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-BARSIC- [3]
3 years ago
11

A swimming pool has to be drained for maintenance. The pool is shaped like a cylinder with a diameter of 5 m and a depth of 1.4

m. Suppose water is pumped
out of the pool at a rate of 133
per hour. If the pool starts completely full, how many hours will it take to empty the pool?
Espanol
Use the value 3.14 for #, and round your answer to the nearest hour. Do not round any intermediate computations.

Mathematics
1 answer:
Korolek [52]3 years ago
6 0

Answer:

8 hours

Step-by-step explanation:

basic equation

Q (flow rate) = V (volume)/ t (time)

so to find the time we just rearrange the equation and become

t = V/Q

V of cylinder

V = πr²T

and r (radius) = ½ diameter

V = 3.14 x 5² x 1.4

V = 109.9 m³

if the Q is 13 m³/hour then

t = 109.9/13 = 8.453 hours

round to nearest hour = 8 hours

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3 years ago
The x3 was supposed to be an exponent not 3x
mote1985 [20]

Answer:

The value of x is 2\sqrt[3]{2}

Step-by-step explanation:

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Taking cube roots both sides to isolate x

x=\sqrt[3]{16}

Simplify the radical

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3 years ago
How to round to the nearest 1000 even if there is no thousands in the number given​
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3 0
2 years ago
Place the following linear equation in slope intercept form: 6x - 4y = 9
geniusboy [140]

Answer:

y = 3/2 x - 9/4

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3 0
2 years ago
Read 2 more answers
F f(x) = 3x + 2 and g(x) = x2 + 1, which expression is equivalent to (f circle g) (x)?
seraphim [82]

hi

f°g  mean apply  g(x) and  then use result of  g(x) as  "x" in f(x)

so as  g(x) = x² +1   and  f(x) = 3x+2

so if we call  g(x)   X  we have  

f( X) =  3 X +2

now we replace  " X"  for it's value

f(X) =  3 ( x² +1) +2

f(X) =  3x² +3 +2

f(X) = 3x² +5

so  f°g = 3x² +5

8 0
1 year ago
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