Find the area of the shaded region of the figure. Use 3.14 for ? as necessary.
A. 50 ft2
B. 10 ft2
C. 100 ft2
D. 20 ft2
Answer: A
Mathematics
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Find the interval of convergence of the series.
A. 4 ? x < 6
B. -3 < x < 13
C. 
< x < 
D. -3 ? x ? 13
Mathematics
Sets A, B, and C are given. Find the indicated set. A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}A ? C
A. {4, 6, 7, 9} B. {-1} C. {-3, -1, 2, 5, 7, 9} D. {-8, -3, -1, 2, 4, 5, 9}
Mathematics
Use a half-angle formula to find the exact value of the expression.tan 112.5°
A. -
- 1
B. 
- 1
C. -
+ 1
D. 
+ 1
Mathematics
Factor the trinomial completely.s2t2 - 3st + 19
A. (st - 19)(st - 1) B. (st + 19)(st - 1) C. (st - 19)(st + 1) D. Prime
Mathematics