The circle graph shows the results of a national survey on the most popular afternoon activities of seventh graders. What percent of those students surveyed said that their favorite afternoon activity is playing video games?

If the calculated value is less than the table value, we fail to reject the null hypothesis.

What is the null hypothesis?

The null hypothesis is a statement or assumption that there is no statistically significant difference or relationship between two variables or groups being studied. It is usually denoted by the symbol H₀. It serves as a starting point for a statistical hypothesis test, and it is the opposite of the alternative hypothesis, which states that there is a statistically significant difference or relationship between the variables or groups being studied.

for the given sample :

mean=6.6

S.D=2.31

n=10

Mean of population:6

t0=(6.6-6)/2.31/sqrt(10)=0.82

for 95% confidence and 9 df

t value is:2.26

Hence, if the calculated value is less than the table value, we fail to reject the null hypothesis.

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The Pythagorean Theorem holds true for both triangles, then the triangles are not only similar, but also congruent.

Triangle xyz has sides of length x, y, and z and triangle pqr has sides of length p, q, and r.

To determine if triangle xyz is similar to triangle pqr, we must calculate the ratios of corresponding sides. This is done using the formula:

Ratio of sides = (Side length x) / (Side length y)

We can calculate the ratios for each side of the triangles and compare them. If the ratios are equal for all sides, then the triangles are similar. For example, if the ratio of side x to side y in triangle xyz is equal to the ratio of side p to side q in triangle pqr, then the triangles are similar. If the ratios are not equal for all sides, then the triangles are not similar.

We can use the Pythagorean Theorem to determine if the triangles are not only similar, but also congruent. The Pythagorean Theorem states that a2 + b2 = c2, where c is the longest side and a and b are the other two sides. If the Pythagorean Theorem holds true for both triangles, then the triangles are not only similar, but also congruent.

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Answer:

To find out how much interest you will earn, you need to multiply the bond principal amount ($1,000) by the interest rate (5%) and the number of years the bond matures (5).

The interest rate is expressed as a percentage, so you need to convert it to a decimal by dividing it by 100.

Interest = Principal x Interest Rate x Time

Interest = $1,000 x 0.05 x 5

Interest = $1,000 x 0.05 x 5 = $250

So, you will earn $250 in interest over the 5-year period.

The statement that is not true about samples is: "samples picked randomly are more representative of a population."

To determine this:

While random sampling is one way to ensure that a sample is representative of a population, it is not the only way. There are other methods of sampling such as stratified sampling, cluster sampling, and systematic sampling that can also be used to obtain a representative sample.

It is important to note that, even with random sampling, a sample may not be representative of the population if the sample size is too small or if there is a significant amount of bias in the sampling process.

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The slope of the line having the equation 4x - 3y = -3 is calculated to be

4/3

The slope of the line is gotten by rewriting the equation of the line in the standard form Ax + By = C. to equation of a line in slope intercept form which is y = mx + c

The equation of line in the problem is 4x - 3y = -3

The equation is rewritten as follows

4x - 3y = -3

-3y = -3 - 4x

Isolating y by dividing trough by -3

y = 1 + 4/3 x

y = 1.33x + 1

comparing with y = mx + c where m is the slope we can see that m = 4/3

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The angle ∠R, ∠S, and ∠T for the quadrilateral are ∠R, ∠S, ∠T = 112°, 112°, 68°.

what are quadrilaterals?

A quadrilateral is a polygon with four sides, four vertices, and four angles.

It is formed by joining four non-collinear points. The sum of the interior angles of quadrilaterals is always equal to 360 degrees. The word quadrilateral is derived from the Latin words ‘Quadra’ which means four and ‘Latus’ means ‘sides’. Not all the four sides of a quadrilateral need to be equal in length. Hence, we can have different types of quadrilaterals based on sides and angles.

Five special quadrilaterals are shown below in the image, along with their definitions and pictures, and points for them to get proven.

Now,

TQRS is an inscribed quadrilateral.

5 x - 52° + 3 x + 40° = 180°

8 x - 12° = 180°

8 x = 180° + 12°

8 x = 192°

x = 192° : 8 = 24°

m∠ R = 3 · 24° + 40° = 112°

m∠ T = 5 · 24° - 52° = 68°

m∠ S = 360° - ( 68° + 68° + 112° ) = 112°

Answer:  

∠R, ∠S, ∠T = 112°, 112°, 68°.

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Right question:-

"In quadrilateral QRST, m∠Q is 68°, m∠R is (3x + 40)°, and m∠T is (5x − 52)°. What are the measures of ∠R , ∠S , and ∠T ? Write the numerical values in that order with the measures separated by commas.

Answer:

Temperature.

