This is my 8th grade science class and I really need help
Use the table

Answer:

The first option, V ≈ 1607.7 in²

Step-by-step explanation:

Find the volume of the given cylinder.

\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)

Given:

r = 8 in

h = 8 in

π = 3.14

Find:

V = ?? in³

\(\hrulefill\)

Now solving,

Substitute the given values into the formula:

=> V = (3.14)(8)²(8)

Using a calculator to simplify:

=> V = 1607.68 in²

Rounded to the nearest tenth:

∴ V ≈ 1607.7 in²

Thus, the first option is correct.

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: linear

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

3 people=5 bags

3+3+3=9

5+5+5= 15

Answer:

Step-by-step explanation:

tamika eats jelly beans at a rate of 3 jellybeans ber miniute since it would be 12/4. and it takes tamika 30 minutes which means that the snack pack had 90 jellybeans.

James eats jellybeans at a rate of 4 jellybeans per miniute so it took james 22.5 miniutes to eat a snack pack.

so you would subtract tamikas minutes(30 min) - james minutes(22.5) and get 7.5 minutes.

James took 7 minutes and 30 seconds less than Tamika to eat his jelly beans.

James took 7.5 fewer minutes to eat a snack-size pack of jelly beans as compared to Tamika

A unit rate means a rate for one of something.

It is written as a ratio with a denominator of one.

We have,

Tamika:

Rate of eating jellybeans = 12 jelly beans per 4 minutes.

12 beans = 4 minutes

Divide it by 4 into both sides

We get,

3 beans = 1 minute ___(1)

Tamika took 30 minutes to finish snack-size beans.

This means from (1),

3 x 30 jelly beans= 30 minutes

90 jelly beans = 30 minutes

There are 90 jellybeans in snack-size beans.

James:

Rate of eating the jellybeans = 28 jellybeans per 7 minutes

It can be written as:

28 jelly beans = 7 minutes

Multiplying 90/28 on both sides we get,

90 jelly beans = (90/28) x 7 minutes

90 jelly beans = 90/4 minutes = 22.5 minutes

This means James takes 22.5 minutes to finish snack-size jelly beans.

We see that,

The time took for Tamika to finish snack-size jelly beans = 30 minutes

The time took for James to finish snack-size jelly beans = 22.5 minutes

we have,

30 - 22.5 = 7.5

Thus,

James took 7.5 fewer minutes to eat a snack-size pack of jelly beans as compared to Tamika

Learn more about unit rates here:

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Answer:

A= (2,4)

B= Infinitly Many Solutions

Step-by-step explanation:

Answer:

Cold front

Step-by-step explanation:

I gotchu on this question no worries

Answer: The first one is A. Second file is Yes, No, No, YES, And the last one is 11 ounces

Step-by-step explanation:

Answer:

x + 5x = 14

6x = 14

x = 14/6

x = 7/3

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

find the area of the small square. 10x8=80

find area of big square. 14x14=196

subtract the small area from the big. 196-80=116

area of just the blue is 116 cm squared

Answer:

C. The mean increases by 1.4°.

Step-by-step explanation:

if you count the number of numbers in the set {58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57} it is 12 numbers.

The formula for mean is,  \(mean=\frac{sum- of- the- terms}{number-of-terms}\)

so if you add all the numbers here →,  {58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57}  you get a sum of 965.

Now 965 ➗12= 80.4166666667

If 98 is added we add 98 to 965 and get 1063.

That also means an additional number is being added so 12+1 = 13.

Now, 1063➗13= 81.7692307692

Ok now we approximate, 80.4166666667 is about 80.4 and 81.7692307692 is about 81.8.

Now we subtract 81.8-80.4 and get 1.4.

It was an increase of 1.4 in the mean so the answer is C.

Answer: -8

Step-by-step explanation: Remove Parentheses, then Subtract

4 from -4 and you get -8

-4+(-4) = -8

In the real number system, a negative number is a number that is less than zero.

Given are two negative numbers, -4 and -4

Adding two negative numbers is: you're just adding two "negative" arrows, so it's just like "regular" addition, but in the opposite direction. For instance, 4 + 6 = 10, and −4 − 6 = −4 + (−6) = −10.

Therefore, -4 + (-4) = -4-4 = -8

Hence, -4 + (-4) = -4-4 = -8

For more references on negative numbers, click;

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Answer:

Step-by-step explanation:

A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.

What is the volume, in cubic centimeters, of the cereal box?

Answer:I’m on that same question and I need help to

Step-by-step explanation:

Answer:

Table C is a linear function. Table A is an exponential function. And lastly table B is a quadratic function.

Step-by-step explanation:

I know that table C is linear because it has a constant rate of change the whole entire time.

I know table A is exponential because of the way it drastically increases at the end.

And lastly I know that table B is quadratic because if I were to graph it and keep on placing points, it would make a parabola.

I hope I helped.

