9. You want to compare the average amounts of time students in sixth, seventh, and eighth grade spend on homework each week.
b. Perform the experiment. Can you make a conclusion about which students spend the most time on homework? Explain your reasoning.

Answer:-49 11/45

Step-by-step explanation:

Answer:                                                                                                      

-49 11/40

Step by step explanation:

Answer:

3.45 x 10^5 hope this helps

Answer:

To me its to me fuzzy can you bring it closer

Step-by-step explanation:

\(2x^2-3x-1 -(3x^2 +5x)\\\\=2x^2 -3x -1 -3x^2-5x\\\\=-x^2-8x-1\)

-0.97 has the strongest correlation. Therefore, option D is the correct answer.

The correlation coefficient describes how one variable moves in relation to another. A positive correlation indicates that the two move in the same direction, with a value of 1 denoting a perfect positive correlation. A value of -1 shows a perfect negative, or inverse, correlation, while zero means no linear correlation exists.

Given that, correlation coefficients have values between -1 and 1 and that the closer the value is to -1 or 1, the stronger the correlation

From the options -0.97 is closer to -1

Thus, -0.97 has the strongest correlation

Therefore, option D is the correct answer.

Learn more about the correlation coefficient here:

https://brainly.com/question/27226153.

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Answer:1. 7/8>2/5  2. 5/6 >  2/5   4/10<7/8 3/12<1/4

Step-by-step explanation:

Q7: D

Q8: B

Step-by-step explanation:

Q7:

A cuboid is a three-dimensional shape, having six faces, where all the faces (top, bottom, and lateral faces) of the prism are rectangles, and every two opposing side faces are identical.

Therefore a cuboid is a rectangular prism.

Q8:

Volume of a cube

= l³

= 6 x 6 x 6

= 216 m³

Answer:

The sum of the angles in a triangle must be 180°, while 80+40+40 only gives us 160°.

Hope this helped :3

Answer:

\( 12^{11} \)

Step-by-step explanation:

Count the number of factors of 12. The number is 11. There are 11 factors of 12, so the base is 12, and the exponent is 11.

Answer: \( 12^{11} \)

Answer:

12¹¹

Step-by-step explanation:

12 × 12 × 12 × 12 × 12 × 12 × 12 × 12 × 12 × 12 × 12

12 is being multiplied by itself 11 times.

= 12¹¹

= 743008370688

Answer:

3.25. 4*3.25=13 and 5-13=-8

P.s.

Please give me brainliest for my next rank.

Answer:1152 ft^2

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

The cube root of 64 is the number which when multiplied by itself three times gives the product as 64. Since 64 can be expressed as 2 × 2 × 2 × 2 × 2 × 2. Therefore, the cube root of 64 = ∛(2 × 2 × 2 × 2 × 2 × 2) = 4.

The cube root of 64 is 4.

Before solving the question, let's understand the concept of cube root.

The cube root of a number is the value obtained by multiplying it by itself three times or thrice. When we multiply 3 by itself three times, we get 3 x 3 x 3 = 27 = 3³, so the cube root of 27 is 3. Thus, we can say that the cube root gives a value that is basically cubed.

The cube root is denoted by ∛

Now, we will find the cube root of 64.

Firstly, we have to find factor 64.

64 = 2 × 2 × 2 × 2 × 2 × 2.

64 = ∛4³

64 = 4

Therefore, the cube root of 64 is 4.

To know more about cube root:

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Answer:

$11.07

Step-by-step explanation:

32 divided by 6= 5.3

5.3x2.09=11.07

The answer is $11.07

Answer: 28.8

Step-by-step explanation: first we find out 20 percent of 240=48

240-48=192 after discount

15 percent of 192= 28.8

Answer:

A = plane

B = whale

C = sunken ship

Step-by-step explanation:

The given vertical number line is modelling the positions of objects and animals in relation to sea level.

Sea level is the average height of the surface of the world's oceans, which we use as a reference point to measure the elevation and depth of land and water features on Earth.

From inspection of the given number line:

We have been told that a plane is flying at 8,500 feet above sea level. Therefore, as position A is the only position above sea level, A = plane.

We have been told that a sunken ship is resting at 3,000 feet below sea level, and that directly above the ship, a whale is swimming 1,960 feet below sea level. Therefore, the whale is above the ship. As position B is above position C, this means that B = whale and C = sunken ship.

Answer: -5x - 3y + 1

Step-by-step explanation:

When you get a question that asks you to combine like terms, arrange the x terms together, the y terms together, and the numbers together. Be sure to keep the + and - signs in front of each term.

-10x + 5x + 3y - 6y - 7 + 8

Once the like terms are together, you can add and subtract.

-10x + 5x = -5x

+3y - 6y = - 3y

-7 + 8 = +1

Put all the terms together to form the simplified expression.

-5x - 3y + 1

Answer:

B) 850

Step-by-step explanation:

The initial cost is the base price or flat fee that is paid before any extra charges are added on.

Answer:

The answer to 28 is D. The answers for question 24 and more are below.

Step-by-step explanation:

24. 5 x 3/4 = 15/4

25. -2 x 8/3 - 16/3 (Multiply the numerator, cannot be divided by the denominator without being a mixed number)

26. 24/72 = 1/3 (simple multiplication and division, in this case both the numerator and denomator multiply each other)

27. 15/12 (again, simple multiplication.)

Answer:

Step-by-step explanation:

Multiply

24.

