C because the difference is in the square
Answer:
... pie 3/4. Quick Definition: A Mixed Fraction is a whole number and a fraction combined, ... To make it easy to add and subtract them, just convert to Improper Fractions first: ... Example: What is 2 3 4 + 3 1 2 ? ... Example: What is 3 5 8 + 1 3 4 ... Make same denominator: 7 4 becomes 14 8
Step-by-step explanation:
Answer:
-0.20
Step-by-step explanation:
Given the data:
Age at auction (x) ____price sold (y)
391
51
32
84
47
104
88
43
470
51
Y:
76.9
95.4
86.3
49.3
80
57
47.8
80
70
86.9
General formula for a simple linear regression :
y = ab + c
Where ;
y = predicted variable ; a = slope / gradient
b = predictor / independent variable ; c = intercept
From the result obtained from the calculator :
y = -0.01246X + 74.65552
Correlation Coefficient is used to measure the strength of relationship between linear variables.
The regression Coefficient obtained is - 0.20
This shows that there is a weak negative correlation between the age at auction and the price at which painting is sold. This is because the negative sign means that value of y decreases as x increases or vice versa, however, due to a correlation vale which is closer to 0 than 1 or - 1, we can conclude that the negative relationship between the variables is weak.
If you look closely at the graph 10 dollars are the price of 5 tickets and so we could use 2T = P as a expression and so if you plug 20 into T it would be 2(20)=P and it would become a evident 40=P as the answer (40)
Answer:
16 cars.
Step-by-step explanation:
Let x represent number of sold cars.
We have been that 1st company pays a salary of $8000 plus a commission of $900 for each car sold. We can represent this information in an expression as:
We are also told that second company pays a salary of $14400 plus a commission of $500 for each car sold. We can represent this information in an expression as:
To find the number of cars sold, which will make the total pay the same, we will equate both expressions and solve for x as:
Therefore, 16 cars would need to be sold to make the total pay the same.
