Solve the equation and check your proposed solution.22 = f - 9

A. -31
B. 13
C. -13
D. 31


Answer: D

Mathematics

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Factor the four-term polynomial by grouping.xy - 2yz + 5x - 10z

A. (y + 5)(x - 2z) B. (y - 5)(x + 2z) C. (y + 2)(x - 5z) D. (y - 2)(x + 5z)

Mathematics

The table below shows the scores of a group of students on a 10 point multiple choice placement test. The total number of students taking the test is

A. 30. B. 52. C. 8. D. 180. E. none of these

Mathematics

Solve the problem.The solution set of the inequality x2 - 5x - 14 < 0 is (-2, 7). Without doing any work, give the solution to 

A. (-?, -2) ? (7, ?) B. (-?, -2] ? [7, ?) C. [-2, 7] D. (-7, 2)

Mathematics

Indicate whether the graph of the equation is a circle, an ellipse, a hyperbola, or a parabola. Then graph the conic section.x2 = 4 - (y + 8)2

A. parabola

B. hyperbola

C. ellipse

D. circle

Mathematics