Find the angle between u and v in radians.u = 2j - 9k, v = 9i - 10j - 4k
A. 1.57
B. 0.12
C. 1.51
D. 1.45
Answer: D
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Find y".y = 
A. - 
B. 
C. - 
D. - 
Solve the problem.Suppose that h is continuous and that 
= 2 and 
Find 
and
A. 10; -10 B. 6; -6 C. -10; 10 D. -6; 6
Solve the problem.Maxwell's theory of electromagnetic waves established that electromagnetism moved through space in waves. Under certain conditions, an equation that Maxwell used to explain the motion of such waves would take the form 
where ? is the angle of incidence of the original wave, ? is the angle of incidence of the wave when reflected, A is the amplitude of the original wave, and B is the amplitude of the wave when reflected. Find the value of 
when 
-4.0px;" /> and 
Round to four decimal places.
A. 0.3417
B. -0.9245
C. 0.4789
D. -0.3492
Factor by grouping.cy + y - c - 1
A. (y + 1)(c + 1) B. (y + 1)(c - 1) C. (y - 1)(c + 1) D. (y - 1)(c - 1)