\(5 \times \frac{3}{4} \\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:5=\frac{5}{1}\\\\=\frac{5}{1}\times \frac{3}{4}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}\\\\\frac{5}{1}\times \frac{3}{4}=\frac{5\times \:3}{1\times \:4}\\\\=\frac{15}{4}\\\\15\div 4=3 \: remainder 3 \\\\= 3\frac{3}{4}\)

25.

\(-2 \times \frac{8}{3} \\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:2=\frac{2}{1}\\=-\frac{2}{1}\times \frac{8}{3}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}\\\\\frac{2}{1}\times \frac{8}{3}=\frac{2\times \:8}{1\times \:3}\\\\=-\frac{16}{3}\\\\16\div 3 = 5 \:remainder\: 1 \\\\5 \frac{1}{3}\)

26.

\(\frac{1}{4} \times \frac{3}{2} \times \frac{8}{9} \\\\\frac{1}{4}\times \frac{8}{9}=\frac{2}{9}\\\\=\frac{2}{9}\times \frac{3}{2}\\\\\mathrm{Cross-cancel\:common\:factor:}\:2\\=\frac{3}{9}\\\\\mathrm{Factor\:the\:number:\:}\:9=3\times \:3\\=\frac{3}{3\times \:3}\\\\\mathrm{Cancel\:the\:common\:factor:}\:3\\= \frac{1}{3}\)

27.

\(25\times \frac{3}{5} \times \frac{1}{12} \\\\\frac{3}{5}\times \frac{1}{12}=\frac{1}{5}\times \frac{1}{4}\\=25\times \frac{1}{5}\times \frac{1}{4}\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:25=\frac{25}{1}\\\\=\frac{25}{1}\times \frac{1}{5}\times \frac{1}{4}\\\\\frac{25}{1}\times \frac{1}{5}=\frac{5}{1}\\\\=\frac{5}{1}\times \frac{1}{4}\\\\=\frac{5\times \:1}{1\times \:4}\\\\= \frac{5}{4} \\\\5\div 4 = 1\: remainder\: 1\\\\= 1\frac{1}{4}\)

28.

\(\frac{3}{4} \\\mathrm{Convert}\:\frac{3}{4}\:\mathrm{to\:decimal\:by\:applying\:long\:division}\\\\\mathrm{The\:solution\:for\:Long\:Division\:of}\:\frac{3}{4}\:\mathrm{is}\:0.75\\\\3 : 4 = \frac{3}{4} \\\\75\% = \frac{75}{100} \\\\Cross\: cancel \: the\:common\:factor\:25\\\\75\div 25 =3\\100 \div 25 = 4\\\\= \frac{3}{4}\)

Answer:

5 Pints total

Each person gets 5 pints

Step-by-step explanation:

There is a 9/10 and a 1/10 which makes 1

There are 2 2/10 and 2 8/10 which makes 2

There is a 4/10 and a 6/10 which makes 1

There are 2 5/10 which makes 1

This adds up to a total of 5 pints.

If the question is how many pints are in each drink for them all to be equal it would be 5/10 or 1/2 pints each because there are 5 pints and 10 people with milk.

Answer:

6/25

Step-by-step explanation:

Given:

Total spin - 75 times

Experiment Table:

Outcome to Frequency

1 - 20

2 - 25

3 - 18

4 - 12

To Find:

What is the relative frequency for the event "Spin a 3"?

Solve:

Since, from the given experiment table we can see that:

Spin a 3 frequency is 18

And the total spin is 75 times

Thus we get:

18/75

Then we simplify

6/25

Hence, relative frequency for event "Spin a 3" is 6/25

Decimal form : 0.24

Kavinsky

Answer:

Step-by-step explanation:

ressions.

There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are removed, the total number of pens that remains is given by the expression (12x − 10) + (10y − 5). Here, x represents the number of boxes containing red pens and y represents the number of boxes containing blue pens.

Answer:

-22.5

Step-by-step explanation:

-15- |-7.5|

after taking the absolute value off, -7.5 would become positive 7.5. But then the negative outside the absolute value makes it negative again.

-15-7.5

=-22.5

The simplified expression -15 - |-7.5| is equal to -22.5.

To simplify the expression -15 - |-7.5|, we'll follow these steps:

Evaluate the absolute value: |-7.5|.

The absolute value of a number is its distance from zero on the number line. In this case, |-7.5| is equal to 7.5 because 7.5 units away from zero.

Substitute the absolute value into the expression:

-15 - 7.5.

Perform the subtraction:

-15 - 7.5 = -22.5.

Therefore, the simplified expression -15 - |-7.5| is equal to -22.5.

To know more about an expression follow;

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Answer:

54  3/ 4   −1  3/ 8  =53  3/ 8

hope this helps

if u need step by step answer just tell me

Answer:

25.685 square feet.

Step-by-step explanation:

Circumference = 2 * π * radius

From this, we can derive the formula for the radius:

radius = Circumference / (2 * π)

Let's substitute the value of the circumference and calculate the approximate radius:

radius = 18 / (2 * π)

radius ≈ 18 / (2 * 3.14159)

radius ≈ 2.865 feet

Now that we have the approximate radius, we can calculate the area:

Area ≈ π * radius²

Area ≈ 3.14159 * (2.865)²

Area ≈ 3.14159 * 8.193225

Area ≈ 25.685 square feet

Therefore, the approximate area inside the circular park is approximately 25.685 square feet.

Answer:

The amount of dough used for the pepperoni will be twice that of the cheese or 2 times the amount of dough.

Step-by-step explanation: