Complete.7040 yd = 
mi
A. 1
B. 7
C. 4
D. 21,120
Answer: C
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (10 - 2t)i + (1 + 9t)j + (6t - 1)k, 9 ? t ? 10
A. 2299 B. 209 C. 11 D. 121
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Solve.
= 7p
A. p = - 
B. p = 
C. p = 
D. p = 
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4(t - sin t), y= 4(1 - cos t), 0 ? t ? 4? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.One cook can make enough food for 350 people a night. How many cooks are needed to feed 1400 people a night?
A. 4 cooks B. 3 cooks C. 5 cooks D. 2 cooks
Mathematics