Solve the problem.Find the radius of a circle in which a central angle of 
radian determines a sector of area 
meters. Round to the nearest hundredth.
A. 9.42 m
B. 177.62 m
C. 18.85 m
D. 13.33 m
Answer: D
Mathematics
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Factor by grouping.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Use scientific notation to solve the problem.Assume that the volume of the earth is 5 × 1014 cubic meters and the volume of a bacterium is 2.5 × 10-16 cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 2.0 × 10-30 bacteria B. 5.0 × 1031 bacteria C. 2.0 × 1030 bacteria D. 5.0 × 10-31 bacteria
Mathematics
Simplify.
A. 77
B. 7
C. 11
D. 23
Mathematics
Solve the problem.A rectangular yard is designed to have an area of 
Express the perimeter P as a function of the width w. Find 
P by evaluating the function for the following values of w (in m): 24.9, 24.99, 24.999, 25.1, 25.01, 25.001.
A. 115.1 m B. 57.8 m C. 115.7 m D. 115.6 m
Mathematics