If you have a point you can use to find b you would have the complete equation.
Answer:
6
Step-by-step explanation:
The length form -1 to 2 is 3
The length from -3 to 2 is 5
√3²+5² = √9+25 =√36=6
The round trip was 8 miles ( 4 + 4 = 8)
The total time for the trip is 3/10 + 1/2
Rewrite 1/2 as 5/10
Now add 3/10 + 5/10 = 8/10 = 4/5 hour for the 8 mile trip.
Now to find miles per hour, divide total miles by total time:
8 miles / 4/5 hour
When you divide by a fraction flip the fraction over and multiply:
8 x 5/4 = 40/4 = 10
The average rate was 10 miles per hour.
Answer:
Hello first one is 4.
Second one is 8
Step-by-step explanation:
First one is f(0). It means you should put zero in the place of x
0 is less than 5 so you should put zero in x+4=f(x)
For the second one do like the first one.
I hope you understand
We want to use elimination to solve
y = 0 (1)
x + y = 40 (2)
Multiply (1) by -1 to eliminate y.
-y = 0 (3)
Add (2) and (3).
x + y + (-y) = 40 + 0
x = 40
Answer: Multiply by -1.
