The quadratic regression equation of the table of values is y = 0.71x² - 5.04x + 3.76
<h3>How to determine the regression equation?</h3>
The table of values is given as:
x: 0 1 2 3 4 5 6
y: 4.1 -0.9 -3.9 -5.1 -4.1 -4.1 -1.1
To determine the quadratic regression equation, we make use of a graphing calculator
From the graphing calculator, we have the following calculation summary:
a = 0.7, b = -5.04 and c = 3.76
A quadratic regression equation is represented as:
y = ax² + bx + c
Hence, the quadratic regression equation of the table of values is y = 0.71x² - 5.04x + 3.76
Read more about regression equations at:
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X^5-15x^4y+90x^3y^2-270x^2y^3+405xy^4-243y^5
Answer:
Step-by-step explanation:
Let c represent the number of child tickets sold. Then 2c-14 is the number of adult tickets sold, and total revenue is ...
5c +8(2c-14) = 728
21c -112 = 728 . . . . . . simplify
21c = 840 . . . . . . . . . . add 112
c = 40 . . . . . . . . . . . . . divide by 21
2c-14 = 66 . . . . . . . . . number of adult tickets sold
66 adult tickets and 40 child tickets were sold.
Answer:
x = 4
Step-by-step explanation:
The absolute value of 5x is still 5x.
5x - 2 = 18
Add 2 to both sides
5x = 20
Divide both sides by 5
x = 4
Answer:
B. x=4
Step-by-step explanation:
It should be the short front length times the total length of the tangent.
6(16)=8(8+x)
96=64+8x
32=8x
4=x