70 feet.
If you're 30 feet from the base, then you have to climb that 30 feet, plus the 40 foot length of that building. (:
Answer:
We conclude that:

Step-by-step explanation:
Given the equation

First, solve (x - 8)²
Apply Perfect Square formula: (a - b)² = a² - 2ab + b²



so the expression becomes

Add the numbers: 64+16=80
Therefore, we conclude that:

Answer: right triangle
Step-by-step explanation: 9, 40, and 41 are examples of Pythagorean triples.
Answer:
Equation 1: x-3y+5=0
Equation 2: 3x+y-1=0
Step-by-step explanation:
Equation 1: x+3y=-5
x+3y+5=-5+5
x=3y+5=0
Equation 2: 9x+3y-3=0
3x+y-1=0