Simplify.8x3 + x - 3(9x2 - 4x)
A. 8x3 - 9x2 - 3x
B. 8x3 - 27x2 - 11x
C. 8x3 - 27x2 + x + 12
D. 8x3 - 27x2 + 13x
Answer: D
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When a beam of light is reflected from a smooth surface, the angle formed by the incoming beam with the surface is equal to the angle formed by the reflected beam and the surface. The beam of light in the figure makes an angle of 39° with 
. Complete the path of the light beam as it reflects from 
, from 
, from 
again. At what angle does the beam reflect from 
the second time?
A. 70°
B. 77°
C. 31°
D. 97°
Find gross earnings. Overtime is one-and-a-half times the normal per piece rate.Mark Miller is paid $2.18 for each fishing reel assembled and is charged $1.12 per rejection. One week he assembled 208 reels at the regular rate, 24 reels at the overtime rate, and had 6 chargebacks.
A. $538.64 B. $499.04 C. $525.20 D. $531.92
Find the domain of the rational function.f(x) = 
A. all real numbers B. {x|x ? 0, x ? 1} C. {x|x ? -1, x ? 1} D. {x|x ? -1, x ? 1, x ? -6}
Write the sentence as an equation or inequality. Use x to represent any unknown number.Four is not equal to six divided by two.
A. 4 = 6 ÷ 2 B. 4 ? 6 C. 4 ? 6 ÷ 2 D. 4 ÷ 2 ? 6