It is assumed that approximately​ 15% of adults in the u.s. are​ left-handed. consider the probability that among 100 adults selected in the​ u.s., there are at least 30 who are​ left-handed. given that the adults surveyed were selected without​ replacement, can the probability be found by using the binomial probability formula with x counting the number who are​ left-handed? why or why​ not?
a. Yes, because the 100 adults represent less than 5% of the U.S. adult population, the trials can be treated as independent.
b. No, because the 30 adults represent more than 5% of the sample size, the trials are dependent.
c. No, because the 100 adults were selected without replacement, the selections are dependent.
d. No, because the probability of being right-handed is greater, x must count the number of right-handed adults.

The probability that at most three records will be incomplete is approximately 0.650 (rounded to three decimal places).

What is Binomial Distribution ?

The binomial distribution is the discrete probability distribution used in probability theory and statistics that only allows for Success or Failure as the possible outcomes of an experiment.

This is a binomial distribution problem with n=10 and p=0.156. Let X be the number of incomplete records. We need to find P(X ≤ 3).

Using a TI-83, TI-83 Plus, or TI-84 calculator, we can use the binomial cumulative distribution function (binomcdf) to find this probability:

binomcdf(10, 0.156, 3) ≈ 0.650

Therefore, the probability that at most three records will be incomplete is approximately 0.650 (rounded to three decimal places).

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We know that Angle-side-angle is one of the criterias to find congruent triangles, then with the given information we can make only one unique triangle.

Here we know two of the angles of a triangles and the length of the side between these two angles.

This can be written as an: Angle-Side-Angle.

Remember that this is one of the conditions for congruent triangles.

This means that A-S-A defines completely a single triangle, thus, there is only one triangle that we can make with that information.

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The date which is 100 days ago from 12 February 2023  is equal to

November 04, 2022 .

Present date is equal to 12 February 2023.

Date which is 100 days is written as :

January month has 31 days.

December month has 31 days.

November month has 26 days.

Total days equal to :

( 31 + 31 + 26 + 12 ) days = 100 days

100 days ago from 12 February 2023 is equal to :

12 February 2023  minus 100 days is 04 days 2022.

Therefore, the day which is 100 days ago from 12 February 2023 is given by   November 04, 2022 .

The above question is incomplete , the complete question :

What is 100 days ago from 12 February 2023 ?

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The solution for n of the expression in this problem is given as follows:

n = 5.

With the application of the distributive property, the outer term multiplies each of the inner terms of the expression. If possible, these inner terms than can be added or subtracted combining the like terms.

The mistake in the solution was applying the distributive property to 3(2n - 7), as 3 has to multiply both terms, 2n and -7, hence:

3(2n - 7) = 6n - 21.

Thus the solution to the expression is obtained as follows:

6n - 21 = 9

6n = 30

n = 30/6

n = 5.

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We would substitute the expression for g(x), which is 4x, into the expression for f(g(x)), giving f(g(x)) = 3(4x) + 2 = 12x + 2.

What is function ?

Function can be defined in which it relates an input to output.

To simplify f(x) + g(x) where f(x) = 3x + 2 and g(x) = 4x, we can simply add the two functions by adding their corresponding terms. Therefore, f(x) + g(x) = 3x + 2 + 4x = 7x + 2.

To simplify the function f(g(x)), we would first substitute g(x) into the expression for f(x) wherever x appears, giving f(g(x)) = 3(g(x)) + 2

Then, we would substitute the expression for g(x), which is 4x, into the expression for f(g(x)), giving f(g(x)) = 3(4x) + 2 = 12x + 2.

Combining functions can be useful in many situations, such as in physics or engineering where multiple variables or parameters are involved in a single equation. It can also be useful in finance or economics where the behavior of multiple factors needs to be modeled in a single function.

Therefore, we would substitute the expression for g(x), which is 4x, into the expression for f(g(x)), giving f(g(x)) = 3(4x) + 2 = 12x + 2.

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The given system of equations, option C. The system has a nontrivial solution.

When given a system of three equations with three unknowns, it is possible to determine if the system has a nontrivial solution by using row operations and Gaussian elimination. Nontrivial solutions are solutions that are not all 0.

In the given system of equations, the left-hand side of each equation consists of 3 variables, 4x₁-6x₂+13x₃, 4x₁-10x₂-x₃, and 8x₁+4x₂+14x₃. By performing row operations on the equations, the augmented matrix can be reduced to the form of the identity matrix.

