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3 years ago

PLEASE HELP THIS WAS DUE 1 WEEK AGO AND IM SO STRESSED OUT

Mathematics

2 answers:

dusya [7]3 years ago

7 0

I know how you feel. Can I get a better picture

shepuryov [24]3 years ago

4 0

15. 72 cm
17. 120 in.
16. 625.5 cm

could you make me the brainiest? Please

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Solve the problem as directed. The product of the base and height of a rectangle is the area. Can this statement be represented

Kipish [7]

b×h=a

this is how to represent it and it is a direct variation.

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3 years ago

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For f(x)=log(the 2 is below log)2(x), between which two integers does f(40) lie?

Veronika [31]

f(x) = log2 x

f(40) = log2 40

40 = 2^y

2^5 = 32 and 2^6 = 64

so f(40) lies between integers 5 and 6.

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3 years ago

A board that is 6.5 feet long has a section cut off that is 3.8 feet long. How much of the board is left?

insens350 [35]

I am not too sure but i think it is 2.7 feet.

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2 years ago

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3 years ago

Help me with this pleaae

marissa [1.9K]

Answer:

(D) 30pi inches

Step-by-step explanation:

First, we use the given volume, the given height, and the formula of the volume of a cylinder to find the radius of the base. Then we use the radius of the base to find the circumference of the base.

$volume = \pi r^2 h$

$volume = 6750 \pi~in.^3$

We set the formula equal to the volume and replace h with 30 in.

$\pi r^2 h = 6750 \pi~in.^3$

$\pi r^2 \times 30 ~in. = 6750 \pi~in.^3$

Divide both sides by 30pi in.

$r^2 = 225 ~in.^2$

Take the square root of each side.

$\sqrt{r^2} = \sqrt{225 ~in.^2}$

$r = 15~in.$

The radius of the base is 15 in.

Now we use the radius of the base and the formula of the circumference of a circle to find the answer.

$circumference = 2 \pi r$

$circumference = 2 \pi \times 15~in.$

$circumference = 30 \pi ~in.$

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3 years ago