Simplify.
A. 
B. 10x - 60y2
C. 
D. 
Answer: C
Mathematics
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Solve.A 12-foot ladder is leaning against a house with the base of the ladder 5 feet from the house. How high up the house does the ladder reach? If necessary, round to the nearest tenth of a foot.
A. 13 ft B. 10.9 ft C. 7 ft D. 10.6 ft
Mathematics
Divide. 
A. 1,336 R 1 B. 1,334 C. 1,334 R 1 D. 1,336
Mathematics
Solve the problem.Johnny must pay a 5% fee if he changes his airline ticket. Estimate the amount of the fee if the ticket he plans to change cost $439.87.
A. $2200.00 B. $220.00 C. $22.00 D. $8800.00
Mathematics
Match the graph to a set of parametric equations.
a. witch of agnesi ;
b. lissajous curve ;
c. involute of circle :
d. evolute of ellipse ;
e. serpentine curve ;
Mathematics