Solve the equation. Express radicals in simplest form.16x2 - 240 = 0
A. ±15
B. 16
C. 37.5
D. ±
Answer: D
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Find the domain of the logarithmic function.f(x) = log3(x2 + 4x + 4)
A. (-?, -2) ? (-2, ?) B. (-2, ?) C. (2, ?) D. (-?, 0) ? (0, ?)
Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.ln 
= 7
A. {e14 + 8}
B. {e7 - 8}
C. {e14 - 8}
D. 
Write the equation in slope-intercept form.3x - 10y = -6
A. y = 
x + 
B. y = 
x - 2
C. y = 3x + 11
D. y = - 
x + 
In 2000, total revenues from sales of recorded rock, rap, and classical music amounted to $12.0 billion. Rock music brought in twice as much revenue as rap music and 600% the revenue of classical music. How much revenues were earned in each of the three categories of recorded music? ?
A. Revenues from sales of recorded rock: 7.2Revenues from sales of recorded rap: 3.7Revenues from sales of recorded classical music: 1.2 B. Revenues from sales of recorded rock: 7.2Revenues from sales of recorded rap: 3.6Revenues from sales of recorded classical music: 1.2 C. Revenues from sales of recorded rock: 1.2Revenues from sales of recorded rap: 7.2Revenues from sales of recorded classical music: 3.6 D. Revenues from sales of recorded rock: 7.1Revenues from sales of recorded rap: 3.7Revenues from sales of recorded classical music: 1.2 E. Revenues from sales of recorded rock: 3.6Revenues from sales of recorded rap: 7.2Revenues from sales of recorded classical music: 1.2