A cable railway had a 14-foot-diameter pulley to drive the cable (see the figure). In order to keep the cable cars moving at a linear velocity of 13 miles per hour, how fast would the pulley need to turn (in revolutions per minute)? (1 mi = 5,280 ft)
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If the answer needs rounding, round it to the nearest tenth.
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__________ rpm
What will be an ideal response?
26.0
Mathematics
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In a right triangle, 
. Find the value of 
.
What will be an ideal response?
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Use both properties of equality to solve the equation.-v - 24 = 15
A. 39 B. 9 C. -9 D. -39
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Solve.Paul must lift a 56.5-pound backpack a distance of 20 feet. Find the energy required to move the backpack.
A. 56.5 ft-lb B. 66.5 ft-lb C. 5.7 ft-lb D. 1130 ft-lb
Mathematics
Solve the problem.A bag contains 7 apples and 5 oranges. If you select 6 pieces of fruit without looking, how many ways can you get 6 apples?
A. 14 B. 35 C. 12 D. 7
Mathematics