Simplify the algebraic expression.(8z + 10) - (3z - 8)
A. 5z - 18
B. 5z + 18
C. 5z + 2
D. 11z + 18
Answer: B
Mathematics
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Solve.The volume V of a gas varies inversely as the pressure P on it. The volume of a gas is 
under a pressure of 
What will be its volume under a pressure of 36 kg/cm2?
A. 140 cm3 B. 133 cm3 C. 315 cm3 D. 331 cm3
Mathematics
Use a power-reducing identity to find the exact value of the expression.sec2 (-112.5°)
A. 4 + 2
B. 8 - 4
C. 8 + 4
D. 4 - 2
Mathematics
Factor completely. If unfactorable, indicate that the polynomial is prime.(x + 2)2 - 9
A. (x + 11)(x - 7) B. (x + 1)(x - 5) C. x2 + 4x - 5 D. (x + 5)(x - 1)
Mathematics
Rewrite as a base to a power, if possible.
A. n-2 B. 6n2 C. n2 D. 2n2
Mathematics