Step-by-step explanation:

The temperature of the water depends on the minutes the water is in the freezer. If the water is frozen for longer, the water will be colder and if the water is frozen for less time, the water will be less cold.

Answer:

108 sorry there no more explanation!

Answer:

Step-by-step explanation:

180

So, the rate at which the area of the circular surface of the cookie dough is increasing with respect to time is 80π mm^2/min and the rate at which the height is decreasing with respect to time is  -2 mm/min.

Part A: The area of the circular surface of the cookie dough is given by A = πr^2, where r is the radius of the dough. The rate at which the area is changing with respect to time is given by dA/dt = 2πr*dr/dt. At time t, the radius is 20 mm and the rate at which it is increasing is 2 mm/min. Therefore, the rate at which the area of the circular surface of the cookie dough is increasing with respect to time is dA/dt = 2π(20 mm)(2 mm/min) = 80π mm^2/min.

Part B: The height of the dough is given by h, and the rate at which the height is decreasing with respect to time is given by dh/dt. Since the dough is retaining its cylindrical shape, the decrease in the height of the dough is exactly the opposite of the increase in the radius. At time t, the rate at which the radius is increasing is 2 mm/min, so the rate at which the height is decreasing with respect to time is dh/dt = -2 mm/min.

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The following pair of angles are corresponding congruent angles of these quadrilaterals:

∠G ≅ ∠T

∠F ≅ ∠R

∠H ≅ ∠Q

∠E ≅ ∠S

A quadrilateral in geometry is a four-sided polygon with four edges and four corners.

Given:

Quadrilateral GFHE and quadrilateral TRQS are similar.

The figures are given in the attached image.

The following pair of angles are corresponding congruent angles of these quadrilaterals:

∠G ≅ ∠T

∠F ≅ ∠R

∠H ≅ ∠Q

∠E ≅ ∠S

Therefore, all the pairs are given above.

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Answer:

Part a: Answer is 1/2

78-3/1500 = 75/150

= 1/2

Part b: Answer is -1/2

3-78/300-150

=-75/150

= -1/2

Part c: No, the two rates aren't the same,

because one is positive and the other is

negative.

Part d: The rate of change of the function

determined by using the two pairs of

coordinates is not the same. So, the

function modeling the movement of the

ball is a nonlinear function

Based on the information provided, Mason can cut four pieces of ribbon.

Based on the information provided, Mason has 2/3 of a foot ribbon, which is equivalent to 0.66.

To know the answer, use a division with the following formula:

Total ribbon/ size of the desired pieces

0.66 / 2/3 or 0.166 (2/3 = 0.166)

0.66 / 0.166

4 pieces

Based on this, it can be concluded that Mason will be able to get 6 1/6 feet long pieces.

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Step-by-step explanation:

you mean the slope-intercept form of a line equation ?

y = mx + b

or what is the problem ?

if my assumption is correct, then m is the slope of the line.

and we got a point on the line.

so, we could start with the point-slope form and then transform.

the point-slope form is

y - y1 = m(x - x1)

again, m is the slope, (x1, y1) is a given point on the line.

so, we have

y - -8 = 6(x - 12)

y + 8 = 6x - 72

y = 6x - 80

that means b = -80

The ordered pair that lies on the graph of the equation is (1, 2)

From the question, we have the following parameters that can be used in our computation:

y = 2x

The point in the ordered pair lies on the graph of the equation is the solution set

Take for instance, we set x = 2

So, we have

y = 2 * 1

Evaluate the product

This gives

y = 2

When repesented as an ordered pair, we have

(1, 2)

Hence, the point is (1, 2)

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Answer:

6

Step-by-step explanation:

since x=8, 8-2 equals 6

Answer: Let's call the price of an advance ticket "a" and the price of a same-day ticket "s". We know that the combined cost of one advance ticket and one same-day ticket is 60, so we can set up the equation: a + s = 60.

We also know that 40 advance tickets and 15 same-day tickets were sold for a total of 1400 dollars. So we can set up the equation: 40a + 15s = 1400

We have a system of two equations with two variables. We can use substitution or elimination method to solve for the unknowns.

Using substitution:

Solve the first equation for s, s=60-a

substitute it into the second equation, 40a + 15(60-a) = 1400

Expanding the second equation: 40a + 900 - 15a = 1400

25a = 500

a = 20

substitute a back into the first equation: s = 60 - 20 = 40

So the price of an advance ticket is $20, and the price of a same-day ticket is $40.

Step-by-step explanation:

Answer: The given equations are not valid because there is no equal sign between the first and second equation. If you are trying to solve a system of equations it should be in the form of

3x + 5y = - 9

-6x - 5y = 18

You can solve for x and y by using different methods such as substitution, elimination or graphing.

