Length of BC = 9.88
Answer in detailed step:
Answer:
x = 2
Step-by-step explanation:
2x - 10 + 3x - 15 = 10
5x - 25 = 10
5x = 35
x = 7
7 - 5 = 2
Step-by-step explanation:
I've used elimination method over here but it can also be done by using substitution.
(3,2);y=3x-2
The equation is in slope-intercept form...
y=mx+b
m is the slope.
b is the y-intercept, the value of y when x=0.
Slope is 3.
Any line parallel to this has the same slope.
Point-slope formula...
y-y1=m(x-x1)
y-2=3(x-3)
y-2=3x-9
Let's add 2 to both sides...
y-2+2=3x-9+2
y=3x-7
Let's check our work...
(3,2)
2=[(3)(3)]-7
2=9-7
2=2
Answer:
true
Step-by-step explanation: