3 years ago

Helpppp plz I don't get it

Mathematics

1 answer:

IgorC [24]3 years ago

4 0

Get what? . ,., d sswkwkkskele

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An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 4 ft long with a diameter of 2.2 ft. S

gavmur [86]

Answer:

$8\:\mathrm{minutes}$

Step-by-step explanation:

The volume of a cylinder is given as:

$r^2\cdot\pi\cdot h$

Since the diameter is $2.2$ , the radius is $\frac{2.2}{2}=1.1$ .

Therefore, the volume of this cylinder is:

$1.1^2\cdot 3.14\cdot 4=15.1976\:\mathrm{ft^3}$ , using $\pi=3.14$ as requested in the problem.

Since the tank is emptied at a constant rate of $1.5\:\mathrm{ft^3\:per\:minute}$ , it will take

$\frac{15.1976}{1.5}=7.5988=\fbox{$8\:\mathrm{minutes}$}$ to empty the tank.

8 0

3 years ago

This is confusing very confusing for no reason

Aneli [31]

Answer:

I'm pretty sure it's 31

Step-by-step explanation:

perimeter you add all the sides

3 0

2 years ago

A figure is created by using four semicircles and a rectangle. which is closest to the area of the figure?

Katena32 [7]

Step-by-step explanation:

area of rrctangle:

12×8= 96cm²

now if rectangle dissapears and then we "glue" what's left, we gonna get two circles

area of circle which gas diameter of 12cm( so radius will be 6cm)will be

πr²=36π≈113.04

another circles radius is 4cm,so area is:

16π≈50.25

sum of all areas: S≈96+113.04+50.25≈259.28cm2

7 0

3 years ago

58.132 nearest hundredth

Schach [20]

Answer:

58.13

Step-by-step explanation:

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2 years ago

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Which comes first? Intermediate algebra, or algebra?

xxTIMURxx [149]

Answer

Algebra

Step-by-step explanation:

Intermediate is the same as algebra 2

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3 years ago

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