Answer:
-4x + 3y = -12
Step-by-step explanation:
3y = 4x - 12
subtract -4x to both sides
-4x + 3y = -12
hope this helps :)
Answer:
360 degrees
Step-by-step explanation:
The sum of the INTERior angles of a pentagon equal
(n-2)(180) = 540
each angle is then 540/5 = 108
each is a supplementary angle to the exterior angle
so EACH exterior angle is 180 - 108 = 72
there are 5 of these 5 * 72 = 360 degrees
Answer:
I think the answer is b or c
Answer:
Step-by-step explanation:
The easiest way to do this is to solve for x. Since x and y are vertically opposite, y = x
40 + 50 + x = 180 degrees. A straight line has an angle of 180 degrees.
90 + x = 180 Subtract 90 from both sides
x = 180 - 90
x = 90
But y = x
so y = 90 degrees.
Thank you for the very clear explanation of what is happening in this question.