<span>Its speed is 18.05 m/s</span>
Answer:

Step-by-step explanation:
The given equation is:

To find the point where this line intersect the y-axis, we put x=0 into the given equation.
When x=0, we have
.
This implies that; y=5.
The y-intercept is (0,5).
Comparing (0,5) to (0,b), we can conclude that; b=5
You just need to know that all sides need to have the same measurement because it is a equilateral triangle.
9 and -1 9*-1=-9 and 9-1=8
Answer:
425/7
Step-by-step explanation:
I used a calculator. Hope this helped!!