Solve the problem.Each gallon of shingle stain covers 120 square feet. How many gallons are needed to cover 840 square feet?
A. 8 gallons
B. 5 gallons
C. 7 gallons
D. 6 gallons
Answer: C
Mathematics
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Find the volume by using polar coordinates.The region under the surface 
, and bounded by the planes 
and 
and the cylinder 
A. 
B. 
C. 
D. 
Mathematics
Rewrite the expression using the Distributive Property and simplify the result.2 ? (5k2 - 8)
A. 5k2 - 16 B. -80k2 C. 10k2 - 8 D. 10k2 - 16
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.(
+ 
)(
- 
)
A. 4
B. 20
C. 12 - 8
D. 12 + 2
Mathematics
Determine the rank of the matrix.
A. 5 B. 4 C. 3 D. 2
Mathematics