Question

If the point (x,square root 3/3) is on the unit circle, what
is x?

Answer 1

A point (x , y) is on the unit circle if and only if it satisfies this relation :
x² + y² = 1
Now, your y is given to be sqrt(3) / 3
So plug that in, and find x.

Answer 2

the choices are
a:2/3
b:square root(6)/3
c:4/9
d:square root(2)/3

Answer 3

So... which did you get? Plug in sqrt(3)/3 for y, and then solve for x.

Answer 4

i cant figure it out can u do it for me please

Answer 5

\[\huge x^2+y^2=1\]
Now, we have \[\large y=\frac{\sqrt{3}}{3}\]and so we plug that in
\[\huge x^2+\left(\frac{\sqrt{3}}{3}\right)^2=1\]
Giving us....
\[\huge x^2+\frac{3}{9}=x^2+\frac{1}{3}=1\]

Answer 6

so which choice is right

Answer 7

Just solve for x.
You can do it :)

Answer 8

is the answer 2/3

Answer 9

u there

Answer 10

Yeah... thinking.

Answer 11

ok

Answer 12

think faster i have so olong to do this

Answer 13

Okay, the answer is in the choices all right. I was having doubts.

Answer 14

is the answer 2/3

Answer 15

I'll believe you if you can show how you got it :)

Answer 16

2/3^2+3/9=1

Answer 17

Nu-uh...
(2/3)² + (3/9) = (4/9) + (3/9) = 7/9 which is not equal to 1.
Try again.

Answer 18

how bout 4/9^2+3/9=1

Answer 19

It looks like you're guessing. Solve for x from the equation
\[\huge x^2 + \frac{1}{3}=1\]
And in time, you'll be able to answer questions like this even without choices.

Answer 20

no im not so is that wrong
i dont understand this

Answer 21

yololol do u know the answer

Answer 22

Find out. Work out
\[\huge \left(\frac{4}{9}\right)^2 + \frac{1}{3}\]
And see if it equals 1.

Yes, I do know the answer, but I'd prefer, and it'd be better for you, if you could arrive at the answer yourself, if even with a little bit of help from me :)

Answer 23

please if u tell me the answer ill try to see how u got it

Answer 24

the answer is d

Answer 25

Sorry, the power went out...
Have a little more faith in yourself...
YOU CAN DO THIS :)

Answer 26

so thats wrong

Answer 27

then it is b that was my first choice i thought

Answer 28

i figure it out
6/9+3/9=1

Answer 29

so the answer is b

Answer 30

thsanks for the help

Answer 31

See, you can do it :)

Answer 32

thanks for believing in me im going to close this now