In this case, you can add the first equation to the second equation:

3x + 5y = -9

-6x - 5y = 18

-3x = 27

x = -9

Now you can substitute this value of x into one of the equations to find the value of y.

3x + 5y = -9

3(-9) + 5y = -9

-27 + 5y = -9

5y = 18

y = 3.6

So, the solution is x = -9 and y = 3.6

It's important to check your solution by substituting the values of x and y in the original equations to make sure that the solution is consistent.

Step-by-step explanation:

Based on equation 750=40x, the value of x is 18.75 weeks.

An equation is a mathematical statement that two or more algebraic expressions are equal or equivalent.

Equations must have the equation symbol (=) to show the equality of the mathematical expressions.

Equations are started with let statements, defining the variables.

Let the total amount of money in the account = y (in dollars)

Let the number of weeks Reuben has been adding money = x

750 = 40x

40x = 750

x = 18.75 (750/40)

Thus, based on the solution to the equation, we know that Reuben has added money into the account for 18.75 weeks.

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Compute the number of weeks Reuben has been putting money into the account.

When Jeremy's sample is being compared to the sample collected by Morgan and Maddy by the left, about 6 Jeremy samples ranges from 81-10 while only 2 samples ranges from 81-100 in Morgan's and Maddy's.

A histogram is defined as one of the graphical way of representation of data for an easy analysis, comparison and interpretation of results.

From the two histogram given above, the comparison of both results shows that about 6 Jeremy samples ranges from 81-10 while only 2 samples ranges from 81-100 in Morgan's and Maddy's.

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According to the question rate at which the volume is dV/dt = dV/dm * dm/dt + dV/dθ * dθ/dt.

The space covered within an object's borders in three dimensions is referred to as its volume. It is refereed as the object's capability on occasion.

Volume, which is measured in cubic units, is the three dimensional volume occupied by matter or encircled by a surface. The cubic centimeter (m3), a derived unit, is the Standard unit of volume.

Substituting in the given information, we have:

V(m, θ) = sqrt(θ) * ln(m)

m(t) = t^2 + 3

θ(t) = e^t

Therefore:

dV/dm = (1/m) * sqrt(θ)

dm/dt = 2t

dV/dθ = (1/2sqrt(θ)) * ln(m)

dθ/dt = e^t

plugging in the values of m(t) = t^2 + 3 and θ(t) = e^t

dV/dt = (1/(t^2+3)) * sqrt(e^t) * 2t + (1/2sqrt(e^t)) * ln(t^2+3) * e^t

So the rate at which the volume is changing at time t is given by dV/dt

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The solutions when the function f(x) = g(x) is x = -3 and x = -1, since the output of the function is similar.

With the condition that each input is associated to exactly one output, a function is a relationship between a collection of inputs and a set of allowed outputs. A mapping from A to B will only be a function if every element in set A has one end and only one image in set B. Let A & B be any two non-empty sets.

As we can observe from the given table, the two values for which the two function produce a similar output are at x = -3 and x = -1.

Hence, the solutions when the function f(x) = g(x) is x = -3 and x = -1, since the output of the function is similar.

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Average velocity between the interval t = 10 min to t = 15 min is; 52.5 miles per hour

The expression showing  Di's average velocity, in miles per hour, t minutes after entering the interstate highway is;

v(t) = ¹/₂₀₀t³ + ³/₂₀t² - ³/₈t + 60

At t = 10 minutes, we have;

v(10) = ¹/₂₀₀(10³) + ³/₂₀(10²) - ³/₈(10) + 60

v(10) = 5 + 15 - 7.5 + 60

v(10) = 52.5 miles per hour

At t = 15 minutes, we have;

v(15) = ¹/₂₀₀(15³) + ³/₂₀(15²) - ³/₈(15) + 60

v(15) = 16.875 + 33.75 - 5.625 + 60

v(15) = 105 miles per hour

Thus;

Average velocity between the interval t = 10 min to t = 15 min is;

v(15) - v(10) = 105 - 52.5

= 52.5 miles per hour

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The coordinate of P that divides line AB in the ratio 4:1 is (6.6, 3.8)

An equation is an expression that shows the relationship between numbers and variables.

If a point O(x, y) divides line segment AB with endpoints A(x₁, y₁) and B(x₂, y₂) in the ratio of n:m. The coordinates of O is:

[tex]x = \frac{n}{n+m}(x_2-x_1)+x_1 \\\\y = \frac{n}{n+m}(y_2-y_1)+y_1[/tex]

Given that P(x, y) divides line AB in the ratio 4:1. The coordinates are A(1, 3) and B(8, 4). Therefore:

[tex]x=\frac{4}{4+1}(8-1) +1=6.6\ unit\\\\y=\frac{4}{4+1}(4-3) +3=3.8\ unit[/tex]

The coordinate of P is (6.6, 3.8)

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The ratio table can be completed as follows :

The ratio table shows that every flower would have 5 petals.

