4
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Answer:
x=4
Step-by-step explanation:
assuming both those lines are equal, set up an equation
5x+16=7x+8
subtract 5x and 8
8=2x
x=4
Answer: x=4 and y=3
Step-by-step explanation:
We start eliminating the same numbers with the same variable. So we take out 5y on both equation. We then subract 3x to 6x and we do the same to the right side. We end up having 3x=12 and then we divide 12/3=4. We plug 4 on the x values in one of the equation to find out the y value on that equation. You end up with y=3 and then plug that in the same equation on both to see if its right. Finally after that its correct.
Answer
-12
Step-by-step explanation:
Y-y over X-x, so -7-(-19) over -2-(1)
Don't forget (X,Y) and (x,y) positions! Very important for algebra!
Answer:
C
Step-by-step explanation:
Because the circumference is how big the circle is.