Use the equation below to answer these questions. 1.) what is the solution to the equation? 2.) what is the extraneous solution? why? 3.) in general, what is an extraneous solution?

1)

Square both sides to get

Factorize and solve:

2) I assume we take to be defined only for . Under this condition, a solution would be extraneous if is undefined, which happens if .

If , then , so it is not extraneous.

If , then , so it is not extraneous.

So there are not extraneous solutions to this equation.

3) Lots of information on this on the web...

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!