Simplify the expression. Assume all variables represent positive real numbers.
- 
+ 
A. 10
- 
B. 9x
- 6
C. 10x
- 6
D. 10x
- 6
Answer: D
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Let 
and compute the Riemann sum of f over the interval 
, choosing the representative points to be the left endpoints of the subintervals, using:
?
Two subintervals of equal length 
.
?
__________ sq units
?
Five subintervals of equal length 
.
?
__________ sq units
?
Ten subintervals of equal length 
.
?
__________ sq units
?
Can you guess at the area of the region under the graph of f on the interval 
? Round your answer to the nearest tenths.
? __________ sq units
What will be an ideal response?
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
-3
A. 
B. 
C. - 
D. 
Simplify.8(y + 10) - 6
A. 8y + 32 B. 8y + 4 C. 8y + 74 D. 18y - 6
Find the mean.Find the mean of the following set of numbers: 4, 6, 10, 6, 13, 10Round to the nearest tenth if necessary.
A. 8.2 B. 9.8 C. 8.7 D. 6.7