Find the magnitude of the indicated vector.If v = 3i + 6j, find the magnitude of -10v.
A. 30
B. 30
C. -30
D. 30i
Answer: B
Mathematics
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Solve.4x3 - 11x2 ? 20x
A. 
? [0, 4]
B. [0, 4]
C. 
? [4, ?)
D. 
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Factor by grouping.72 - 9t - 8p + tp
A. (8 - t)(9 + p) B. (8 + t)(9 - p) C. (8 - t)(9 - p) D. (8 + t)(9 + p)
Mathematics
Find the area of the SAS triangle ABC. If necessary, round the answer to two decimal places.A = 30°, b = 10 yd, c = 9 yd
A. 38.97 sq yd B. 40.97 sq yd C. 20.5 sq yd D. 22.5 sq yd
Mathematics
Solve the equation.log2(7x - 4) = log2(3x + 5)
A. 1
B. 
C. ?
D. 
Mathematics