Step-by-step explanation:
5 more than a number, the sum of a number and 5, the total of a number and 5,
The regression equation is
, and it will take 31 weeks to have $50.00
<u>(a) The linear regression equation</u>
To do this, we make use of a graphing calculator;
From the graphing calculator, we have the following calculation summary:
- The sum of X = 45
- The sum of Y = 83
- Mean X = 4.5
- Mean Y = 8.3
- Sum of squares (SSX) = 82.5
- Sum of products (SP) = 128.5
The regression equation is then represented as:

Where:
and 
So, we have:

Approximate


Approximate
This means that, the regression equation is 
<u>(b) Predict the time to have $50.00</u>
This means that:

So, we have:

Subtract 1.29 from both sides

Divide both sides by 1.56

Rewrite as:

Approximate

Hence, it will take 31 weeks to have $50.00
Read more about linear regression models at:
brainly.com/question/14585820
Answer:
235.5 units^2
Step-by-step explanation:
(3.14*5^2*9)/3 = 235.5
Answer:
sup mate
Step-by-step explanation:
|x+4|=2
x+4 = +2 or x+4=-2
x= -2 or x = -6
hence we get 2 value -2 and -6 which belongs option 1 so ans is option 1
pls brainliest I'd you don't mind
Answer:
81
Step-by-step explanation:
Since ,
Wire of Length 36 cm is bent to form a square so,
perimeter of the square = Length of the wire
Hence, perimeter of the square = 36cm
Therefore, one side of the square = 36 cm ÷ 4
= 9 cm
So area of the square = side × side = 9 cm × 9cm
