steps to solve for x

- anonymous

steps to solve for x

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- anonymous

|dw:1351740959275:dw|

- anonymous

a^2 + b^2 = c^2 where c is the length of the hypotenuse.

- anonymous

what do i put for a and b

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## More answers

- anonymous

Do you know what a hypotenuse is?

- anonymous

x the longest side

- anonymous

Yes, that's right. Of the two remaining sides, it doesn't matter which one you call "a" or "b", just as long as neither is the hypotenuse because the hypotenuse is "c", or in your diagram, "x". So, you could change the formula to a^2 + b^2 = x^2 because it is understood that that is x. Once you add together the squares of "a" and "b", you THEN take the square root to get x.

- anonymous

can you please show me so i can use it as an example

- anonymous

Ok, but you will fill in the "a" and the "b". You are looking for steps as indicated in your problem. x^2 = a^2 + b^2, so x = sqrt(a^2 + b^2). As for actual steps: 1) square "a" and "b" separately, 2) add the resulting values to get one number, 3) take the square root of that number and then you have "x".

- anonymous

i don't understand like that i need this as an examlpe

- anonymous

What's "a" and what's "b"? They are in your diagram.

- anonymous

7 and 32

- anonymous

Good. So, x^2 = a^2 + b^2 becomes x^2 = 7^2 + 32^2. Now, square 7 and 32 separately and get two numbers, one for each. Add them to get one number. Take square root of that one number and you get "x".

- anonymous

i got 6.2 which i dont think is right

- anonymous

Your post came before I posted, so first go back to my last post.

- anonymous

1075

- anonymous

It's 1073, not 1075, but you were close. 1073 is x^2, so you take the square root of 1073 to get x.

- anonymous

3.71
13.21
5.94
8.25

- anonymous

|dw:1351732095243:dw|Is your diagram supposed to look like this?

- anonymous

no the 32 is a degree

- anonymous

use sin
sin(32) = 7/x

- anonymous

That changes everything. sin 32 = 7/x. x = 7 / sin 32.

- anonymous

whats the final answeR?

- anonymous

just gave it. look for the "x ="

- anonymous

what???

- anonymous

x = 7 / sin 32.

- anonymous

thats not a answer choice

- anonymous

then do the sin 32 and use the number

- anonymous

I did the sine and found that the answer is one that is listed.

- anonymous

can you determine sin 32?

- anonymous

13.21?

- anonymous

That was for the student to get the answer, surdawi.

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