Divide. Simplify, if possible.
A. -0.57
B. 0.71
C. -0.71
D. 0.57
Answer: A
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Provide an appropriate response.A set of data consists of the number of years that applicants for foreign service jobs have studied German and the grades that they receive in a proficiency test in that language. The following linear model is obtained: 
where x represents number of years of study and y represents grade in test. What does the slope of the model represent in terms of the grades on the test?
What will be an ideal response?
Answer the question.The table shows the number of pupils per teacher in selected states.
Which states have a figure that is at most 14.7?
A. Texas, Wyoming, Maine, Missouri B. Alaska, California, Idaho C. Alaska, Texas, California, Idaho D. Wyoming, Maine, Missouri
Use the quadratic formula to solve the equation. (All solutions are real numbers.)4x2 - 5x - 9 = 0
A. 
B. 
C. 
D. 
Verify the identity.
= 
What will be an ideal response?