Solve the equations.-4x2 = -28
A. ±7
B. 8
C. ±
D. 14
Answer: C
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The figure shows an angle ? in standard position with its terminal side intersecting the unit circle. Evaluate the indicated circular function value of ?.Find sin ?.
A. 
B. 
C. - 
D. - 
Find the payment necessary to amortize the loan. Round to the nearest cent.$1000, 9% compounded annually,18 annual payments
A. $114.21 B. $117.05 C. $74.26 D. $111.73
Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-?, 0); Decreasing on (-?, 0) B. Increasing on (0, ?); Decreasing on (-?, 0) C. Increasing on (?, 0); Decreasing on (0, -?) D. Increasing on (-?, 0); Decreasing on (0, ?)
Solve the system by elimination.-5x + 7y = 56 2x + 4y = 32
A. {(0, 8)} B. ? C. {(0, 9)} D. {(-1, 9)}