Suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. Use this information to find the requested percent.Find the percent of home prices between $150,000 and $157,500 if the standard deviation is $2500.
A. 34%
B. 47.5%
C. 49.85%
D. 99.7%
Answer: C
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Find the indicated value.Find P if log P = 7, where P is the population of bacteria in a culture.
A. P = 70 B. P = 10-7 C. P = 107 D. P = e7
Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. closed infinite interval; {x|x ? -6}; [-6, ?) B. open infinite interval; {x|x > -6}; (-6, ?) C. closed infinite interval; {x|x ? -6}; (-?, -6] D. open infinite interval; {x|x < -6}; (-?, -6)
Solve the inequality. Express your answer using interval notation.
- 2 < 6
A. 
B. 
? 
C. 
D. 
Simplify the rational expression. Assume that no variable has a value which results in a denominator with a value of zero.
A. - 
B. 
C. 
D. - 