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attashe74 [19]
2 years ago
11

I NEED HELP!!! Can someone please help me

Mathematics
2 answers:
bekas [8.4K]2 years ago
7 0
I’m pretty sure it’s 7
lisabon 2012 [21]2 years ago
6 0

Answer:

x = 4\sqrt{2}

Step-by-step explanation:

Here you have to use the Pythagorean Theorem.

Pythagorean Theorem: a^2 + b^2 = c^2

STEP 1: Define your variables

<em>a</em> and <em>b </em>are the legs of the triangle, and c is the hypotenuse

a = 7

b = x

c = 9

STEP 2: Plug the variable into the equation

7^2 + x^2 = 9^2

STEP 3: Solve

7^2 + x^2 = 9^2

49 + x^2 = 81

49 - 49 + x^2 = 81 - 49

\sqrt{x}^2 = \sqrt{32}

x = \sqrt{32}

STEP 4: Simplify

Since the questions asks you to put it in simplified radical form, you do not have to approximate the answer, but you do have to simplify the radical.

x = \sqrt{32}

x = \sqrt{16} * \sqrt{2}

x = 4\sqrt{2}

Hope this helps

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