Determine the direction angle ? of the vector, to the nearest degree.r = 2i + 6j
A. 72°
B. 252°
C. 198°
D. 18°
Answer: A
Mathematics
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Evaluate the integral.
A. 96 B. 72 C. 36 D. 48
Mathematics
Find the absolute extreme values of the function on the interval.F(x) = - 
, 0.5 ? x ? 5
A. absolute maximum is 
at x = 
; absolute minimum is -12 at x =5
B. absolute maximum is - 
at x = 5; absolute minimum is -12 at x = 
C. absolute maximum is - 
at x = 5; absolute minimum is -12 at x = - 
D. absolute maximum is - 
at x = 
; absolute minimum is -12 at x = -5
Mathematics
Add.(4x2 - 6x + 5) + (2x2 - 6x - 8)
A. 6x2 - 6x - 3 B. 6x4 - 12x2 - 3 C. 8x2 - 6x - 3 D. 6x2 - 12x - 3
Mathematics
Find the product of the complex numbers. Leave answer in polar form.z1 = 
z2 = 
A. 3
B. 3
(cos 0 + i sin 0)
C. 3
D. 3
(sin 0 + i cos 0)
Mathematics