Subsitution
2y-x=5
minus 2y both sides
-x=5-2y
times -2 both sides
x=2y-5
subsitute 2y-5 for x in other equation
(2y-5)²+y²-25=0
expand
4y²-20y+25+y²-25=0
5y²-20y=0
factor
5y(y-4)=0
set to zero
5y=0
y=0
y-4=0
y=4
subsitute back
for y=0
x=2y-5
x=2(0)-5
x=-5
one solution is (-5,0)
for x=4
x=2y-5
x=2(4)-5
x=8-5
x=3
one solution is (3,4)
the 2 soltuions are (-5,0) and (3,4)
Answer:
The answer is linear, strong
Step-by-step explanation:
Hope this helped you
Answer:
I think it's C sorry if I'm wrong
The angle formed by the intersection of 2 tangents outside the circle equals half the difference of the <span>intercepted arcs.
</span>far arc = 253°
near arc = 360 - 253 = 107°
x = (253 - 107)/2 = 146/2 = 73°
