10√2 is the answer for square root of 200
Answer:
36 years old (jim)
Step-by-step explanation:
looks like a good ol' word problem!
first, if you don't know what to do, always assign variables
Jim's age: x+9
June's age: x
Alex's age: x-8
we know the sum of their ages which is 82
so, x+9+x+x-8=82
simplify
3x+1=82
3x=81
x=27, but we're not done yet
Now we know x
jim: 36
june: 27
Alex: 21
so the oldest is jim at 36
Answer: B
Step-by-step explanation:
B is basically showing the Pythagorean theorem does not work on the triangle's side lengths.
The pythagorean theorem is supposed to work for all right triangles
Answer:
it either 1/2 or -1/2
Step-by-step explanation:
Just plug it in:
c & d = c² + d² - 4
2 & 1 = 1² + 2² - 4
= 1 + 4 - 4 = 1