The first row operation performed is to subtract the first row from the second row, resulting in

=> 4x₁-10x₂-x₃ = -2x₁-2x₂+13x₃.

The second row operation is to subtract twice the first row from the third row, resulting in

=> 8x₁+4x₂+14x₃ = 0.

The third row operation is to divide the second row by -2, resulting in

=> 4x₁-10x₂-x₃ = x₁+x₂-13x₃.

This reduced form of the augmented matrix can then be rearranged to the form of the identity matrix, indicating that the system of equations has a nontrivial solution.

Therefore, the answer to the question is that the system has a nontrivial solution

Hence the option (c) is correct.

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Answer: [tex]r=\Large\boxed{\pm 2\sqrt{21} }[/tex]

Step-by-step explanation:

Given equation

[tex]8r^2+8=680[/tex]

Subtract 8 on both sides

[tex]8r^2+8-8=680-8[/tex]

[tex]8r^2=672[/tex]

Divide 8 on both sides

[tex]8r^2\div8=672\div 8[/tex]

[tex]r^2=84[/tex]

Take square roots on both sides

[tex]r=\pm \sqrt{84}[/tex]

[tex]r=\Large\boxed{\pm 2\sqrt{21} }[/tex]

Hope this helps!! :)

Please let me know if you have any questions

The value on conversion of 300 Fahrenheit to Celsius will be equal to 148.8 Celsius depending on the relation.

The temperature in degree celsius is calculated using the formula -

Celsius = 5/9 (F - 32)

Now we need to keep the value of fahrenheit in the formula where F represents Fahrenheit

Celsius = 5/9 (300 - 32)

Firstly solving the bracket where subtraction sign is present. So, performing the subtraction first.

Celsius = 5/9 × 268

Performing division and multiplication on Right Hand Side of the equation

Temperature in Celsius = 148.8

Therefore, the temperature in Celsius is 148.8.

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The question is, "Jada earns twice as much money per hour as Diego. Diego earns twice as much money per hour as Lin. Select all the graphs that could represent how much Jada, Diego, and Lin earn for different amounts of time worked."

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107+73 = 180

107-73 = 34

========================================================

Explanation

Rule: Supplementary angles always add to 180 degrees.

This is our system of equations.

[tex]\begin{cases}x+y = 180\\x-y = 34\\\end{cases}[/tex]

Add the equations straight down.

After the y terms go away, we have this new equation: 2x = 214 which solves to x = 107 after dividing both sides by 2.

Then use this x value to find y

x+y = 180

107+y = 180

y = 180-107

y = 73

Or you could say

x-y = 34

107-y = 34

-y = 34-107

-y = -73

y = 73

Either way, we get the same y value each time. This helps confirm the answer.

Another way to confirm the answer is shown in the next section below.

---------------------

Check:

x+y = 180

107+73 = 180

180 = 180 .... confirms the 1st equation

x-y = 34

107-73 = 34

34 = 34 ... the other equation is confirmed.

In short,

you need to subtract 2

P is located at the point (31/13, 44/13).

How to determine?

Let A and B be two points on a line segment, and let P be the point that divides AB in the ratio 3:10. We can find the coordinates of P as follows:

Suppose that the coordinates of A are (x1, y1) and the coordinates of B are (x2, y2). Then the coordinates of P can be found using the following formula:

P = ( (10 * x1 + 3 * x2) / (10 + 3), (10 * y1 + 3 * y2) / (10 + 3) )

In other words, we add 10 parts of x-coordinates of A to 3 parts of x-coordinates of B, and divide by the sum of the parts (10 + 3 = 13) to get the x-coordinate of P. Similarly, we add 10 parts of y-coordinates of A to 3 parts of y-coordinates of B, and divide by the sum of the parts (10 + 3 = 13) to get the y-coordinate of P.

So if we know the coordinates of A and B, we can plug them into the formula above to find the coordinates of P.

For example, suppose that A has coordinates (1, 2) and B has coordinates (7, 8). Then the coordinates of P can be found as follows:

P = ( (10 * 1 + 3 * 7) / (10 + 3), (10 * 2 + 3 * 8) / (10 + 3) )

= ( (10 + 21) / 13, (20 + 24) / 13 )

= (31/13, 44/13)

Therefore, P is located at the point (31/13, 44/13).

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Ounces per cup is a measure of volume used in cooking; a standard measuring cup holds 8 fluid ounces.

Ounces per cup is a proportion of volume utilized in preparing and food planning. It alludes to the quantity of liquid ounces that can be held in a standard cup measure. In the US, a standard estimating cup holds 8 liquid ounces, so when somebody alludes to a specific number of ounces per cup, they are normally alluding to the number of liquid ounces that are expected to fill one cup.

