Question

Given the two expressions shown below:

square root of 64 plus square root of 5
square root of 64 plus square root of 4


Which statement best describes the two expressions?

Both are rational.

Both are irrational.

A is rational, but B is irrational.

A is irrational, but B is rational.

Answer 1

@nikato

Answer 2

@camerondoherty

Answer 3

So lets find the Square root of 64 first

Answer 4

what times what = 64?

Answer 5

8

Answer 6

yes so to simplify the question you get
A\[8 + \sqrt{5}\]B\[8 + \sqrt{4}\]

Answer 7

now what times what gives you 4?

Answer 8

2

Answer 9

Ok so B is:
8+2 what does that equal?

Answer 10

10

Answer 11

Ok so now we know that B is rational.

Answer 12

Can you multiply 2 of the same numbers to get 5?

Answer 13

Yes?

Answer 14

Well... not exactly...

Answer 15

\[\sqrt{5}\] stays like that which is irrational

Answer 16

so A is irrational and B is rational

Answer 17

Any Questions?

Answer 18

This makes perfect sense! Should I tag you or just put my next question here?

Answer 19

Well... Ask a new Question lol

Answer 20

What is the value of x in the solution to the following system of equations?

x − 2y = 2
3x + y = 6

Numerical Answers Expected!

Answer 21

Are you there?

Answer 22

Yes

Answer 23

I posted the question above... ^^

Answer 24

THats fine

Answer 25

the answer is 2

Answer 26

The following function represents the value of a house after x years:

f(x) = 242,000(0.96)x

What does 0.96 represent?

The present value of the house

The value of the house after x years

The increase in the value of the house per year, which is 4%

The decrease in the value of the house per year, which is 4%

Answer 27

Cam, I closed the question. dont explain, just answer :)

Answer 28

@camerondoherty ????

Answer 29

D