The least common multiple of 9,12,15 is 180
It is c.
I was going to tell you how I got the answer but it won't let me... message me an I'll let you know
Answer:
choice A. average rate of -3 feet/sec from 3 sec. to 5 sec
Step-by-step explanation:
f(x) = −x2 + 5x + 4 where f(x) represents the height, in feet, at x seconds
find average rate of change of f(x) from x = 3 to x = 5 seconds
find f(3) = - 3*3 + 5*3 + 4 = -9 + 15 + 4 = 10 feet.
find f(5) = -5*5 + 5* 5 + 4 = 4 feet.
average rate of change = (4 - 10)/(5 -3 ) = -6/2 = -3 feet/sec.
on average water falls 3 feet /sec from 3 to 5 seconds choice A.
0.0399 is equivalent to 3.99 × 10<span>⁻</span>²