Simplify.15 + (-14) - 19 - (-12)
A. 36
B. -30
C. 8
D. -6
Answer: D
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Describe how you would apply the five basic steps of a statistical study to the given issue. As a marketing executive for a computer company you wish to determine the average length of time that owners of personal computers in the U.S. keep a computer before buying a newer model.
What will be an ideal response?
Solve the problem.The following scatter diagram shows heights (in inches) of children and their ages.Height (inches)
Age (years)Based on this data, how old do you think a child is who is about 39 inches tall?
A. 7 years B. 1 year C. 3 months D. 3 years
Find the product.(3.1x - 8y)(3.2x + 7y)
A. 9.92x2 - 56y2 B. 9.92x - 3.9xy - 56y C. 9.92x2 - 47.3xy - 56y2 D. 9.92x2 - 3.9xy - 56y2
Write the system of equations associated with the augmented matrix. Do not solve.
A. 
B. 
C. 