Answer:
Yes because 5^2 + 12^2 = 13^2
Step-by-step explanation:
We can check using the Pythagorean theorem
a^2 + b^2 = c^2
5^2 + 12^2 = 13^2
25+ 144= 169
169 = 169
Perpendicular means the slopes are opposite inverse of each other
If line a is slope 2, the perpendicular line to Line a would have a slope - 1/2
Difference in y over difference in x gives slope. If they are opposite inverse values the lines are perpendicular. ( in this case the answer is true.)
Answer: 5, 3, 
, D
<u>Step-by-step explanation:</u>
-5 < 0 so f(-5) = | -5 | = 5
-3 < 0 so f(-3) = | -3 | = 3
6 > 0 so f(6) =
graph D <em>(since x can equal zero)</em>
Answer:
X=5
Step-by-step explanation:
3x-8=7
3x=15 (add 8 to both sides)
X=5 (divide by 3)
The norm of a vector 
is equal to the square root of the inner product of with itself.
a. 
b. 
