The average rate of elevation change in feet per second if a submarine dives 440 feet in 20 a) -2.20 b) -22 c) 22 d) 440

b)

Step-by-step explanation:

We have been given that a submarine dives 440 feet in 20  seconds. We are asked to find the average rate of elevation change in feet per second.

Since the submarine dives below the surface of water, so its elevation would be negative feet.

To find average rate of change, we will divide total elevation by by 20.

Therefore, the average rate of elevation change is feet per second.

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.

hint: which coefficient is a multiple of 360°?

step-by-step explanation: