Express the sum in sigma notation.3 + 6 + 9 + 12 + 15
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.9 - 
+ 
- 
+ ... + (-1)n-1 
+ ...
A. 
; 18
B. 
; 6
C. 
; 18
D. 
; 6
Mathematics
Find the derivative of the function at the given point in the direction of A.
A. 
B. 
C. 
D. 
Mathematics
Simplify.(-28 ÷ 4) - (6 ÷ 6)
A. 6 B. 7 C. -8 D. -7
Mathematics
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.-x = -0.05; divided
A. -1
B. - 
C. -0.05
D. - 20
Mathematics