Solve the problem.The radius of a right circular cone is given by the formula 
, where V is the volume and h is the height. If the volume is 2281 cubic inches and the height is 13 inches, what is the radius? Use 3.14 for ?, and round your answer to the nearest tenth of an inch.
A. 0.1 inches
B. 7.5 inches
C. 12.9 inches
D. 13.6 inches
Answer: C
Mathematics
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Use the quadratic formula to solve the equation. Simplify any radicals.12y2 + 35y + 25 = 0
A. 
B. 
C. 
D. 
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Answer the question.Estimate the error if e-4x2 is approximated by 1 - 4x2 + 
in the integral of 
dx.
A. 
B. 
C. 
D. 
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Solve problems using a calculator.Balance this checkbook by finding the closing balance as of December 10.DateBalanceWithdrawalsDepositsNov. 5$429.87??Nov. 7?$15.78?Nov. 18?$85.41?Nov. 24??$50.00Nov. 25?$9.12?Dec. 2??$188.34Dec. 7?$467.51?Dec. 10? ??
A. $90.79 B. $90.25 C. $90.39 D. $90.65
Mathematics
Solve the equation by factoring.49x2 + 84x + 27 = 0
A. 
B. 
C. 
D. 
Mathematics