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3 years ago

What is the answer to this? PLEASE HELP!

Mathematics

1 answer:

Leno4ka [110]3 years ago

5 0

12 inches in 1 foot
12*12*12 cubic inches in 1 cubic foot = 1728 in^2

So 7125 in^3 = 7125/1728 = 4.123 ft^3 to nearest thousandth

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Describing Function Notation of a Scenario

san4es73 [151]

Answer:

v(h) represents the volume of the water (ft³) in the pool at h hours

h is the number of hours

When h increased v(h) decreased

Step-by-step explanation:

- A swimming pool has about 603 cubic feet of water

∴ The volume of the water in the pool initially is 603 feet³

- The pool liner has a small hole and is leaking at a rate of 15 cubic

feet each hour

∴ The rate of decreasing of the volume of the water in the pool is

15 feet³ per hour

- The volume of the the water v at a time h hour can represented by

a linear function v(h)

∴ v(h) = -15 h + 603 , where v(h) is the volume of the water in the

pool in cubic feet at h hour

- Let us put an example to understand the relation between v(h)

and h

- Assume that h = 0

∵ h = 0

∴ v(0) = -15(0) + 603

∴ v(0) = 603 ft³ ⇒ The volume of the water at the beginning

- Assume that h = 2 hours, that means we need to know the volume

of the water after two hours

∵ h = 2 hours

∴ v(2) = -15(2) + 603

∴ v(2) = -30 + 603 = 573 ft³

∵ h increased from 0 to 2

∴ v(t) decreased from 603 ft³ to 573 ft³

∴ The volume decreased when the number of hours increased

* v(h) represents the volume of the water (ft³) in the pool at h hours

* h is the number of hours

* When h increased v(h) decreased

5 0

3 years ago

Read 2 more answers

I need help plzzzz!!

MAXImum [283]

Answer:

it might be the second one not sure

5 0

3 years ago

You and your friend mix water and cirtic acid. You add 3 cups of citrtic acid for every 16 cups of water Your friend adds 2 cups

Vlad [161]

Answer:

A's mixture is more acidic.

Step-by-step explanation:

Given:

Two friends mix water and citric acid.

One (Let A) add 3 cups of citric acid for every 16 cups of water and another (Let B)adds 2 cups of citric acid for every 12 cups of water.

Now, we have to find that whose mixture is more acidic means:-

Solution:

A add 3 cups of citric acid for every 16 cups of water, the ratio = $\frac{3}{16}$

B adds 2 cups of citric acid for every 12 cups of water = $\frac{2}{12}$

Now, to find that who mix more citric acid in the mixture, firstly we will equalize the denominator of both fraction by taking LCM so that can be compare easily.

LCM of 16 and 12:- 48

16 - 16, 32, 48, 64, 80, 96....

12 - 12, 24, 36, 48, 60, 72.......

For friend A - $\frac{3\times3}{16\times3} =\frac{9}{48}$

For friend B - $\frac{2\times4}{12\times4} =\frac{8}{48}$

We found that in terms of 48 cups of water, friend A mixes 9 cups of acid while friend B mixes 8 cups of acid, means A is adding more acid than B and hence friend A's mixture is more acidic.

4 0

3 years ago

72 ÷(11-3²) ÷ 3 but as a fraction

Temka [501]

Let's evaluate the quantity within the parentheses. (11 - 3^2) becomes (2). Then we have:

(72 divided by 2) / 3, or 36/3, or 12.

8 0

3 years ago

Expresión factorizada 12abxyz - 3xyz - 4 ab + 1

BARSIC [14]

Answer:

12+3-4+1=12

Step-by-step explanation:

5 0

3 years ago