Factor the polynomial by grouping:
a. 
b. 
c. 
d. 
b.
Mathematics
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Solve the problem.A company has 23,500 employees. The average length of service for the employees is 9.3 years with a standard deviation of 4.2 years. Find the length of service (to the nearest one-tenth of a year) for an employee whose time in service has a z-score of 1.5.
A. 7.8 years B. 15.6 years C. 15.7 years D. 13.5 years
Mathematics
Provide an appropriate response.Does a person who receives a 2
% pay raise in a year in which inflation runs 6% experience a net gain or loss in purchasing power (ignoring taxes)? Explain.
What will be an ideal response?
Mathematics
Evaluate or simplify the expression without using a calculator.7
A. 12.0594 B. 3.92 C. 392 D. 39.2
Mathematics
Convert the units using unit fractions.144 hr = 
days
A. 48 B. 42 C. 72 D. 6
Mathematics