Factor using the trial and error method.8x2 + 18x + 9
A. (8x - 3)(x - 3)
B. (4x - 3)(2x - 3)
C. (8x + 3)(x + 3)
D. (4x + 3)(2x + 3)
Answer: D
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Are the sets equal?A = {9, 10, 11, 12, 13}B = {8, 9, 10, 11, 12}
A. Yes B. No
Translate into an equation, then solve.Betsy has a balance of -$496 on her credit card. What payment should she make to get the balance to 
A. -249 + x = -496; A payment of $347 must be made. B. -496 + x = -249; A payment of $347 must be made. C. -496 + x = -249; A payment of $247 must be made. D. -249 + x = -496; A payment of $247 must be made.
Find the LCD. Build up the fractions to equivalent fractions having the LCD as the denominator.
and 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Solve the problem.In 1838, the German mathematician and astronomer Friedrich Wilhelm Bessel was the first person to calculate the distance to a star other than the Sun. He accomplished this by first determining the parallax of the star, 61 Cygni, at 0.314 arc seconds (Parallax is the change in position of the star measured against background stars as Earth orbits the Sun. See illustration.) If the distance from Earth to the Sun is about 150,000,000 km and ? = 0.314 seconds = 
minutes = 
degreesdetermine the distance d from Earth to 61 Cygni using Bessel's
figures. 
What will be an ideal response?