Solve.-y = 9
A. 0
B. -9
C. 9
D. -1
Answer: B
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Simplify by factoring. Assume that any variable in a radicand represents a positive real number.
A. x2y2
B. x2
C. xy
D. x2y5
Solve the problem.If the points P, Q, R, S, T, and U are equally spaced and collinear, then find the center and scale factor for the dilation taking 
to 
.P Q R S T U? ? ? ? ? ?
A. Center Q; scale factor 2 B. Center R; scale factor 2 C. Center P; scale factor 1/2 D. Center P; scale factor 2
A solution is an acid if its pH is less than 7 and a base if its pH is greater than 7. The pH is defined by 
where [H+] is the concentration of hydrogen ions in the solution. Use this information to answer the question.The concentration of hydrogen ions in a solution is approximately 10-7.6. What is the pH of the solution? Is the solution an acid or a base?
A. The pH is 7.6. The solution is an acid. B. The pH is -7.6. The solution is a base. C. The pH is -7.6. The solution is an acid. D. The pH is 7.6. The solution is a base.
Find the common difference d and the nth term an of the arithmetic sequence with the specified terms. 5th term is 0; 12th term is -35
A. d = -5; an = -5n + 25 B. d = -15; an = -15n - 5 C. d = -15; an = -15n + 25 D. d = -5; an = -5n - 20