The level of water in a draining pool can be modeled with the function below: d(t) = 12(.72)^t
d = depth of water in feet
t = amount of time draining in days

Question:
Max claims that the pool is draining at a rate of 1.36% per hour. Is he correct? Explain.

find the persentage

Step-by-step explanation:

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form