr}{dt}[/tex]

[tex]=\frac{dV}{dt} =4\pi r^2\frac{dr}{dt}[/tex]

[tex]=\frac{dV}{dt} =4\pi r^2*2...[\frac{dr}{dt} =2][/tex]

[tex]=\frac{dV}{dt} = 8\pi r^2~~~ in^3/min[/tex]

         [tex]r=5[/tex]

[tex]=\frac{dV}{dt} =8\pi (5)^2[/tex]

[tex]=200\pi ~~~in^3/min[/tex]

#2

[tex]\frac{d}{dt} (x^2+y^2)=\frac{d}{dt} (16)[/tex]

[tex]2x(\frac{dx}{dt} )+2y(\frac{dy}{dt})=0[/tex]

[tex]2x(\frac{dx}{dt} )+-2y(\frac{dy}{dt})=0[/tex]
Divide both sides by 2.

[tex]x(\frac{dx}{dt})=-y(\frac{dy}{dt})[/tex]

[tex]\frac{dx}{dt}=\frac{-y(\frac{dy}{dt}) }{x}[/tex]

As the particle is passing through the point [tex](2,2\sqrt{3})[/tex] , So, the point will satisfy the equation. Substituting the value of [tex]x=2[/tex] , [tex]y=2\sqrt{3}[/tex] and [tex]\frac{dy}{dt} -3[/tex],

we get ,

[tex]\frac{dx}{dt} =\frac{((-2\sqrt{3})*(-3))}{2}[/tex]

[tex]=\frac{6\sqrt{3} }{2}[/tex]

[tex]=3\sqrt{3}[/tex]

#3

Go on to Desmos and put in [tex]x+3y=6[/tex] and look at x=0 and x=1 and use those two as your points.

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]=\frac{1-3}{2-0}[/tex]

[tex]=\frac{-2}{2}[/tex]

[tex]=-1[/tex]

#4

[tex]y=3x^2-4x-6[/tex]

[tex]\frac{dy}{dt} =5x-6[/tex]

[tex]\frac{dy}{dt}=5(3)-6[/tex]

[tex]\frac{dy}{dt} =9[/tex]

#5

[tex]V=s^3[/tex]

[tex]\frac{dV}{dt} =3*s^2(\frac{ds}{dt})[/tex]

[tex]-2=3*s^2(\frac{ds}{dt} )~~~~~~~~~~~~~Equation 1[/tex]

[tex]\frac{ds}{dt} =\frac{1.33}{s^2}[/tex]

[tex]V=s^3[/tex]

[tex](27)^0^.^3^3=(s^3)^0^.^3^3[/tex]

[tex]s[/tex] ≈ [tex]2.97 ~~~~~~~~~~~~~~~~~~~~~~Equation2[/tex]

Substitute equation2 to equation1, we get

[tex]\frac{ds}{dt} =\frac{1.33}{(2.97)^2} =0.151[/tex]

I hope this helps you! Cheers! ^^

The length of 75cm converting to inches is 29.53 inches.

The inch is a unit of length commonly used in the United States, the United Kingdom, and some other countries. It can be calculated by using the conversion factor of 1 inch being equal to 2.54 centimeters.

Understanding conversions between different units of measurement is crucial in various fields such as science, engineering, and mathematics. Therefore, to convert centimeters to inches, we need to divide the number of centimeters by 2.54.

In this case, 75 cm divided by 2.54 results in 29.53 inches.

The length of 75 cm is equivalent to approximately 29.53 inches.

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The equation is given by 5n + 100n = 210

Peggy has 8 quarters and 2 nickels

Let's call q the number of quarters and n the number of nickels.

If Peggy has four times as many quarters as nickels, we can write the following equation:

q = 4n

Then, each quarter has a value of 0.25 dollars and each nickel has a value of 0.05 dollars, so

0.25q + 0.05n = 2.10

Because she had $2.10. Now, we can replace the first equation on the second one

0.25(4n) + 0.05n = 2.10

1n + 0.05n = 2.10

Finally, we can multiply both sides by 100, so

100n + 0.05(100)n + 2.10(100)

100n + 5n = 210

Therefore, the equation that can be used to solve the problem is

5n + 100n = 210

Now, we can solve the equation for n

105n = 210

105n/105 = 210/105

n = 2

Then, q is equal to

q = 4n

q = 4(2)

q = 8

It means that Peggy has 8 quarters and 2 nickels.

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complete question is listed below:

Peggy had four times as many quarters as nickels. She had $2.10 in all. How many nickels and how many quarters did she have?

Which of the following equations could be used to solve the problem?

On+4 n=210

5 n+100 n=210

n+4 n=2.10

5n+100 n=2.10.

