A hot air balloon can hold 75,000 cubic feet of air. It is being inflated at a rate of 4,000 cubic feet per minute. The total cubic feet of air (t) is a function of the time in minutes t. Write a function to represent the total amount of air. Then determine the total amount of air in 5 minutes.

i think it is 18

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a