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True [87]
3 years ago
11

A cylindrical water tank is being filled with a hose. The depth of the water increases by 1 1/4 ft per hour. How many hours will

it take for the water level in the tank to be 3 1/2 ft deep?
Mathematics
2 answers:
dezoksy [38]3 years ago
5 0
A water tank has the shape of an inverted right circular cone with an altitude of 12ft and a base radius of 6ft. If water is being pumped into the tank at a rate of 10 gal/min(1.337 f t3/min, approximate the rate at which the water level is rising when the water is 3 ft deep. h r 12 6 We know dv dt = 1.337, h = 3. We also have the relationship between h and r by using similar triangles. r h = 6 12 or that r = 1 2h V = 1 3πr2h = 1 3π 1 2h 2 h = 1 12πh3 dV dt = 1 4 πh2 ∗ dh dt now plug in the info and solve for dh dt Answer: dh dt = .1891f t/min
ANTONII [103]3 years ago
3 0
2 and 3/4s hours
I hope i helped! Feel free to mark brainliest!
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A bird dives into a river from a height of 450 cm above the
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Answer:

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Step-by-step explanation:

I hope this helps tho :) plz mark brainliest

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3 years ago
What is -2(3x+12y-5-17x-16y+4) simplified?
wel

Answer:

The answer is option b.

-2(3x+12y-5-17x-16y+4)

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5 0
3 years ago
If 4 students share 30 ft.² wall equally how many square feet of the wall will be painted by each student
Brut [27]

Answer:

7.5 ft²/student

Step-by-step explanation:

This is a "unit rate" problem.

30 ft²

------------------ = 7.5 ft²/student

 4 students

Each student will  paint 7.5 ft² of the wall.

3 0
3 years ago
The radius of a circle is 2.94cm. Which is closest to the area of the circle?
Marrrta [24]
Well you need to square 2.94 by 2 and then multiply by 3.14 to get your answer
5 0
3 years ago
Read 2 more answers
what is the total surface area of the garden in inches, feet and yards that is 70 ft long and 45 wide?
arlik [135]
So,

First, we will find the surface area of the garden in feet.
(70)(45) = 3150 square ft.

Next, to find the surface area of the garden inches, we need to recall the conversion rate between feet and inches.
1 ft. = 12 in.

So, multiply 3150 by 12.
(3150)(12) = 37,800 square in.

To find the surface area of the garden in yards, we need to recall the conversion rate between yards and feet.
1 yd. = 3 ft.

So, divide 3150 by 3.
\frac{3150}{3} = 1050\ square\ yd.

Area of the garden in inches: 37,800 square in.
Area of the garden in feet: 3150 square ft.
Area of the garden in yards: 1050 square yd.
3 0
4 years ago
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