Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 8i + 4j, w = -7i + 7j
A. 120.5°
B. 108.4°
C. 161.6°
D. 109.4°
Answer: B
Mathematics
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. ln 
+ 
ln 
+ tan-1 
+ C
B. 4 ln 
- 
ln 
- tan-1 x + C
C. 4 ln 
+ 
ln 
+ 
tan-1 
+ C
D. 4 ln 
+ 
ln 
+ sin-1 
+ C
Mathematics
Provide an appropriate response. Find the distance between the points (1, -2) and (-5, -6).
A. 7.211 B. 10 C. 4.472 D. 8.944
Mathematics
Find the solution.4x + 9 = 25
A. 6 B. 5 C. 3 D. 4
Mathematics
Simplify. Assume that all radicands are nonnegative.2
(
- 
)
A. 4 sin ? (1 + 39
)
B. 4 cos ? 
+ 3 sin2 ?
C. 3 cos2 ? 
+ 2 sin ?
D. 4 sin ? (1 - 3 
)
Mathematics