Find the angle between the vectors u and v if 
and 
Round your answer to two decimal places.
A. 66.14°
B. 68.34°
C. 67.38°
D. 65.45°
E. 68.79°
Answer: C
Mathematics
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Find 
.y = (x2 + 4x)cos x
A. 
- (sin x) ln (x2 + 4x)
B. (x2 + 4x)cos x
C. (x2 + 4x)cos x
D. 
- (sin x) ln (x2 + 4x)
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Perform the indicated operations.(2x - 7)(x - 11)
A. x2 - 29x - 30 B. 2x2 - 30x + 77 C. 2x2 - 29x + 77 D. x2 + 77x - 29
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Find the y-intercepts for the parabola whose equation is given. If the y-intercepts are irrational, round your answers to the nearest tenth.y = 2x2 + 4x - 48
A. y-intercept (0, -48) B. y-intercept (0, 4) C. y-intercept (0, 48) D. y-intercept (0, -6)
Mathematics
Complete.2 mi = 
yd
A. 2,000
B. 10,560
C. 
D. 3,520
Mathematics