# Algebra 1

posted by .

1. (3.0 X 10^2) x (2.0 X 10^6)
I said 6 X 10^8

2. what is the area of a square with the dimension of 1+ ã 2?
I don't know this one

3. Simplify: 2ã 4 + 2ã 8.
I said 10

4. Simplify: 2ã 4 + ã 4
I said 6

5. 5ã 4 x ã 8
----------------
ã 8 X ã 2
I said 10.

6. ã y= 5 + ã 2
-------------
2
I said y= 2.5

Are these right?

• Algebra 1 -

I will assume you intended your
ã 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

## Similar Questions

a rectangular swimming pool has a perimeter of 24 feet. what should the dimesions of the pool be to create a maximum area?
2. ### Algebra

Triangles C and D are similar. The area of triangle C is 47.6 in(2). The base of Trianfle D is 6.72 in. Each Dimension of D is 6/5 the corresponding dimension of C. What is the Height of D?
3. ### algebra 1

What is the area of a square with the dimension of 1+square root of 2?
4. ### algebra 1

What is the area of a square with the dimension 1+square root of 3?
5. ### MATH-Stuck

For each of the following, the Surface Area is given. Calculate the missing dimension. This is a rectangular prism with the width missing. The height seems to be 20 cm. The length I guess is 34 cm, and the Surface Area is 6020cm square. …
6. ### math

mrs.fuchs has 40yd of fencing to use to make a rectangular area for her garden.(she wants to keep the animals out!!!!) she pans to use part of the 26yd wall of her house as one of the sides of the rectangular area. - what whole dimension( …
7. ### math

mrs.fuchs has 40yd of fencing to use to make a rectangular area for her garden.(she wants to keep the animals out!!!!) she pans to use part of the 26yd wall of her house as one of the sides of the rectangular area. - what whole dimension( …
8. ### Math To: Reiny

This is one whole question: (12) (10xy^3) (3x^2y^2) (5x) (2y) I don't know how to do any of these: simplify sqaure root of 160000 simplify sqaure root of 0.04 simplify 3 * square root 81 simplify square root of 900 simplify square …
9. ### math

Solve this problem plz... A rectangle has an area of 288 cm square.if the width is decreased by 1cm and length is increased by 1 cm the area would decreasedby 3 cm square.fin the original dimension of the rectangle.
10. ### Math

you can draw a square inside another square by placing each vertex of the inner square on one side of the outer square. The large square in this diagram has side length 10 units a) Determine the area of the inscribed square as a function …

More Similar Questions