Find the function value.Find f
if f(x) = -2x2 + 3x + 4.
A. 
B. - 5
C. 5
D. - 
Answer: C
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Use a strictly graphical approach to solve the equation over the interval [0, 2?). Express solutions to the nearest hundredth.2 cot x + 2 csc x = 4
A. {0.89, 4.40} B. {0.93} C. {0.93, 3.14} D. {1.13}
The graphing calculator screen shows the graphs of the two given functions, and the display gives the coordinates of one of the solutions. Find the other solution.
y = -x2 + 4x + y = 4
A. (7, -3) B. (1, 3) C. (3, 1) D. (-1, 5)
Given the magnitudes of vectors u and v and the angle ? between them, find sum of 
. Give the magnitude to the nearest tenth when necessary and give the direction by specifying the angle that the resultant makes with u to the nearest degree.?u? = 14, ?v? = 86, ? = 90°
A. 100, 81° B. 87.1, 81° C. 100, 45° D. 87.1, 45°
Determine if the given ordered triple is a solution of the system. x - y + 5z = -20
z = -3 x + 3y + z = 12(-3, 5, 0)
A. Yes B. No