Find an equation for the sphere with the given center and radius.Center (0, 0, 10), radius = 2
A. x2 + y2 + z2 + 20z = -96
B. x2 + y2 + 2 z2 - 20z = -96
C. x2 + y2 + 2 z2 + 20z = -96
D. x2 + y2 + z2 - 20z = -96
Answer: D
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Use a graphing calculator to plot the data and find the quadratic function of best fit.The number of housing starts in one beachside community remained fairly level until 1992 and then began to increase. The following data shows the number of housing starts since 1992 (x = 1). Use a graphing calculator to plot a scatter diagram. What is the quadratic function of best fit?
A. H(x) = -2.679x2 + 26.607x - 168.571 B. H(x) = -2.679x2 - 26.607x + 168.571 C. H(x) = -2.679x2 + 26.607x + 168.571 D. H(x) = 2.679x2 + 26.607x + 168.571
Evaluate the function as indicated.Find f(0) when f(x) = 5x + 7.
A. 5 B. 7 C. 12 D. 0
Identify the quadrant in which the point is located.(-17, -13)
A. Quadrant III B. Quadrant I C. Quadrant IV D. Quadrant II
Factor the difference of two squares completely.2x2 - 18
A. 2(x - 3)2 B. 2(x + 3)(x - 3) C. 2(x + 3)2 D. Prime