Factor the trinomial completely.9y2 + 12y + 4
A. (9y + 2)(y + 2)
B. (3y - 2)(3y - 2)
C. (3y + 2)(3y + 2)
D. (9y + 1)(y - 4)
Answer: C
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Use the range rule of thumb to approximate the standard deviation.2, 6, 15, 9, 11, 22, 1, 4, 8, 19
A. 6.3 B. 2 C. 5.25 D. 6.8
Graph the hyperbola. Give the coordinates of the center as well as the values of a and b.
- 
= 1
A. center (0, 0), a = 8, b = 3
B. center (0, 0), a = 3, b = 8
C. center (0, 0), a = 8, b = 3
D. center (0, 0), a = 3, b = 8
Find the real solutions of the equation.x1/2 - 6x1/4 + 8 = 0
A. {2, 4} B. {-2, -4} C. {4, 16} D. {16, 256}
Determine the x- and y-intercepts on the graph of the equation.y = 9.3x - 837
A. x-intercept is 9.3; y-intercept is 9.3 B. x-intercept is 90; y-intercept is -837 C. x-intercept is 837; y-intercept is -837 D. x-intercept is -90; y-intercept is 837