To prove that two triangles △ABC and △DEF are similar, we can use the following theorem:

The Angle-Angle (AA) Similarity Theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

Or else, if ∠A ≅ ∠D and ∠B ≅ ∠E, then △ABC ~ △DEF. This theorem relies on the fact that when two angles of one triangle are congruent to two angles of another triangle, the third angle must also be congruent due to the fact that the sum of the angles in a triangle is always 180 degrees. Thus, the triangles must have the same shape and are therefore similar.

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Answer:

Step-by-step explanation:

188lbs = 85.2754 kg

The required converting value into kilograms of the given 116 pounds is equal to 52.62 kilograms ( round up to two decimals ) .

Converting factor used to convert pounds to kilograms is equal  to:

1 pound = 0.453592 kilograms

Now to get the value of 116 pounds we have,

116 pounds = 116 × converting factor

Substitute the value of converting factor we have,

⇒ 116 pounds = 116 × 0.453592 kilograms

⇒ 116 pounds = 52.6167 kilograms

⇒ 116 pounds = 52.62 kilograms ( round up to two decimals )

Therefore, the converted values of the required 116 pounds is equal to 52.62 kilograms ( round up to two decimals ) .

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Answer:

Step-by-step explanation:

The strength of a linear relationship between two variables is typically measured by the correlation coefficient (r) or the coefficient of determination (r^2). A value of r or r^2 closer to 1 indicates a stronger positive linear relationship, whereas a value closer to -1 indicates a stronger negative linear relationship. A value of r or r^2 closer to 0 indicates a weaker or no linear relationship.

Looking at the given regression equations and their correlation coefficients, the regression with the weakest linear relationship between x and y is Regression 3:

Regression 1: y = -5.8x - 6.5, r = -0.7621

Regression 2: y = 2.4x - 14.7, r = 0.809

Regression 3: y = -7.4x - 17.4, r = -0.233

Regression 4: y = -3.4x - 8.5, r = -0.6121

Regression 3 has the lowest absolute value of r (0.233), indicating the weakest or no linear relationship between x and y. Therefore, Regression 3 represents the weakest linear relationship between x and y among the given options.

The angle of polygons is an important concept in geometry and can be calculated using the formula (n-2) x 180. Quadrilaterals are a specific type of polygon with four sides and four angles, and their interior angles can be found by dividing the sum of the interior angles by the number of sides.

The angle of polygons is an important concept in geometry. A polygon is a closed shape with three or more sides, and the angles of a polygon are the interior angles formed by the sides. Quadrilaterals are a specific type of polygon with four sides and four angles.

To find the sum of the interior angles of a polygon, you can use the formula (n-2) x 180, where n is the number of sides. For example, a quadrilateral has four sides, so the sum of its interior angles would be (4-2) x 180 = 360 degrees.

Each individual angle of a quadrilateral can be found by dividing the sum of the interior angles by the number of sides. So for a quadrilateral, each angle would be 360/4 = 90 degrees.

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The capital letter H has 2 reflectional symmetry and 2 rotational symmetry.

A figure has reflectional symmetry if it can be reflected across a line and still look the same. For the capital letter H, there is two lines of symmetry, which is the vertical line and horizontal line that divides the letter into two equal halves. Reflecting the letter across this line produces the same letter. So, the H has only 2 reflectional symmetries.

A figure has rotational symmetry if it can be rotated by some angle and still look the same. For the capital letter H, if we rotate it 180 degrees and 360 degrees about the center point of the letter, it will look the same. There is no other angle of rotation that produces the same letter. Therefore, the H has only 2 rotational symmetries.

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--The question is incomplete, answering to the question below--

"How many reflectional symmetries does this figure have?

Enter your answer

___ reflectional symmetries

How many rotational symmetries does this figure have?

Enter your answer

___ rotational symmetries"

The number of ways two names can be chosen from 76 in a raffle where only one entry is allowed is 3,025.

This can be calculated by using the combination formula: nCr = n!/(r!(n-r)!), where n is the total number of names (76) and r is the number of names to be chosen (2). The calculation for the same is written out below:

nCr = 76!/(2!(76-2)!)

= 76!/(2!*74!)

= 3,025.

This means that there are 3,025 possible combinations of two names that can be chosen from the 76 names if only one entry is allowed per person.

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Linear Interpolation Calculator is a free online tool that shows the interpolated point for specific coordinates, also termed as online calculator.

It allows users to interpolate (interpolation is a mathematical technique for estimating any value between two known points) data points between the sets(two sets) of points or coordinates.

Take the two known points and calculate the value of the point that lies between them. This has been used in as many engineering applications as estimating the value of a point on a graph or table. This calculator helps in estimating the value of a point that lies between two known points on a line.

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The equation of the axis of symmetry for the parabola is x = 2.

What is the axis of symmetry?

