Find the indicated matrix.Let A = 
and B = 
. Find A - B.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Decide whether the statement makes sense. Explain your reasoning.If you have $5, then you will buy a hot dog; and, contrapositively, if you don't have $5, then you won't buy a hot dog. (Hint: focus on whether the word "contrapositively" is used correctly.)
What will be an ideal response?
Mathematics
Use differentiation to determine whether the integral formula is correct.
dx = -x cos x + sin x + C
A. No B. Yes
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin(2?).
A. 
B. 
C. - 
D. - 
Mathematics
Find the greatest common factor of the list of items.8, 18, and 20
A. 8 B. 4 C. 1 D. 2
Mathematics