Simplify by combining like terms.17.2x - 14.6 - 9.7x + 20.2
A. 13.1x
B. 7.5x + 6.6
C. 7.5x + 5.6
D. 8.5x + 5.6
Answer: C
Mathematics
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Find a symbolic representation for f-1(x).f(x) = 
A. f-1(x) = (x - 9)2
B. f-1(x) = 
C. f-1(x) = x2 + 9, x ? 0
D. Not a one-to-one function
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 = 352.0 in.3 when T = 320° and P = 10 lb/in.2, what is the volume when T = 280° and P = 15 lb/in.2?
A. 185.3 in.3 B. 245.3 in.3 C. 175.3 in.3 D. 205.3 in.3
Mathematics
Subtract.0 - 7
A. 
B. -7
C. 7
D. 0
Mathematics
Solve for the indicated variable.logx (z + y) = logx(2z - 4), for y
A. y = z - 4
B. y = 
C. y = logx(z - 4)
D. y = 
Mathematics