The object's shape is symmetrical because of the axis of symmetry, which is a straight line. On each of its sides, the axis of symmetry produces an exact reflection. It might be lateral, vertical, or horizontal. The two sides of an object are the same if we fold and unfold it along the axis of symmetry. Different shapes have various symmetry lines. There are four lines of symmetry in a square, two lines in a rectangle, infinite lines in a circle, and no lines of symmetry in a parallelogram. There are n axes of symmetry in a regular polygon with n sides.

Given equation of the parabola is

y = 2/3 (x - 2)² - 5

The general form of a parabola is y = a(x - h)² + k.

The vertex of the parabola is (h,k).

The equation symmetric axis is x = h.

Now compare the equation y = 2/3 (x - 2)² - 5 with y = a(x - h)² + k:

a = 2/3, h = 2, k = -5

The equation of the axis of symmetric is x = 2.

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The sample mean symbol is X bar, representing the average value of a sample, calculated by summing values and dividing by observations.

The sample mean image is addressed by (articulated "x-bar"). It is utilized to address the typical worth of an example of information, and is determined by adding every one of the qualities in the example and separating by the quantity of perceptions.

For instance, in the event that we have an example of 10 numbers {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, we can compute the example mean by including the entirety of the qualities and isolating by the all out number of perceptions:

X bar = (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10)/10

X bar = 5.5

The sample mean is a normally involved measurement in inferential insights, where it is utilized to gauge the populace mean. It is likewise utilized in speculation testing, certainty stretches, and other measurable examinations.

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Answer: 9 laps in 1 day = 18 laps in 2 days

Step-by-step explanation:

To complete the proportion, we can use the fact that the number of laps is directly proportional to the number of days:

9 laps in 1 day = 18 laps in x days

To solve for x, we can use the property of proportions that the product of the means equals the product of the extremes:

9 laps × x days = 1 day × 18 laps

Simplifying, we get:

9x = 18

Dividing both sides by 9, we get:

x = 2

Therefore, the missing number to complete the proportion is 2. The complete proportion is:

9 laps in 1 day = 18 laps in 2 days

Answer: 2 days

Step-by-step explanation: 9 + 2 equals 18 therefor 18 laps in 2 days

Answer:

Step-by-step explanation:

To find what the ratio would be, we need to know what to multiply 5 & 3 by so that when we add them, we get 80. Let's assume the number we multiply by is x:

5x + 3x = 80

8x = 80

x = 80 / 8

x = 10

Now, we multiply 5 by 10 and 3 by 10

= 50:30

Your ratio would be 50:30

Double check: 50 + 30 = 80

Therefore , the solution of the given problem of function comes out to be is that the function approaches negative infinity as x approaches positive or negative infinity.

The mathematics curriculum covers the study of number and their variable as well as our surroundings, architecture, and both actual and hypothetical locations. The link between the amounts of inputs as well as the associated outputs for each is shown graphically by a function. A function is, to put it simply, a group of inputs whose, when combined, result in particular outputs for every input. Each role is assigned a region, locale, or range .

Here,

Given :

f(x) = -x² + 14x³ - 24x⁷ - 10x¹² + 22x⁴ - 18x¹¹ + 4x⁴  +21

To describe the end behavior of the given polynomial function f(x), we only need to consider the term with the highest degree, which is - 10x¹²

Since the degree of the term is even and the coefficient is negative, we know that as x approaches positive or negative infinity, the function will also approach negative infinity.

Therefore, we can say:

As x to -∞, f(x)  to - ∞

As x to +∞, f(x) to-∞

So the end behavior of the function

f(x) = -x² + 14x³ - 24x⁷ - 10x¹² + 22x⁴ - 18x¹¹ + 4x⁴  +21

is that the function approaches negative infinity as x approaches positive or negative infinity.

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Another name for the regression line is the​ least squares line.

A regression line is an estimate of the line that describes the true, but unknown, linear relationship between the two variables. The equation of the regression line is used to predict (or estimate) the value of the response variable from a given value of the explanatory variable.

Another name given to regression line is the least squares line because it is chosen so that the sum of the squares of the differences between the observed​ y-value and the value predicted by the line is as small as possible.

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Answer:

i believe its C

Sorry if its wrong

Step-by-step explanation:

Answer:

(C) 1/6 + 3/6

Step-by-step explanation:

If you want to add fractions all you do is add them across to get your sum.

The benefit of doing so is: If the teenager has earned less than $12,000 then they don't get the federal taxes withheld. It would be beneficial to the teen because they would get more money.

A teen might want to claim exemption from federal income taxes being withheld from their paycheck if they expect to earn less than the standard deduction amount for the tax year and they will not owe any federal income tax.

For the tax year 2022, the standard deduction amount for a single taxpayer who is not claimed as a dependent on another taxpayer's return is $12,950.

By claiming exemption from federal income taxes, the teen would have more money in their paycheck and would not have to wait to receive a tax refund when they file their tax return at the end of the year.

