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January 26, 2015

January 26, 2015

Posted by **Eri** on Friday, May 24, 2013 at 3:55pm.

I said 6 X 10^8

2. what is the area of a square with the dimension of 1+ 2?

I don't know this one

3. Simplify: 2 4 + 2 8.

I said 10

4. Simplify: 2 4 + 4

I said 6

5. 5 4 x 8

----------------

8 X 2

I said 10.

6. y= 5 + 2

-------------

2

I said y= 2.5

Are these right?

- Algebra 1 -
**Reiny**, Friday, May 24, 2013 at 5:50pmI will assume you intended your

to come out as √

1. is correct, I would write it as

6.0 x 10^19

2. area = (1 + √2)^2

=1 + 2√2 + 2 = 3 + 2√2

3. 2√4 + 2√8

= 2(2) = 2(2√2)

= 4 + 4√2

4. correct

5.

(5√4)(√8)/(√8(√2)

= 5√40/√16

= 5(2√10)/4

= 5√10/2

√y = 5+√2

square both sides

y = (5+√2)^2 = 25 + 10√2 + 2 = 27 + 10√2

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