Answer:
a=8
Step-by-step explanation:
We can use ratios of similar triangles to solve
The smaller triangle has sides a and 12 and the larger triangle has sides a+a+4 and 12+18 which combine to 2a+4 and 30
a 2a +4
--------- = -----------
12 30
Using cross products
30a = 12(2a+4)
30a = 24a +48
Subtract 24a from each side
30a -24a = 24a-24a +48
6a = 48
Divide each sdie by 6
6a/6 =48/6
a =8
Slope of the line is -7
Step-by-step explanation:
- Step 1: Find slope of the line using formula, m = (y2 - y1)/(x2 - x1). Here, x1 = 7, y1 = -41, x2 = -15 and y2 = 113
⇒ m = (113 - -41)/(-15 - 7)
= 154/-22 = -7
Answer:
6.03 6.035 6.3 6.305
not 100% sure
let me know if im correct thank you!
we are given equation of line
Equation of perpendicular line:
Firstly , we will find slope of line
we can compare it with
y=mx+b
we get
we know that
slope of perpendicular line will be -1/m
so, slope is
It passes through point (-4,5)
so, we can use point slope form of line
we get
..........Answer
Equation of parallel line:
Firstly , we will find slope of line
we can compare it with
y=mx+b
we get
we know that
slope of parallel line always equal
so, slope is
It passes through point (-4,-5)
so, we can use point slope form of line
we get
............Answer