Find the exact or approximate circumference of the circle, as indicated.Find the approximate circumference. Use 
for ?.
A. 2,024 yd
B. 325,864 yd
C. 1,012 yd
D. 506 yd
Answer: C
Mathematics
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics
Use the given graph of f(x) = ax2 + bx + c to solve the specified inequality.f(x) > 0
A. x > -3 B. x ? -3 C. All real numbers D. No solutions
Mathematics
Determine whether the pair of fractions is equivalent.
and 
A. equivalent B. not equivalent
Mathematics
Write the expression in the standard form a + bi.i21
A. -i B. i C. -1 D. 1
Mathematics