Find the angle between u and v in radians.u = 10i, v = 2i - 6j
A. 1.25
B. 1.57
C. 0.32
D. 1.43
Answer: A
Mathematics
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Evaluate the integral.
A. 2 cos
+ C
B. - 
cos
+ C
C. -2 sin
+ C
D. 
sin
+ C
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 
, g(x) = 
A. Yes; Exclude the value {-4} B. No C. Yes
Mathematics
Perform the indicated operation. Express the answer in scientific notation.(8.9 × 102)(5.1 × 10-2)
A. 45.39 × 100 B. 45.39 × 10-4 C. 45.39 D. 4.539 × 101
Mathematics
Solve the quadratic equation using completing the square.a2 + 2a - 3 = 0
A. {
}
B. {1, -3}
C. {-1, 3}
D. {0, -3}
Mathematics