Multiply.(3 - 6i)(4 + 3i)
A. -6 - 33i
B. 30 + 15i
C. -18i2 - 15i + 12
D. 30 - 15i
Answer: D
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Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y varies directly with x. When x = 3.5, then y = 0.7.
A. k = 0.2; y = 0.2x B. k = 0.7; y = x - 2.8 C. k = 0.7; y = 0.7x D. k = 5; y = 5x
Use synthetic division to find the quotient and the remainder.(2x3 + 3x2 + 4x - 10) ÷ (x + 1)
A. Q(x) = (2x2 + 5x + 9); R(x) = 1 B. Q(x) = (2x2 + 5x + 9); R(x) = -1 C. Q(x) = (2x2 + x + 3); R(x) = 13 D. Q(x) = (2x2 + x + 3); R(x) = -13
Find the indicated term.$1000, $1060, $1123.60, . . . ; the 8th term
A. $1503.63 B. $8480 C. $1593.85 D. $1418.52
Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (?, 0); Decreasing on (0, -?) B. Increasing on (-?, 0); Decreasing on (0, ?) C. Increasing on (0, ?); Decreasing on (-?, 0) D. Increasing on (-?, 0); Decreasing on (-?, 0)