Find the product or quotient. Write the answer in standard form.(8 - 7i)(4 + 6i)

A. 74 - 20i
B. -10 - 76i
C. 74 + 20i
D. -42i2 + 20i + 32


Answer: C

Mathematics

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A.
B.
C.
D.

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Solve the problem.A person plans to invest $10,000 in a CD at 6% annual interest and in a mutual fund that has a 3-year average annual interest of 11%. Let x and y represent the money (in dollars) invested in the CD and the mutual fund, respectively. How much money should be invested in each account to earn a total of $800 in one year?

A. $6000 invested at 6%; $4000 invested at 11% B. $4000 invested at 6%; $6000 invested at 11% C. $7000 invested at 6%; $3000 invested at 11% D. $5000 invested at 6%; $5000 invested at 11%

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A hose can fill a swimming pool in 6 hours. Another hose needs 3 more hours to fill the pool than the two hoses combined. How long would it take the second hose to fill the pool? ?

A. 6 hours B. 11 hours C. 12 hours D. 3 hours E. 9 hours

Mathematics

Find the product.-13(0)

A. -13 B. 13 C. 1 D. 0

Mathematics