Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A.
B.
C.
D.
Answer: A
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Solve the problem. Express your answer in scientific notation, and round to one decimal place. The speed of light is 1.86 × 105 miles/second. How far can light travel in one hour? Round to one decimal place.
A. 6.7 × 10-8 miles B. 6.7 × 108 miles C. 6.7 × 106 miles D. 6.7 × 109 miles
Solve the problem. Use an annual percentage rate table if necessary.Sarah Yost took out a 48-month fixed installment loan of $17,000 to open a gift shop. She began making monthly payments of $423.05. Sarah's business does better than expected and instead of making her 12th payment, Sarah decides to repay her loan in full. How much interest will Sarah save (use the actuarial method)?
A. $2205.29 B. $1907.97 C. $1926.35 D. $1872.84
Factor, if possible.y2 + 9y + 20
A. (y - 5)(y - 4) B. (y - 5)(y + 4) C. (y + 20)(y + 1) D. (y + 5)(y + 4)
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
+
)
A. 10
B. +
C.
D. 5 + 5