Use scientific notation to perform the following operations. Leave your answer in scientific notation.(4 × 104) × (2 × 102)
A. 8.0 × 107
B. 8.0 × 106
C. 8.0 × 108
D. 8.0 × 105
Answer: B
Mathematics
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Find the limit, if it exists.
A. 1 B. -1 C. 0 D. Does not exist
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Solve.|5 - x| = 2
A. {3, -7} B. {3} C. {7} D. {3, 7}
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Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = 
A. f(x) = -28x2 + 82, g(x) = 
B. f(x) = 
, g(x) = -28x2 + 82
C. f(x) = 
, g(x) = 
D. f(x) = 
, g(x) = x2
Mathematics
Solve the problem.Larry has $2600 to invest and needs $3100 in 20 years. What annual rate of return will he need to get in order to accomplish his goal? Round your answer to two decimal places, if necessary.
A. 3.27% B. 2.27% C. 1.27% D. 0.88%
Mathematics