Solve the following quadratic equation by completing the square. Make sure your answer is simplified completely. If there are no real solutions, so state.7x2 - 2x - 3 = 0

A. x =  or x = 
B. x = -3 or x = 
C. x =  or x = 
D. x =  or x = 


Answer: C

Mathematics

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Find a parametrization for the line segment beginning at P1 and ending at P2.P1(-1, 1, 4) and P2

A. x = 1t - 1, y = 1t, z = - t + 4
B. x = 1t - 1, y = 1, z = - t + 4
C. x = -1t, y = 1t, z = t + 5
D. x = -1t, y = 1, z = t + 5

Mathematics

Factor.x2 - 11x + 18

A. prime B. (x + 9)(x + 1) C. (x + 9)(x - 2) D. (x - 9)(x - 2)

Mathematics

A point lying on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(18, 24) Find csc ?.

A.
B.
C.
D.

Mathematics

Solve the problem.A rock falls from a tower that is 480 feet high. As it is falling, its height is given by the formula  How many seconds will it take for the rock to hit the ground  Round to the nearest tenth, if necessary.

A. 21.9 sec B. 21.5 sec C. 14,400 sec D. 5.5 sec

Mathematics