9514 1404 393
Answer:
38 2/3 feet
Step-by-step explanation:
In shadow problems, the usual assumption is that object height and shadow length are proportional.
height/length = b/16 = 5.8/2.4 . . . . . for building height b
b = 16(5.8/2.4) = 38 2/3
The building is 38 2/3 feet tall.
x² - 16
Use the FOIL method here where
F = first
O = outer
I = inner
L = last
F = x * x = x²
O = -4 * x = -4x
I = 4 * x = 4x
L = -4 * 4 = -16
Combine the terms to get x² - 16.
look it up
x=722/69
PMA = 37
CMT = 101 - 54 =47
Total = 37 + 47 = 84
Answer: A. 84
