Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 7i, v = 6j
A. 42; 42k
B. 42; k
C. 42; -k
D. 7; 6k
Answer: B
Mathematics
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Find the derivative.y = 10 - 5x2
A. 10 - 5x B. 10 - 10x C. -10x D. -10
Mathematics
Find the opposite, or additive inverse.-23
A. 
B. -23
C. 23
D. 0
Mathematics
Use the Intermediate Value Theorem to determine whether the polynomial function has a real zero between the given integers.f(x) = 2x3 - 10x - 3; between 2 and 3
A. f(2) = -7 and f(3) = 21; yes B. f(2) = -7 and f(3) = -21; no C. f(2) = 7 and f(3) = -21; yes D. f(2) = 7 and f(3) = 21; no
Mathematics
Identify the degree of the polynomial and list its coefficients.8x5 - 5x3 - 2x2 + 5
A. degree: 8 coefficients: -5, -2, 5 B. degree: 5 coefficients: 8, 5, 2, 5 C. degree: 11 coefficients: 8, -5, -2, 5 D. degree: 5 coefficients: 8, -5, -2, 5
Mathematics