Perform the indicated matrix operations.Let B = 
. Find -2B.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the half-angle formulas to evaluate the given function.sin 
A. 0.6088 B. 0.3660 C. 0.9659 D. 0.2588
Mathematics
Find all solutions to the equation in [0°, 360°). 
cot ? = 1 - 
csc ?
A. {120°} B. {60°, 120°, 240°, 300°} C. {240°, 300°} D. No solution
Mathematics
Solve for x.2x = 16
A. x = 3 B. x = 8 C. x = 4 D. x = 5
Mathematics
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100
Mathematics