1. A table can be a helpful thing to model the rate of change. It can be used by making an x and y column and listing each number underneath it like so:
x y
1 2
2 4
And so on. The rate of change for that table would be every time the x axis goes up 1, the y axis goes up 2.
2. To find the rate of change using a graph, look at the line on the graph. You can make a small triangle that starts on the line and then comes out and re-connects into the line. Like so - (look at attached picture). And as you go, you count how many you go down or up and how many you go left or right.
*Hopefully this was helpful, sorry if t wasn't!
xx, Avery
Answer:
6
Step-by-step explanation:
6.9 - 5 = 1.9
1.9 + 4.1 = 6
The sample mean is μ=105, and sample standard deviation is σₓ=
.
The Z-score is
.
Refer to standard normal distribution table.
The required probability is
![P(X>107.8)=P(Z>1.4)=1-P(Z](https://tex.z-dn.net/?f=%20P%28X%3E107.8%29%3DP%28Z%3E1.4%29%3D1-P%28Z%3C1.4%29%3D0.0808%20)
1: 11/12
2: B
3: B
4: Can't answer this with out drawing.
If Tommy can paint a fence in 7 hours, he paints 1/7 of a fence in 1 hour.
If Huck and Tommy get one fence done in an hour, Huck must be able to complete 1-(1/7)=6/7 of a fence in one hr.
6/7x=1
x=7/6
Final answer: 1 hour, 10 minutes