Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 8i - 2j, w = 3i - 6j
A. 50.4°
B. 77.5°
C. 49.4°
D. 54.7°
Answer: C
Mathematics
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Find the solution to the system of equations by the substitution method.
A. (5, 7) B. (4, 8) C. (-4, 7) D. (8, 4)
Mathematics
Solve the problem.Using the following floor plan, find a path that begins and ends in room F and passes through each doorway exactly once.
A. F ? A ? G ? B ? C ? D ? G ? E ? F B. No such route exists. C. F ? E ? G ? B ? C ? D ? G ? A D. F ? A ? G ? D ? C ? B ? G ? A ? F
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Find the exact value of the expression.sin 20° cos 40° + cos 20° sin 40°
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Use 3.14 as an approximation for ? where appropriate.A rectangular box which is 7 in. by 6 in. by 5 in. is to be wrapped in brown paper. How much paper is required?
A. 210 in.2 B. 184 in.2 C. 214 in.2 D. 107 in.2
Mathematics