Answer:
B
Step-by-step explanation:
the -2 in the answer is the y intercept. 1/4 is the slop. rise over run, so up one and over four
{x-2y=-6
{3x+y=-4 /*2
<u>{6x+2y=-8 </u> (+)
7x=-14 /:7
x=-2
3x+y=-4
3*(-2)+y=-4
-6+y=-4
y=2
Solution: (-2; 2)
n/4+n/4+n/4+n/4=4n/4=n
4 units
Let ABC be isosceles right angled ∆ right angled at B
By Pythagoras theorem,
AC² = AB² + BC²
(√32)² = 4² + s²
32 = 16 + s²
s² = 32 - 16
s² = 16
s = √16
s = 4 units.
Therefore s = 4 units
Hope it helps...
Answer:b=1/4r-3/4
12 1/2
