Solve the problem.The rear wheel of a lawn tractor has a 19-inch radius. Find the angle (in radians) through which a wheel rotates in 29 seconds if the tractor is traveling at a speed of 12 miles per hour? Round to the nearest tenth.
A. 322.4 radians
B. 18.3 radians
C. 1,160,488.4 radians
D. 138.4 radians
Answer: A
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Use differentiation to determine whether the integral formula is correct.
dx = 
+ C
A. Yes B. No
Solve the problem.In a certain town the annual consumption, b, of beef (in pounds per person) can be estimated by 
where t is the number of years since 2010. Find and interpret the t-intercept of the graph of this function.
A. 34; If this trend continues, the annual consumption of beef in this town will be zero pounds per person in the year 2078. B. 68; The annual consumption of beef in this town was 68 pounds per person in 2010. C. 34; The annual consumption of beef in this town was zero pounds per person in 2010. D. 68; If this trend continues, the annual consumption of beef in this town will be zero pounds per person in the year 2078.
In retailing, the retail price P of an item can be computed using the equation P = C + M, where C is the wholesale cost of the item and M is the amount of markup.A retailer sells a game for $49. If his wholesale cost for the game was $26, what was his markup?
A. $24 B. $22 C. $75 D. $23
Determine whether the parabola opens upward or downward.y = x2 + 2x - 5
A. upward B. downward