Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.
+ 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Answer: D
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Find the point of intersection.
 Figure 3.png)
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.V = 
Bh; V = 14, h = 2
A. B = 7 B. B = 21 C. B = 16 D. B = 28
Solve the equation.
- x = 
- 
A. 
B. 
C. 
D. 
?Find the open intervals on which the function 
is increasing or decreasing.
?
A. ?The function is increasing on the interval 
and decreasing on the interval 
.
B. ?The function is increasing on the interval 
and decreasing on the interval 
.
C. ?The function is increasing on the interval 
and decreasing on the interval 
.
D. ?The function is increasing on the interval and decreasing on the interval .
E. ?The function is increasing on the interval 
and decreasing on the interval 
.