Write sigma notation.  +  +  +   +   

A.
B.
C.
D.


Answer: C

Mathematics

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Use the vertical line test to determine if the graphs are functions.

A. Yes B. No

Mathematics

Solve the initial value problem. = cot x, y(-3) = 5

A. y = + -3
B. y = + 5
C. y = + 5
D. y = -+ 5

Mathematics

Find the exact values of the remaining trigonometric functions of ? from the given information.sin ? = - , ? in quadrant III

A. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
B. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
C. sin ? = - 
cos ? = - 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = 
D. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 

Mathematics

P(6 ? X ? 8)

The probability density function of X is f (x) = 3/ x4 over [1, ?) . Compute the following quantity.

Mathematics