Multiply.(8x5 + 4x4)(-7x7)
A. -56x12 + 4x4
B. -84x7
C. -56x12 - 28x11
D. -84x12 - 84x11
Answer: C
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Solve the problem.If a group of 284 people is to be split into equal-sized subgroups of at least two people and no more than 30 people, what are the possible group sizes?
A. 2 and 4 B. 2, 3, and 4 C. 2 and 28 D. 3 and 4
Solve the problem.The number of quarters needed to double an investment when a lump sum is invested at 4%, compounded quarterly, is given by n = 
. In how many years will the investment double, to the nearest tenth of a year?
A. 8.7 yr B. 34.8 yr C. 69.7 yr D. 17.4 yr
Complete the statement so that the indicated property is illustrated. Simplify the answer, if possible.8(-2 + z) =
A. 8(-2) + 8z = -16 + 8z B. 8(-2) + z = -16 + z C. (8 ? -2) ? z = -16 z D. 8(z + (-2))
Solve the problem.1 - i is a solution of a quadratic equation with real coefficients. Find the other solution.
A. 1 + i B. -1 - i C. 1 - i D. -1 + i