Find the correlation coefficient.The test scores of 6 randomly picked students and the number of hours they prepared are as follows:  

A. -0.2242
B. 0.6781
C. 0.2242
D. -0.6781


Answer: C

Mathematics

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Find the area of the surface generated when the given curve is revolved about the x-axis.  y =  +   on  

A.
B.
C.
D.

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Differentiate the function.

Mathematics

Provide an appropriate response.What happens if C = 90° when the law of cosines is applied in the form 

What will be an ideal response?

Mathematics

Write a slope-intercept equation for a line with the given characteristics.m = , passes through (4, 3)

A. y = x + 
B. y = - x + 
C. y = x - 
D. y = x - 

Mathematics