Given  figure 1.png)
, find (AB) ? (CD), or explain why the operation cannot be performed.
What will be an ideal response?
 answer.png)
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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?
Perform the operations indicated.(5)(-9)
A. 45 B. -40 C. -45 D. -35
Find the product AB, if possible.A = 
, B = 
A. 
B. 
C. 
D. AB is not defined.
Decide what number must be added to the binomial to make a perfect square trinomial.x2 + 
x
A. 
B. 
C. 
D. 