Find the product.-7x7(6x8 - 2x7 + 9)
A. -42x8 + 14x7 - 63
B. -42x15 + 14x14 - 63x7
C. -42x15 + 14x14 + 9
D. -42x15 - 2x7 + 9
Answer: B
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Answer as requested.Suppose that there is perfect positive correlation between the number of hours studied for a test and score on the test. Which of the following statements must be true? More than one statement may be true.A: If we know the number of hours a given student studied, we will be able to perfectly predict their test score.B: If Anne studied twice as long as Manuel, she will score twice as much.C: If Lu Yi studied ten hours more than Andrea, Lu Yi will score ten points more than Andrea. D: All data points lie perfectly on a horizontal line.
A. All statements are true B. A C. B and C D. A and D
Find the limit of the sequence if it converges; otherwise indicate divergence.an = 
A. 
B. - 
C. 1
D. Diverges
Find the partial derivative of the dependent variable or function with respect to each of the independent variables.f(x, y) = 
A. 
= 
; 
= 
B. 
= - 
; 
= - 
C. 
= - 
; 
= - 
D. 
= - 
; 
= - 
Solve the problem.At one college, GPAs are normally distributed with a mean of 2.9 and a standard deviation of 0.4. What percentage of students at the college have a GPA below 3.3?
A. 95% B. 16% C. 84% D. 68%