In physics, pressure is the amount of force exerted on a surface per unit area, P=F/A .The pressure, in atmospheres (atms), of a liquid on the circular base of a bucket is represented by the composite function (P ∘ A) (r), where P (A) = 375 / A and A (r) = pi r^2 What is the domain of the composite function? a. {all real numbers}
b. {r|r≠0}
c. {r|r>0}
d. {r|r<0}

{r|r>0}

Step-by-step explanation:

Pressure is the amount of force exerted on a surface per unit area, P=F/A.

The pressure, in atmospheres (atms), of a liquid on the circular base of a bucket is represented by the composite function PoA(r), where P(A) =  375 / A and A (r) = pi r²

We know that the domain is the set of input values.

Pressure,

At r = 0, it becomes not defined.

It means that r can be any value that is greater than 0. Hence, the correct option is (c). i.e. {r|r>0}

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Step-by-step explanation:

The volume of a cubic box with side length of s inches can be calculated using the following formula

If the initial side length was 3 inches and the customer asked Simon to increase each one of the sides of the box by one inch, then the new side lengths now become 4 in (3+1 = 4)

Therefore the final and new volume is

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