2 flowers would therefore have ;

= 2 flowers x 5 petals

= 10 petals

4 flowers would have :

= 4 flowers x 5 petals

= 20 petals

15 petals would belong to :

= 15 / 5 petals per flower

= 3 flowers

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the probability exactly five heads may be obtained is 77%.

What is probability?

By simply dividing the favorable number of possibilities by the entire number of possible outcomes, the probability of an occurrence can be determined using the probability formula. Because the favorable number of outcomes can never exceed the entire number of outcomes, the chance of an event occurring might range from 0 to 1.

twelve people each spin a coin.

n = number of trials = 12

x = number of successes(head) among n trials = 5

p = probability of success(head) in any one trial = 1/2

probability of failure in any one trial (q = 1 - p) = 1/2

exactly five heads may be obtained 12 C 5 * (1/2)[tex].{5}[/tex] *(1/2)[tex].{5}[/tex] = 792/1024 =0.77

Hence the probability exactly five heads may be obtained is 77%.

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Answer:

C)  30 and 38

Step-by-step explanation:

In a normal distribution, 95% of the data points fall within two standard deviations of the mean.

Given:

To find the two values between which 95% of the data lies, subtract and add two standard deviations to the mean:

⇒ μ - 2σ = 34 - 2(2) = 34 - 4 = 30

⇒ μ + 2σ = 34 + 2(2) = 34 + 4 = 38

Therefore, 95% of the data lies between the values:

The value of x and y in the parallel lines are 14 and 60 respectively.

When parallel lines are cut by a transversal line, angle relationships are formed such as corresponding angles, alternate exterior angles, alternate interior angle, linear angles, vertically opposite angles etc.

Therefore, let's find the values of x and y in the parallel lines as follows:

4x + 12 = 68 (vertically opposite angles)

Vertically opposite angles are congruent.

Hence,

4x + 12 = 68

4x = 68 - 12

4x = 56

divide both sides by 4

x = 56 / 4

x = 14

Therefore, let's find the value of y.

68 + 2y - 8 = 180(same side interior angles)

Same side interior angles are supplementary

68 + 2y - 8 = 180

2y = 180 - 68 + 8

2y = 120

y = 120 / 2

y = 60

Therefore,

x = 14

y = 60 degrees

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The Maximum value of the function is  5.71 and the Minimum value of the function is  -2.71. To find the maximum and minimum values of the function y=3x-4sin3x, 0x2π, we used a graphing calculator.

first, we set the range of x from 0 to 2π and graphed the function. By looking at the graph, I could identify the maximum and minimum values of the function. The maximum value was 5.71 and the minimum value was -2.71. This can be seen at the peak and trough of the graph respectively.   I then used the calculator to find the exact values of the maximum and minimum.

To do this, I used the 'maximum' and 'minimum' functions on the graphing calculator. This allowed me to input the function and the range of x and the calculator was able to output the exact maximum and minimum values. The output was 5.71 and -2.71.   The calculator used was able to identify the maximum and minimum values of the function by using a process called calculus.

Calculus is the study of how functions change and by using the maximum and minimum functions, the calculator can identify the peak and trough of the graph.

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The total number of elephants in the herd is 24.

This is a math problem that can be solved using algebra. To start, let x be the total number of elephants in the herd.

From the first part of the problem, we know that:

x/3 = a herd of elephants seen on a mountain slope

From the second part of the problem, we know that:

3 * √(x - x/3) = a herd of elephants seen on a mountain slope

From the third part of the problem, we know that:

1 + 3 = 4 = the ultimate remainder of the herd seen in a lake.

We can then use these equations to solve for x.

x/3 + 3 * √(x - x/3) + 4 = x, where x is the total number of elephants in the herd.

x = 3 * (1 + √(x - x/3) + 4)

Solving for x, we get x = 24

So, the total number of elephants in the herd is 24.

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The quote that "Human beings only use ten percent of their brains. Ten percent! Can you imagine how much we could accomplish if we used the other sixty percent?" was made by Ellen DeGeneres.

The representation of an utterance in oral speech that is preceded by a quotative marker, such as a verb of saying, is known as a paraphrase. When doing a brainstorming exercise, quotes can help spark ideas that then influence the ideas for the piece.

Through the presentation of other people's ideas, they can steer you in new directions. Finally, using short quotes that won't keep a writer from writing for too long can help them as they put a piece together.

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