Evaluate the sum.
A. 18.4820
B. 17.2246
C. 17.0119
D. 19.1615
Answer: A
Mathematics
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Subtract.0.7476 - 0.439
A. 0.3076 B. 0.3086 C. 0.4086 D. 0.3186
Mathematics
Evaluate the first partial derivatives of the function at the given point. 
?
A. 
?
B. ?
?
C. ?
?
D. ?
?
Mathematics
Solve the problem.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. The linear model for this data is 
where x is number of hours studied and y is score on the test. Use this model to predict the score on the test of a student who studies 13 hours. 
A. 76.2 B. 86.2 C. 86.8 D. 81.2
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics