Part 1:
We have the following expression:
(3-6n5-8n4) - (- 6n4-3n-8n5)
Rewriting we have:
3-6n5-8n4 + 6n4 + 3n + 8n5
Adding similar terms we have:
2n5 - 2n4 + 3n + 3
Part 2:
We have the following equation:
4x2-2x-5 = 0
Using resolver we have to:
x = (- b +/- root (b2 - 4ac)) / (2a)
The solutions are:
x1 = 1/4 - root (21) / 4
x2 = 1/4 + root (21) / 4
Use rise over run formula
(y2-y1)/(x2-x1)
(3--3)/(4-1)
6/3
2 is the slope of the line
Answer:
270 Miles
Step-by-step explanation:
18 miles per gallon
15 gallons
Basically count 18, 15 times
18*15=270
The van can travel 270 miles
