Answer:
coefficient of determination
Step-by-step explanation:
The Coefficient of determination, R² which is the squared value of the correlation Coefficient is used to give Tha proportion of variation in the predicted / dependent variable that can be explained by the regression line. The coefficient of determination ranges from 0 to 1. Once the proportion of explained variation is obtained, the proportion of unexplained variation is ( 1 - proportion of explained variation).
Answer:
(4,6)
Step-by-step explanation:
brainleist pls?
Answer: (-8, -80)
<u>Step-by-step explanation:</u>
y = 10x
y = -3x - 104
Substitute "y" with "10x" into the second equation, then solve for x:
10x = -3x - 104
13x = -104 <em>added 3x to both sides</em>
x = -8 <em>divided both sides by 13</em>
Next, substitute -8 for x into the first equation to solve for y:
y = 10(-8)
= -80
<h2><u>Quick answer</u> :</h2>
![= \tt\$570](https://tex.z-dn.net/?f=%3D%20%5Ctt%5C%24570)
<h2><u>Answer with steps</u> :</h2>
Money Dayami earns for an hour's work = $10.50
Number of hours Dayami worked last week = 40
Money Dayami would have gotten for her work :
![=\tt 10.50 \times 40](https://tex.z-dn.net/?f=%20%3D%5Ctt%2010.50%20%5Ctimes%2040)
![=\tt \$ \: 420](https://tex.z-dn.net/?f=%20%3D%5Ctt%20%20%5C%24%20%5C%3A%20420)
Thus, money earned by Dayami for her work = $420
Total sales Dayami made last week = $2050
Money Dayami must have earned as commission :
= 6% of total sales
![= \tt6 \% \: of \: 2500](https://tex.z-dn.net/?f=%20%3D%20%5Ctt6%20%5C%25%20%5C%3A%20of%20%5C%3A%202500)
![= \tt\frac{6}{100} \times 2500](https://tex.z-dn.net/?f=%20%3D%20%20%5Ctt%5Cfrac%7B6%7D%7B100%7D%20%20%5Ctimes%202500)
![=\tt \frac{15000}{100}](https://tex.z-dn.net/?f=%20%3D%5Ctt%20%20%5Cfrac%7B15000%7D%7B100%7D%20)
![=\tt \$150](https://tex.z-dn.net/?f=%20%3D%5Ctt%20%5C%24150)
Thus, money Dayami earned as a commission = $150
Dayami's weekly gross salary last week :
![= \tt420 + 150](https://tex.z-dn.net/?f=%20%3D%20%5Ctt420%20%2B%20150)
![=\color{plum} \tt \: \$570](https://tex.z-dn.net/?f=%20%3D%5Ccolor%7Bplum%7D%20%5Ctt%20%5C%3A%20%5C%24570)
Thus, total salary = $570
Therefore, Dayami's gross salary last week =<u> $570</u>