Add. Simplify, if possible.-17.15 + 13.62
A. 30.77
B. -3.53
C. 3.53
D. -30.77
Answer: B
Mathematics
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Completely factor the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve by completing the square.x2 + 8x = 5
A. x = 4 + 
B. x = -1 ± 
C. x = -4 ± 2
D. x = -4 ± 
Mathematics
Use a graphing calculator to graph the equation and identify the x-intercepts. If your answers are not exact, round to the nearest tenth.y = -2.5x2 + 8.9x - 1.5
A. x-intercepts: (-3.7, 0) and (0.2, 0)
B. x-intercepts: (0.2, 0) and (3.4, 0)
C. x-intercept: (1.8, 6.4)
D. x-intercept: (0, -1.5)
Mathematics
Match the given function to its graph.1) y = sin x2) y = cos x3) y = -sin x4) y = -cos xA B
C D
A. 1B, 2D, 3C, 4A B. 1A, 2B, 3C, 4D C. 1C, 2A, 3B, 4D D. 1A, 2D, 3C, 4B
Mathematics