Use a sum-to-product identity to rewrite the expression.cos 
- cos 
A. -2
B. -2
C. -2
D. -2
Answer: B
Mathematics
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Use the Remainder Theorem to find the remainder.f(x) = 2x4 + 7x3 + 3x2 - 6x + 31 is divided by x + 4
A. -9 B. 857 C. 167 D. 0
Mathematics
Use the graph to determine whether the data represent direct variation, inverse variation, or neither.
A. Neither B. Inverse C. Direct
Mathematics
Provide an appropriate response.Vertical analysis is the comparison of the same account balance for two different years.
A. True B. False
Mathematics
Write four additional terms of the geometric sequence.6, -18, 54, . . .
A. -162, -486, -1458, -4374 B. -162, 486, -1458, 4374 C. 162, -486, 1458, -4374 D. 162, 486, 1458, 4374
Mathematics