Answer:
21 books need to be moved
Explanation:
123+81=204
204/2=102
So there needs to be 102 books on each shelf.
123-102=21
So 21 books need to be moved from the first shelf.
a. Recall that
For , we have
By integrating both sides, we get
If , then
so that
We can shift the index to simplify the sum slightly.
b. The power series for can be obtained simply by multiplying both sides of the series above by .
c. We have
10) each book cost $30.10 w/o taxes
11) 17.86 + 10.3 = 28.16 gallons in total
12) 14% miles
13) 42 small bags
14) 2/6 girls finished their homework
15) around 8,000 minutes
-4 1/3 minutes,-4 1/2 minutes, 4.2 minutes,4.75 minutes.
that's the order!
Remember, you can do anything as long as you do it to both sides
2a+3=7
minus 3 both sides
2a+3-3=7-3
2a+0=4
2a=4
divide both sides by 2
(2a)/2=(4/2)
(2/2)a=2
1a=2
a=2