Question

Need help with this

Answer 1

a²+b² = c² where a and b are legs and c is the hypotenuse

So...

a²+4²=13²

a²+16=169

a²=153

a=√153

answer: approx. 12.37 units

Answer 2

The equation would be a^ + 4^ = 13^

First we need to bring the numbers to the second power, 4 to the second would be 16, 13 to the second power is 169.

Then we subtract 16 from 169, which equals to 153.

Then we "square root" the 153 because of the 2nd power on top of the a

The correct answer would be 12.4

I hope this helps :)

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