<h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
We know that 
, so substitute that into the equation. 
With negative powers, instead of making the result negative, you divide one by it. Mathematically speaking, 
. This makes our equation: 
Finally, simplify the exponent. 
Answer:
(7, 0), (-8, 0), (0, 0)
Step-by-step explanation:
y = f(x) = 0
the real solutions are the ones that cross the x-axis because when a point is on the x-axis, its y coordinate will be 0.
=> (7, 0), (-8, 0), (0, 0)
I think it might be pairs 2 & 3
Answer:
2√30
Step-by-step explanation:
Pythagorean Theorem: a^2 + b^2 = c^2
7^2 + b^2 = 13^2
b^2 = 120
b = 2√30
