Answer:
C
Step-by-step explanation:
I've done this and I got it right
Answer:
It is not a right angled troagle
Step-by-step explanation:
Given
Sides: 5m, 7m and 9m
Required
Is it a right angled triangle?
A triangle is right angled if:

Where a is the longest side and b,c is any of the other.
So, we have:



Since they're not equal then it is not a right angled troagle
Triangle has 180 degree in total, in order to get x, you use 180-70-75=35
Answer: y=-4x-31
Step-by-step explanation:
To find a ling that is parallel to the given line and passes through the given point, we need to use the given point. We know that the slope MUST stay the same because parallel lines NEVER touch. All we have to do is plug in the point and find the y-intercept.
-7=-4(-6)+b [multiply]
-7=24+b [subtract both sides by 24]
b=-31
Now, we know that y=-4x-31 is the equation.