Identify the vertex of the given parabola.f(x) = x2 - 6
A. (0, 6)
B. (0, -6)
C. (6, 0)
D. (1, 0)
Answer: B
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Suppose that a triangle has legs a and b and hypotenuse c, as illustrated in the figure. Then these values satisfy 
Use the Pythagorean Theorem as described above to find the value of x in the figure.
A. 5 B. -7 C. -5 D. 7
Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The manager of an electrical supply store measured the diameters of the rolls of wire in the inventory. The diameters of the rolls (in m) are listed below.0.665?0.565?0.422?0.426?0.395?0.407?0.321
A. 0.426 mm B. 1.5457 mm C. 0.1168 mm D. 1.4638 mm
Identify the abuse of statistics.The graph shows the increases in a certain expenditure over a four-year period. What is wrong with the graph? 
What will be an ideal response?
Find the indicated term of the binomial expansion.9th term; (x - 2y)11
A. 42,240x8y3 B. -21,120x3y9 C. -21,120x8y3 D. 42,240x3y8