Answer:

Area: 9

Perimeter: 22

Step-by-step explanation:

Area = ½ * (a+ b) * h = ½ * (4 + 5) * 2 = ½ * 9 * 2 = 9.

Perimeter = a + b + c + d = 4+5+6+7 = 22.

Answer:

P (Perimeter) = 21

A (Area) = 33

Step-by-step explanation:

P = a + b + c + d

A = (a + b/2) * h (or, rather, AREA = ONE-HALF BASE 1 + BASE 2 TIMES HEIGHT)

Answer:

volume = 4.6 units³

Step-by-step explanation:

The simply answer

Answer:

17.4

Step-by-step explanation:

60.9/3.5=17.4 I hope this helps

Answer:

6 = 10 = 15

Step-by-step explanation: This is what i can do

\(3\cdot \:4\div \:2=\\=12\div \:2=\\6\\\\4+16-10=10\\\\(1 + 2) + 3\times 4= \\=3+3\times \:4\\3+12 \\ =15\\\\\\\)

Order of Operations

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

First one: 3×4÷2

Since multiplication and division have the same power, you do the equation in order.

3×4=12

12÷2=6

Second one: 4+16-10

Since addition and subtraction have the same power, you do the equation in order.

4+16=20

20-10=10

Third one: (1+2)+3×4

You have to do the parentheses first...

1+2=3

Now you have to do multiplication since multiplication goes first (according to PEMDAS)

3×4=12

Now you have to add (3) and (12)

3+12=15

Final Answers

First one: 6

Second one: 10

Third one: 15

6=10=15

♡ Hope this helped! ♡

❀ 0ranges ❀

Answer: A

Step-by-step explanation:

It will never be a function if an x-value repeats. This data set thus represents a function.

With that in mind, we can use process of elimination to find the answer

We can immediately eliminate C because it is simply not true. You can tell by just looking at the data table that this is the case.

We know that it is a function so B is not correct. This also eliminates D as the vertical line test is used to see if an x-value repeats.

We are left with A, which is reasonable as the x-value is never shown to repeat.

Have a good one :D

Answer: A

Step-by-step explanation:

Answer: The y-intercept is the initial amount Tammy earns.

Step-by-step explanation:

Always remember that for graphs, the y-intercept is the initial amount. In this case, it would be the initial amount or the very first amount Tammy earns. If the line goes through the origin (0,0), that means that Tammy earns $0.00 for 0 hours of working.

Answer:

$0.25r + $5 = $12.50

Step-by-step explanation:

r represents the amount of rides Lacy went on during the day. If you do the problem in the correct order, you will get the answer

Step 1)

Subtract 5 from both sides

$0.25r + 5 (-5) = 12.50 (-5)

Step 2)

Divide by 0.25

0.25r (Divided by 0.25) = 7.50 (Divided by 0.25)

Step 3)

Answer

r = 30 rides

Answer:

140cm

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

y = 2x2 –12

Step-by-step explanation:

Answer: 1 5/7

Step-by-step explanation:

Answer:

1 5/7

Step-by-step explanation:

To get a mixed number, you subtract the denominator from the numerator as many times as you can. In this case, 12 - 7 = 5, and that's all you can do. You did that once, so you get 1 whole number, and 5 seventh's left over, or 1 5/7.

Answer:

use mat..h way i am not a bot it will help you get the answer i use it to do my homework

Step-by-step explanation:

but i think the answer is if you simplify it think the answer is \(-16\sqrt{2h} ^{7}\) tell me if i am wrong

Answer:

\(-16\sqrt{2}\) \(h^3\sqrt{h}\)

Step-by-step explanation:

\(-\sqrt{512h^{7} }\)

Apply radical rule: \(\sqrt{ab} = \sqrt{a} \sqrt{b}\)

\(- \sqrt{512} \sqrt{h^{7} }\)

Simplify \(\sqrt{h^{7} }\):

\(h^{3}\sqrt{h}\)

Simplify \(-\sqrt{512}\):

\(16\sqrt{2}\)

Answer:

\(-16\sqrt{2}\) \(h^3\sqrt{h}\)

Answer:

The vertex of the graph of the equation $y = 3x^2 - 6x + 7$ is the point $(1, 4)$.

Step-by-step explanation:

The vertex of the graph of a parabolic function $y = ax^2 + bx + c$ is given by the formula:

$x = \frac{-b}{2a}$

where a, b, and c are constants and x is the x-coordinate of the vertex.

For the given equation $y = 3x^2 - 6x + 7$, we have a = 3, b = -6, and c = 7. So, we can use the formula to find the x-coordinate of the vertex:

$x = \frac{-b}{2a} = \frac{-(-6)}{2(3)} = \frac{6}{6} = 1$

So, the x-coordinate of the vertex is 1. To find the y-coordinate, we substitute the value of x back into the original equation:

$y = 3(1)^2 - 6(1) + 7 = 3 - 6 + 7 = 4$

So, the vertex of the graph of the equation $y = 3x^2 - 6x + 7$ is the point $(1, 4)$.