Solve the equation f(x) = 0 analytically and then use the graph of y = f(x) to solve the inequalities f(x) < 0 and 
f(x) = ln(x + 8) - ln(x - 8)
A. ?; (8, ?); ?
B. ?; ?; (8, ?)
C. ?; (-?, 8); ?
D. ?; ?; (-?, 8)
Answer: B
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Solve.During a visit to a high school, a health care worker determined that 25 of the 225 girls were anemic and 18 of the 220 boys were anemic. (a) Express in lowest terms the fraction of girls who were anemic.(b) Express in lowest terms the fraction of boys who were anemic.(c) Is the fraction of anemic students higher among the girls or the boys? [Hint: Convert your answers to parts (a) and (b) to equivalent fractions with the same denominator.]
A. (a) 
, (b) 
, (c) girls
B. (a) 
, (b) 
, (c) girls
C. (a) 
, (b) 
, (c) girls
D. (a) 
, (b) 
, (c) girls
Solve. Remember to insert units when writing your answer.A case of soft drink holds 24 bottles, each of which contains 10 ounces of soft drink. How many gallons are there in one case of the soft drink?
A. 7
gal
B. 3
gal
C. 15 gal
D. 1
gal
Choose the value which could represent the slope of the line. Assume that the scale on the x-axis is the same as the scale on the y-axis.
A. 7 B. -1 C. 1 D. -7
Determine whether the equation defines y as a function of x.3x + 2y = 5
A. y is a function of x B. y is not a function of x