However, if the teen ends up earning more than the standard deduction amount or if they have other sources of taxable income, they may owe federal income tax and may have to pay a penalty for not having enough taxes withheld during the year.

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Answer:

5n+32a=5

Step-by-step explanation:

.

Answer:

It is called a solution.

Answer:

6

Step-by-step explanation:

∆ABC is congruent with ∆BDE

so BD/BA = DE/AC

=> 8/(8 + 16) = x/18

8/24 = x/18

24x = 8(18)

24x = 144

x = 144/24 = 6

Answer: X =  6

Step-by-step explanation:

Since the triangles are congruent (similar), then

8/24   =   X/18

Cross Multiply

X x 24  =  8 x 18

24X =  144

X =  144/24

X =  6

A danger that is associated with using extrapolation when making predictions is assuming that the underlying patterns will continue into the future.

One danger of using extrapolation when making predictions is that it assumes that the underlying patterns observed in the data will continue into the future.

However, there may be external factors or other variables that are not accounted for in the data that could cause the patterns to change or break down. For example, if there is a major economic or political event that affects the housing market, the trend observed in previous data may not hold up in the future.

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Sergio observes thickening and discoloration of the nail of the Index finger. His doctor diagnosed Sergio with a nail infection. Sergio is most likely suffering from a fungal infection.

Fungal infections are also called as mycosis. They are usually caused by different species of fungi.Fungal infections that cause thickening and discoloration of nails, a condition known as onychomycosis.

Onychomycosis is a fungal infection of the nail. It is a common condition that affects both fingernails and toenails. The infection typically starts at the tip of the nail and then spreads towards the base. Fungal infections of the nail can cause the nail to thicken, become brittle and discolored, and can also cause separation of the nail from the nail bed.

Fungal infections of the nail are typically caused by dermatophytes, but other types of fungi can also be responsible. The diagnosis includes laboratory tests, and treatment may include antifungal medication.Therefore, the correct word is fungal.

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The question is incomplete, but most probably the complete question is,

Type the correct answer in the box. Spell all words correctly.

Fill in the box with one of the following words: bacterial, fungal, parasitic, protozoan, viral.

Sergio observes thickening and discoloration of the nail of the Index finger. His doctor diagnosed Sergio with a nail infection. Sergio is most likely suffering from a/an _______ infection.

To calculate z table online we put Raw Score, Population Mean, Standard Deviation, σ   then calculator give us answer.

A z-table, also called a standard normal table or unit normal table, is a table of standardized values ​​used to determine the probability that a given statistic is below, above, or below the standard normal distribution. A z-score of 0 indicates that the given point is the same as the mean. Therefore, on the graph of the standard normal distribution, z = 0 is the midpoint of the curve. A positive Z value indicates that the point is to the right of the mean, and a negative Z value indicates that the point is to the left of the mean. There are several different types of Z-tables. The values ​​in the table below represent a range from z=0 to a specific z-score.

Z Means table (0 to Z)  

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We can solve the sudoku provided by first looking at the numbers that have fewest possibilities, that is, that appear in larger quantities, as seen below:

5   3   4   6   7   8   9   1   2

6   7   2   1   9   5   3   4   8

1   9   8   3   4   2   5   6   7

8   5   9   7   6   1   4   2   3

4   2   6   8   5   3   7   9   1

7   1   3   9   2   4   8    5   6

9   6   1   5   3   7   2   8   4

9   6   1   5   3   7   2   8   4

2   8   7   4   1   9   6   3   5

3   4   5   2   8   6   1   7   9

Sudoku is a number puzzle game that involves filling in a 9x9 grid with digits from 1-9, with the objective being to ensure that each row, column, and 3x3 sub-grid contains all of the digits from 1 to 9.

To solve a sudoku puzzle, it is best to start with the easiest cells first, usually those with the fewest possibilities. Look for cells that only have one possible answer and fill them in. Then, move on to more difficult cells and use logic and deduction to fill in the remaining numbers. It is also helpful to use pencil marks to keep track of possible numbers for each cell. The key to solving sudoku is to be patient, persistent, and to use logic and deduction to work through the puzzle.

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The area of the purple ring is 10,843.079 ft²

Remember that for a circle of radius R the circumfernce is:

C = 2*3.14*R

Here we know that the circumference of the inner circle is C = 221.056 ft

Then the radius will be:

221.056 ft = 2*3.14*R

221.056 ft/(2*3.14) = R

35.2 ft = R

Then the radius of the outer circle is:

R' = 35.2ft + 33.3ft = 68.5 ft

The area of the ring is the diffence between the areas of the larger circle and the smaller circle, then:

area = 3.14*( (68.5 ft)² - (35.2 ft)²) = 10,843.079 ft²

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