Solve the problem. Use 3.14 for ?, if necessary.Find the area of the skating rink. Round to the nearest tenth.
A. 1720.3 sq yd
B. 1312.3 sq yd
C. 860.2 sq yd
D. 1268.2 sq yd
Answer: D
Mathematics
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Graph the polar equation.r = 2 cos ?
A. 
B. 
C. 
D. 
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Solve the equation.e4x - 1 = (e5)-x
A. 
B. {0}
C. 
D. 
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Solve the problem.Police use the formula s = 
to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.29 and a car skidded 300 feet, find the speed of the car, to the nearest mile per hour.
A. 51 mph B. 95 mph C. 2610 mph D. 280 mph
Mathematics
Identify the independent and dependent variables.s = 4a2
A. independent: s and a, dependent: 4 B. independent: s, dependent: a C. independent: a, dependent: s D. independent: 4, dependent: s and a
Mathematics