An elevator is 180 feet above the first floor. Each second it descends 12 feet.
a. What integer is the change in the height of the elevator each second?
b. Copy and complete the table.
c. Estimate how many seconds it takes the
elevator to get to the first floor. Explain
your reasoning.
d. From the first floor, it takes 4 seconds to reach the basement floor. What
is the height of the basement floor with respect to the first floor?
Time 3 sec 6 sec 9 s

9 sec

Step-by-step explanation:

because it decends 12 feet evry second so the answer is nine sec

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet