Factor completely.49x2 - 70xy + 25y2
A. (7x + 5y)2
B. Prime
C. (7x - 5y)2
D. (7x - 5y)(7x + 5y)
Answer: C
Mathematics
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Factor by grouping.ra2 + rb2 - 8a2 - 8b2
A. (a2 - b2)(r + 8) B. (a2 - 8)(r + b2) C. (a2 + 8b2)(r - 1) D. (a2 + b2)(r - 8)
Mathematics
Solve.x + 
= 
A. 
B. 
C. 
D. {1}
Mathematics
Find the LCM.24, 54, and 27
A. 216 B. 72 C. 54 D. 108
Mathematics
Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If V = 166.7 in.3 when 
and P = 15 lb/in.2, what is the volume when 
and P = 10 lb/in.2?
A. 380.0 in.3 B. 350.0 in.3 C. 360.0 in.3 D. 330.0 in.3
Mathematics