Evaluate the expression according to the order of operations.8 ? 7 + 21 ÷ [8 - (3 + 2)]
A. 64
B. 63
C. 65
D. 62
Answer: B
Mathematics
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Graph the polar equation.r = -5 sin ?
A. 
B. 
C. 
D. 
Mathematics
Solve the right triangle. Round results to an appropriate number of significant digits.B = 25.7°, c = 0.494 in.
A. A = 64.3°, b = 0.445 in., a = 0.214 in. B. A = 64.3°, b = 0.238 in., a = 0.445 in. C. A = 64.3°, b = 0.238 in., a = 0.214 in. D. A = 64.3°, b = 0.214 in., a = 0.445 in.
Mathematics
Graph the function.y = -x2 + 3
A. 
B. 
C. 
D. 
Mathematics
Write the improper fraction as a mixed or whole number.-
A. -146
B. -
C. -148
D. -21
Mathematics