Solve the problem.A circular hole is filled with concrete to make a footing for a load-bearing pier. The hole measures 16 inches across and requires 1.6 bags of concrete in order to fill it to ground level. What is the depth of the hole? Round your answer to the nearest inch. (One bag of concrete, when mixed with the appropriate amount of water, makes 1800 in.3 of material.)
A. 14 in.
B. 11 in.
C. 20 in.
D. 18 in.
Answer: A
Mathematics
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= 
A. 0.17 B. 1.5 C. 6 D. 3
Mathematics
Solve the equation.(x - 5)(x + 8) = 0
A. {5, 8} B. {-5, 8} C. {±5, ±8} D. {5, -8}
Mathematics
The letters of the word "SCRAMBLE" are scrambled and arranged in a random order.In the situation above, how many different arrangements are possible?
Fill in the blank(s) with the appropriate word(s).
Mathematics
If ? is an acute angle and 
, determine sin ?.
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics