Solve by using the quadratic formula.4x2 + x - 6 = 0
A. 
B. 
C. 
D. no real-number solutions
Answer: A
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Solve the problem.A pier 1250 meters long extends at an angle from the shoreline. A surveyor walks to a point 1500 meters down the shoreline from the pier and measures the angle formed by the ends of the pier. If is found to be 53°. What acute angle (correct to the nearest tenth of a degree) does the pier form with the shoreline? Is there more than one possibility? If so, how can we know which is the correct one?
What will be an ideal response?
Find the extreme values of the function and where they occur.y = x2e-x + 2xe-x
A. Minimum value is 2e
(1 - 
) at x = -
; maximum value is 2e-
(1 + 
) at x = 
.
B. Minimum value is 2e
(1 - 
) at x = -
; no maximum value.
C. Maximum value is 2e-
(1 + 
) at x = ; no minimum value.
D. None
Evaluate the permutation. Round to three decimal places when appropriate.P(12, 12)
A. 1 B. 479,001,600 C. 0 D. 11
Provide an appropriate response.True or False? The graph of y = c, where c is a real number constant, is a line parallel to the 
A. False B. True