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3 years ago

The sum of 3 and 5 divided by z (numerical expression)

Mathematics

1 answer:

Semenov [28]3 years ago

3 0

Is that polynomials

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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.

$circumference = 2 \pi r$

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

$circumference = 30 \pi ~in.$

6 0

3 years ago

Ms. Hernandez drives 40 miles each day — to and from work — 5 days a week. How many gallons of gas does she use? What informatio

nasty-shy [4]

Answer:

Step-by-step explanation:

40 = 5d

-Divide 5 by both sides by 5 which cancels 5 and leaves d but, then divide 40 by 5 which gives you 8.

D=8

-The information missing is how many gallons of gas he use in a day.

4 0

3 years ago

Help it's timed.

densk [106]

98 - x² = 0

x² = 98

x = ±√98

Lets factor 98

98 | 2

49 | 7

7 | 7

So, 98 = 2 . 7 . 7 = 2 . 7²

x = ±√2.7²

x = ±7√2

4 0

3 years ago

Read 2 more answers

Which of the following expressions represents the expanded version of the expression

maxonik [38]

Answer:

4th option

Step-by-step explanation:

7x(8x² - 4y² + 3y - 5) ← multiply each term in the parenthesis by 7x

= 56x³ - 28xy² + 21xy - 35x

4 0

3 years ago

Pls help or your mom will kidnap you

andrey2020 [161]

I think it is option 1 sorry if wrong

3 0

3 years ago

Read 2 more answers