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4 years ago

I need help please someone please!

Mathematics

1 answer:

Svetach [21]4 years ago

8 0

Answer:it the 3rd one

Step-by-step explanation:

I done this

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What's the formula to find this?

Komok [63]

25 cubic centimeters....
Hope this helps! all you had to do it multipley <span />

7 0

3 years ago

Read 2 more answers

100% of my grade plz help

Montano1993 [528]

Answer: for the box. x 5 / -2 / 2 / -1 / 0 / -3 / 3

y 9 / -5 / 0 / 5 / -1 / 9 / 7 / y

Step-by-step explanation:

I hope it helped

3 0

3 years ago

a person mailing postcards earns a fixed amount for each postcard he mails yesterday his hourly wage was $14 an hour if he worke

Mariulka [41]

If he worked 5 hours and his rate is $14/hr, then he earned a total of $70.
He mailed 300 postcard, so each postcard mailed is $0.2333..

BTW, i actually think the question is incomplete, so this may actually be a wrong answer.

5 0

3 years ago

Read 2 more answers

Expand and simplify (x+9)(x-3)

Natasha_Volkova [10]

Answer:

x² + 6x-27

Step-by-step explanation:

(x+9)(x-3) (expand by distributive property)

= x(x) -3(x) + x(9) -3(9) (simplify)

= x² -3x+9x-27

= x² + 6x-27

4 0

3 years ago

The Sunny Days Apartment building has a cylindrical, above ground pool in the yard. The radius of the pool is 1.5 times its heig

dezoksy [38]

Answer:

5.54 feet.

Step-by-step explanation:

Let h be the height of the pool and r be the radius of the pool.

We have been given that volume of cylindrical pool in Sunny Days Apartment building is 1200 cubic feet.

We have been given that the radius of the pool is 1.5 times its height. We can represent this information in an equation as:

$r=1.5*h...(1)$

$\text{Volume of cylinder}=\pi r^2h$

Substituting equation (1) in volume formula we will get,

$\text{Volume of cylindrical pool}=\pi (1.5h)^2*h$

Substituting the given volume of pool in formula we will get,

$1200=\pi (1.5h)^2*h$

$1200=\pi*2.25*h^2*h$

$1200=\pi*2.25*h^3$

Let us divide both sides of our equation by 2.25 pi.

$\frac{1200}{2.25\pi}=\frac{\pi*2.25*h^3}{2.25\pi}$

$169.7652726=h^3$

Let us take cube root of both sides of our equation.

$\sqrt[3]{169.7652726}=h$

$5.537=h$

$h=5.537\approx 5.54$

Therefore, the height of the pool is approximately 5.54 feet.

6 0

3 years ago