Solve the equation.x(6x - 3) + 4 = 6x(x - 4) + x
A. - 
B. - 
C. 4
D. - 
Answer: D
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Use the principle of square roots to solve the equation.-6k2 - 4 = -58
A. 3 B. ±6 C. -29 D. ±3
Refer to this figure to answer the question. Assume 
and 
are parallel.
Are ?CDA and ?GHD equal in measure?
A. Yes B. No
Solve the problem.The student population of a small school has been increasing as shown in the following table. 
Take 1910 as year zero, and determine the linear or quadratic function that best fits the data.
A. f(x) = 0.16x2 - 17.5x + 106 B. f(x) = 0.1x2 - 10x + 440 C. f(x) = 0.27x2 - 29.1x - 410 D. f(x) = 5x - 93.2
Solve the problem.A whispering gallery is a room in the shape of an elliptic reflector. If a source of sound is placed at one focal point of an elliptic reflector, the sound is reflected through the other focal point. If one person speaks at one focal point, then another person at the other can hear sounds as faint as a whisper. If the whispering gallery is based on the ellipse 
+ 
= 1, how many units from the center of the ellipse would the two people stand?
A. 13 units B. 25 units C. 12 units D. 5 units