2(4^2 + 1) = 2(16+1) = 2(17) = 34
The answer is the third option.
The solution is in the pdf file attached. Please, let me know if you can follow the steps.
Answer: 30
Step-by-step explanation: when you look at the x value of 9, the y value on the best fit line would be 30
Since y is 5.2 you can substitute it in your equations 5.2 = -5x - 40 then you do things like normal add 40 in both sides and divide -5 in both sides you get 9.04
We know that you have 9 quarters
We also know that you have 21 pennies
Probability is represented as "determined factor" / total
First, we need to find the total amount of possibilities. This means that you have to add 21 and 9
21 + 9 = 30
We want to know the probability of picking a penny out of the hat, so you would represent this as:
21/30
To turn it into a percent, divide 21 by 30.
21 ÷ 30 = 0.7
0.7 is equivalent to 70% as a percent
This means that you will have a 70% chance of picking a penny out
Answer: 70%
