Answer:
The last one
Step-by-step explanation:
in the second part, x2 could to pull out as x
Regular pay:
45x40x17=30,600
Overtime:
45x6x17x1.5=2142
Total payroll= 30,600+2142=32,742
Total overtime/total payroll * 100 =
2142/32,742 *100 = 6.5%
First, part A is asking you for the association or correlation of the scatter plot based on the best fit line, or how strongly the scatter plot correlates to the best fit line. You have to find the correlation coefficient by using your graphing calculator for this (let me know if you need help with this). Then, if your correlation coefficient is positive and from 0.8 to 1, then there is a strong and positive correlation. If the correlation coefficient is positive and is from 0.4 to 0.7 (these are all approximate values), then the association is moderate and positive. The remaining range is for a weak and positive correlation. Everything is the same for a negative correlation coefficient, except for how the sign of the ranges and the correlation coefficient is negative.
I'm typing up how to do Part B now. :D
Answer:
±
Step-by-step explanation:
We need to find 
.
Now, we know that 
and 
Therefore: 
±
Summarizing, the real square roots of 144 are ±
