Use the quadratic formula to solve the quadratic equation.7 - x2 = 8x
A. 4 + 
B. -4 ± 
C. -4 ± 2
D. -1 ± 
Answer: B
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Solve the problem.Students in Mr. Mason's classes collected items from different countries. The data show how many of each item one class collected. Make a bar graph of these data showing frequency on the vertical axis.
What will be an ideal response?
Rewrite the given expression as a single logarithm. Assume that all variables are defined in such a way that variable expressions are positive and bases are positive numbers not equal to 1.logx x + logx y
A. logx (x + y)
B. logx x ? logx y
C. logx 
D. logx xy
Find the center (h, k) and radius r of the circle. Graph the circle.x2 + y2 + 8x + 4y - 5 = 0 
A. (h, k) = (4, -2); r = 5
B. (h, k) = (4, 2); r = 5
C. (h, k) = (-4, -2); r = 5
D. (h, k) = (-4, 2); r = 5
Multiply to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.2
? 23
A. 61
B. 60
C. 51
D. 46