Solve.While walking, Joe's heart beats 5,010 times in 60 minutes. What is the rate in beats per minute?
A. 0.012 beats/min
B. 86.8 beats/min
C. 77.7 beats/min
D. 83.5 beats/min
Answer: D
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Name the curve with the given polar equation. If it is a conic, give its eccentricity.r = 46 cos ?
A. Horizontal line passing through (0, 46) B. Vertical line passing through (46, 0) C. Circle of radius 23 and center (23, 0) D. Circle of radius 23 and center (0, 23)
Solve.A house recently sold for $142,390. The commission rate on the sale is 5.5%. If a real estate agent is to receive 60% of the commission, find the amount received by the agent.
A. $46,988.70 B. $4,698.87 C. $46.99 D. $469.89
Use the definition of equality of complex numbers to find the real numbers x and y such that the equation is true.x - 5i = 7 + yi
A. x = 7, y = 5 B. x = -7, y = 12 C. x = 7, y = -5 D. x = -7, y = -2
Solve the problem.A force of 
will stretch a rubber band 
. Assuming Hooke's law applies, how much work is done on the rubber band by a 
force?
A. 0.135 J B. 0.015 J C. 1350 J D. 0.045 J