Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.Runners in a 28 km race run how many miles?
A. 29.7 mi
B. 45.1 mi
C. 14.0 mi
D. 17.4 mi
Answer: D
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Find the surface area or volume.Use numerical integration with a programmable calculator or a CAS to find, to two decimal places, the area of the surface generated by revolving the curve 
about the x-axis.
A. 7.21 B. 1.15 C. 2.29 D. 14.42
Rewrite the quadratic function in standard form by completing the square.f(x) = x2 - 12x
A. f(x) = (x - 6)2 - 36 B. f(x) = (x + 12)2 - 12 C. f(x) = (x + 6)2 - 6 D. f(x) = (x - 12)2 - 144
Find the x- and y-intercepts. Then graph the equation.x + 5y = 0
A. (0, 0); (0, 0)
B. (0, 0); (0, 0)
C. (0, 0); (0, 0)
D. (0, 0); (0, 0)
Solve the problem.You drive 115 miles along a scenic highway and then take a 36-mile bike ride. Your driving rate is 5 times your cycling rate. Suppose you have no more than a total of 4 hours for driving and cycling. Let x represent your cycling rate in miles per hour. Use a rational inequality to determine the possible values of x.
A. x ? 14.8 mph B. x ? 30.6 mph C. x ? 14.8 mph D. x ? 56.1 mph