Write the English phrase as an algebraic expression. Let the variable x represent the number.one less than a number
A. x + 1
B. 1 - x
C. 
D. x - 1
Answer: D
Mathematics
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Factor the expression completely.pV + 
- pb - 
(gas laws)
A. 
(V - 
)
B. 
(V - b)
C. 
(V + b)
D. Cannot be factored.
Mathematics
? is an acute angle and sin ? is given. Use the Pythagorean identity sin2 ? + cos2 ? = 1 to find cos ?.sin ? = 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated clock arithmetic.4 ? 2 (12-hr clock)
A. 8 B. Does not exist C. 2 D. 12
Mathematics
Solve the problem.A number is increased by 14% to 847. Find the original amount. Round to the nearest hundredth.
A. 847.00 B. 965.58 C. 842.98 D. 742.98
Mathematics