We know that
[<span>the area of the rectangle]=L*W
L=1/3 yd
W=2/3 yd
</span>[the area of the rectangle]=1/3*2/3---------> 2/9 yd²
the answer is 2/9 yd²
The quadratic regression equation for this data set is
.
<h3>
What is the general form of a quadratic equation?</h3>
The general form of the quadratic equation is given by;

Where; a, b, and c are the constants.
x; 0 1 2 3 4 5
y; 2.82 3. 29 3. 46 3. 33 2. 88 2. 24
From the table when the value of x = 0 the value of y is 2.82.
Then,

From the table when the value of x = 3 the value of y is 3.33.

From the table when the value of x = 5 the value of y is 2.24.

And the value of b is;

Therefore,
The quadratic regression equation for this data set is;

Hence, the quadratic regression equation for this data set is
.
To know more about the Quadratic equation click the link given below.
brainly.com/question/14935613
The answer for question 4:
a) 3(3n-1)=9n-3
b) 9n-3=96
9n=96+3
9n=99
n=11
-11/2
Multiply 5 and 2, then add 1
-11/2, Hope this helps!