Solve the problem.The algebraic expression 
describes the duration of a storm, in hours, whose diameter is d miles. Use a calculator to determine the duration of a storm with a diameter of 12 miles. Round to the nearest hundredth.
A. 2.91 hours
B. 0.77 hours
C. 0.24 hours
D. 41.57 hours
Answer: A
Mathematics
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Solve the problem.An honest coin is tossed ten times . The probability of tossing two heads and eight tails is
A. 
.
B. 
.
C. 
.
D. 
.
E. none of these
Mathematics
Add or subtract.
+ 
A. 
B. 
C. 
D. 
Mathematics
Graph the function by first finding the relative extrema.f(x) = x3 - 2x2
A. 
B. 
C. 
D. 
Mathematics
Add.(2r2s2 + 3r2s - 7rs) + (7r2s2 - 2r2s + 7rs - 4)
A. 9r2s2 + 5r2s - 14rs - 4 B. 9r2s2 + 5r2s + 14rs + 4 C. 9r2s2 + r2s - 4 D. 9r2s2 + r2s - 14rs - 4
Mathematics