Answer:
43.17 ft/s
Step-by-step explanation:
Let the height of the wall is y.
distance of wall from light is 20 feet.
y = 20 tanθ .... (1)
time period, T = 3 second

Differentiate equation (1) with respect to t.


dy/dt = 20 x 2.16
dy/dt = 43.17 ft/s
This is one of those questions where there's a list of choices that goes along with it,
but you're not sharing the list.
The product of (2x + 5) and (x - 3) is (2x² - x - 15) . That may be useful.
Answer:
c
Step-by-step explanation:
-7.5 is less than 6.5
Answer:
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