Answer:

Step-by-step explanation:
Given


Required

We have:

This gives:

Open bracket

Collect like terms


Answer:
21120 hours long
Step-by-step explanation:
42240=20 miles
42240/2=21120h
Given the equations:
5x + y = 4
x - y = 2
Convert the standard from to the slope intercept from
The slope intercept form is : y = mx + c
Where m is the slope and c is y-intercept
So, for the equation 5x + y = 4
the slope intercept form will be:

so, the slope = m = -5
and y-intercept = c = 4
The graph of the line will be as following:
For the second equation: x - y = 2
The slope intercept form is :

The slope of the line = 1
and the y-intercept = -2
The graph of the line will be as following :
Do you see my messages ?
a
Answer:
r=8
Step-by-step explanation:
c=2
r
50.24=2
r
Divide by 2 on both sides
25.12=
r
Divide by pi/3.14 on both sides
r=8
Hope this helps!