Simplify the expression.(-7x6y4z)2
A. 49x12y8z2
B. -49x12y8z2
C. 14x12y8z2
D. -7x8y6z
Answer: A
Mathematics
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Find the requested function value of ?.Find csc ?, if sin ? = 0.6870.
A. 1.376 B. 0.9454 C. 0.7280 D. 1.456
Mathematics
Perform the indicated operation without the use of a calculator and express each answer in scientific notation.
A. 4 × 10-1 B. 4 × 101 C. 4 × 1015 D. 4 × 10-15
Mathematics
Differentiate.y = 
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Find the Social Security tax and Medicare tax on the annual gross income of a self-employed individual. For a self-employed person, the FICA rate is 12.4% and the Medicare rate is 2.9%. Round to the nearest cent if needed.Roberta Beltman, freelance photographer, earned $30,199.36
A. $3,744.72, $875.78 B. $3,644.72, $775.78 C. $1,872.36, $875.78 D. $1,872.36, $437.89
Mathematics