Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 2i + 3j, w = 3i - 5j
A. 87.3°
B. 177.3°
C. 42°
D. 115.3°
Answer: D
Mathematics
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State the conjugate of the given binomial.2x + 5
A. 
B. - 2x + 5
C. - 2x - 5
D. 2x - 5
Mathematics
Simplify the square root.
A. w4 B. w6 C. -w4 D. |w4|
Mathematics
Solve the problem.A restaurant bill of $86.54 was shared equally by 4 people. How much was each person's share? Round your answer to the nearest cent.
A. $22.75 B. $21.75 C. $22.64 D. $21.64
Mathematics
Solve the problem.The annual sales of a company's best-selling appliance can be modeled by a linear function. Suppose that the sales, in dollars, were 8500 in 1997 and 50,000 in 2002. Find a linear function for annual sales, S(x), letting 
represent 1997.
A. S(x) = 41,500x + 50,000 B. S(x) = 8300x + 8500 C. S(x) = 8300x + 50,000 D. S(x) = 41,500x + 8500
Mathematics