Find the exact value of the expression.
A. 
B. 
C. 
D. 2
Answer: A
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Use spherical coordinates to find the volume of the indicated region.the region enclosed by the cone 
between the planes 
and 
A. 
?
B. 
C. 
D. 
?
Solve the problem.A company wants to hire a software engineer, an administrative assistant, and a sales representative. There are 4 possible candidates for the position of software engineer, 4 for the position of administrative assistant, and 3 for the position of sales representative. How many ways are there to choose the three people who will be hired?
A. 11 B. 64 C. 24 D. 48
Solve by the substitution method.4x + 6y = 02x + 3y = 0
A. {(9, -6)} B. ? C. {(9, -5)} D. {(8, -5)}
Use a calculator to perform the operation. Express your answer in scientific notation.0.0000725(0.00473)(2,450,000,000)
A. 8.40 × 10-14 B. 8.40 C. 8.40 × 102 D. 8.40 × 107