Understanding ounces per cup is significant in cooking and baking, as recipes frequently call for fixings to be estimated in cups or liquid ounces. It is additionally essential to take note of that ounces per cup can change contingent upon the kind of fixing being estimated, as certain fixings have various densities or loads per volume.

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The greatest common factor of 30y⁸ +10y⁴ is 10y⁴

The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4. GCF is often used to find common denominators.

The common factors of 30 are: 1,2,3,5,6,10,15,30

The common factors of 10 are : 1,2,5,10

therefore the greatest common factor is 10

The greatest common factor between y⁴ and y⁸;is y⁴

Therefore the greatest common factor of 30y⁸ +10y⁴ is 10y⁴ i.e 10y⁴(3y⁴+1)

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Answer:

The range is (7, 11)

Step-by-step explanation:

domain is x

range is y

so when you graph it, it's from the bottom 7 to 11

so, (7, 11)

The square of the expression 1/2 is given as the numeric value in the terms of the 0.7071.

The value that a number yields when multiplied by itself is known as the square root of the number. The square root is denoted by the radical sign. For example, 16 minus 4 is 16. The root symbol or radicals is another name for the radical symbol. If an integer is a perfect square, we can quickly determine its square root.

square root of the 1/2 = √1/2

We can use this rule for radicals to write the expression.

√a/b = √a/√b

So, by multiplying by the right form of 1, we may rationalise the denominator or, in other words, remove the radical from the denominator:

√1/2 x √2/√2

√2/2

1.4142/2

0.7071

So the square of the 1/2 is 0.7071.

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Therefore , the solution of the given problem of triangle comes out to be ∠ADC  = 100 and ∠DCB  = 39 Degree.

Given that they have three quadrants or more, triangles are considered polygons. It has a straightforward geometric shape. The letters ABC form a right-angled triangle when put together. Euclidean geometry creates a new rectangle of square when the borders are incompatible. Given that they have three sides and three corners, triangles are categorised as polygons. The corners of a triangle are determined by where its three sides meet. The sum of the angles inside a triangle is 180 degrees.

Here,

Given :

A triangle ADC and Triangle DCB

To find the angle :∠ADC and ∠DCB in the figure

So,

Acc to triangle angle sum property:

43 + 3y + 7 + 2x + 17 = 180

Simplifying, we get:

2x + 3y + 67 = 180

Subtracting 67 from both sides, we get:

2x + 3y = 113

and

61 + 3y - 13 + 4x - 1 = 180

4x + 3y + 47 = 180

4x + 3y = 133

2x + 3y = 113

4x + 3y = 133

-4x - 6y = -226

Adding this to the second equation, we get:

-3y = -93

Dividing both sides by -3, we get:

y = 31

Substituting this value of y into either equation, we can solve for x:

2x + 3(31) = 113

2x + 93 = 113

2x = 20

x = 10

Therefore, the solution is x = 10, y = 31.

Thus,

∠ADC  = 3(31) + 7 = 93 + 7  = 100

∠DCB = 4(10) -1 = 40 -1  =39

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The desired value is the target or goal for the variable, while the controlled value is the actual or measured value.

The difference between the desired value of a variable and the controlled (actual) value is known as the error or deviation. It addresses the sum by which the actual value varies from the desired value, and is normally utilized as criticism in control frameworks to change the framework yield.

The objective of a control framework is to limit this mistake and bring the actual value as close as conceivable to the desired value. The mistake can be positive (assuming the actual value is more noteworthy than the desired value), negative (in the event that the actual value is not exactly the desired value), or zero (in the event that the actual value equivalents the desired value).

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The conversion of 5kg in pounds is 11.0231 pounds (rounded to four decimal places).

A kilogram is greater than a pound. I know that a kg is greater than a lb because of something called conversion factors.

Put very simply, a conversion factor is a number that can be used to change one set of units to another, by multiplying or dividing it. So when we need to convert 5 kilograms into pounds, we use a conversion factor to get the answer.

The conversion factor for kg to lb is:

1 kg = 2.2046244201838 lb

Now that we know what the conversion factor is, we can easily calculate the conversion of 5 kg to lb by multiplying 2.2046244201838 by the number of kilograms we have, which is 5.

5 x 2.2046244201838 = 11.023122100919 lb

To convert 5kg to pounds, you can use the conversion factor of 2.20462 pounds per kilogram. Multiplying 5kg by this conversion factor gives:5 kg * 2.20462 pounds/kg = 11.0231 pounds.

