Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.
x2 - x + 
= 0
A. 2.5
B. -0.303, 3.303
C. 0.5, 2.5
D. 0.382, 2.618
Answer: D
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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. 
Solve the problem.An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 18 hours to do the job. How long would it take the experienced auditor working alone?
A. 36 hr B. 18 hr C. 27 hr D. 54 hr
Make a scatterplot of the data. Then find an exponential, logarithmic, or logistic function f that best models the data. Round function values to the nearest hundredth.
A. Logistic: f(x) = 
+ 4.45
B. Exponential: f(x) = 3.11(1.26)x
C. Exponential: f(x) = 3.33(1.20)x
D. Logistic: f(x) = 
Add or subtract. Express the answer as a mixed number.15
- 9
A. 24
B. 23
C. 5
D. 5