Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 14 in.
B. 221 in.
C. 21 in.
D. 442 in.
Answer: C
Mathematics
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Solve the problem.A ladder is slipping down a vertical wall. If the ladder is 17 ft long and the top of it is slipping at the constant rate of 5 ft/s, how fast is the bottom of the ladder moving along the ground when the bottom is 
from the wall?
A. 9.4 ft/s B. 0.63 ft/s C. 1.9 ft/s D. 10.6 ft/s
Mathematics
Find the indicated rate.A new hybrid car can travel 255 miles on 15 gallons of gasoline. What is the hybrid's unit rate in miles per gallon?
A. 270 mi/gal B. 255 mi/gal C. 17 mi/gal D. 3825 mi/gal
Mathematics
Insert ? or ? in the blank to make the statement true.{7, 8, 9, 12} 
{7, 11, 9, 10, 8, 12}
A. ? B. ?
Mathematics
Evaluate the function.Find f(-3) when f(x) = 3x - 1
A. -8 B. 2 C. -10 D. -6
Mathematics