Therefore, 5kg is equivalent to 11.0231 pounds (rounded to four decimal places).

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Answer:

12.598

Step-by-step explanation:

divide the length value by 2.54

The domain is 0 ≤ x ≤ 52. The maximum number of lawns she can mow with 13 gallons is 52, and the minimum is 0 lawns.

In Mathematics, a domain is the set of all real numbers for which a particular function is defined.

In Mathematics, the horizontal extent of any graph of a function represents all domain values and they are read and written from smaller to larger numerical values, and from the left of a graph to the right.

By critically observing the graph shown in the image attached above, we can reasonably and logically deduce the following domain and range:

Domain = {0, 52}.

Range = {0, 13}.

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The converted value representing in grams and ounce is given by 30 grams is equal to 1.05822 ounce.

Conversion factor representing the relation between ounce and grams is given by :

28 grams equal to one ounce

Substitute the required grams value to be converted into ounce we have,

⇒ 28 grams = 1 ounce

⇒ 1gram = ( 1 / 28 ) ounce

⇒ 30 gram = ( 30 ) × ( 1 / 28 ) ounce

⇒ 30 gram =  ( 1.05822 ) ounce

Therefore, the value after conversion grams into ounce is given by            30 gram =  ( 1.05822 ) ounce .

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The conversion of 275 mm to inches is 10.8268 inches.

Millimeter (mm) and inch are both units of measurement used to express length or distance. Millimeter is a metric unit of length commonly used in the International System of Units (SI) and is equivalent to one-thousandth of a meter.

To convert 275 mm to inches, we can use the conversion factor of 1 inch = 25.4 mm.

So, we can divide 275 mm by 25.4 mm/inch to get the equivalent measurement in inches:

275 mm ÷ 25.4 mm/inch = 10.8268 inches (rounded to four decimal places)

Therefore, 275 mm is approximately equal to 10.8268 inches.

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The child is most likely operating at visualization level of van hiele's. The solution has been obtained by using the Van Hiele model.

What is Van Hiele model?

The van Hiele theory explains how children pick up geometry. It makes the claim that there are five different degrees of geometric thinking: visualisation, analysis, abstraction, formal deduction, and rigour. Every level has a unique lingo and set of symbols. The levels are progressed through "step by step" by the students.

We are given that a child tells that square has 4 sides and 4 angles by seeing the quadrilateral.

From this, we get that the child is operating at the visualization level of van hiele's because by looking at a figure he tells the number of sides and angles.

Hence, the child is most likely operating at visualization level of van hiele's.

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210 lbs is approximately equal to 95.2544 kg  ( rounded to four decimal places )

The conversion factor to convert lbs to kilogram is 0.453592

1 lbs = 0.453592 kg

The conversion is the process of changing the unit of one quantity to another units  

The conversion factor is defined as the number that is used to change one unit to another units by multiplying or dividing

The mass in kg = The mass in lbs × conversion factor

Substitute the values in the equation

1 lbs = 0.453592 kg

210 lbs = 210 × 0.453592

Multiply the numbers

= 95.2544 kg ( rounded to four decimal places )

Therefore, 210 lbs is 95.2544 kg

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domain is x

range is y

domain is time

range is distance

domain is between 0 & 170 seconds

range is 0 & 60 meters

meters per seconds is like

miles per hour so

this graph is about SPEED !

speed is usually indicated by the graph's

SLOPE !

200 mph is approximately equal to 321.86 km per hour ( rounded to two decimal places )

The conversion factor to convert mph to km per hour is 1.6093

1 mph = 1.6093 km per hour

The conversion is the process of changing the unit of one quantity to another units  

The conversion factor is defined as the number that is used to change one unit to another units by multiplying or dividing

The speed in km per hour = The speed in mph × conversion factor

Substitute the values in the equation

1 mph = 1.6093 km per hour

200 mph = 1.6093 × 200

Multiply the numbers

= 321.86 km per hour  ( rounded to two decimal places )

Therefore, 200 mph is 321.86 km

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I can't see the questions, its very blurry. sorry

upload a better picture if you have

Answer:

Step-by-step explanation:

You can create a vector both by enclosing the elements in square brackets like v=[1 2 3 4 5] or using commas, like v=[1,2,3,4,5]. They mean the very same: a vector (matrix) of 1 row and 5 columns.

Answer:

I don't really understand geo but if this is proof so u have to see if there is anything parallel perpendicular