The answer is the temperature goes down 2.8° every hour and the expression is x=-11.2/4 because 4 is how many hours between 6pm and 10pm and its -11.2 because that was how much the temperature dropped from 6pm to 10pm
When you solve this equation, you can plug in 2x + 10 for y, so you would have 2x + 10 = 2x +4. When you solve for x, you notice that you end up getting 10 = 4, which is impossible!
There are NO solutions for this, because 10 will never equal 4.
The slope of the first line is 2.
The slop of the second line is also 2.
The lines ARE parallel- they have the same slope!
They do not have the same y-intercept, one of them crosses at y=4, and the other crosses at y=10.
Since the lines are parallel, they will never cross, which is why there are no solutions for this equation.
Hope this helps! :)
Answer:
Step-by-step explanation:
hello :
The graph of y =-3x+4 is the line
Step-by-step explanation:
a.c=2πr
c=2x3.142x50
c=100x3.142
c=0.03142
b.c=2πr
286=2x31/7xr
286=62r/7
286x7=62r
2002=62r
2002/62=r
32.3=r
r=32.3
