Answer:
luke is correct
Step-by-step explanation:
3 ÷ 3 ÷ 7 = 0.142857
×
= 0.142857
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: you mean, It takes 154 cubes with side lengths of 1/2 inch to fill a rectangular prism. What is the volume of the rectangular prism? Show your work or justify your
solution?
Answer: The volume of the rectangular prism is 19.25 inches³.
Step-by-step explanation: Hope this help :D
Answer:

Step-by-step explanation:
If theta is in the third quadrant, draw the diagram to easily identify the other trigonometric relations:
Solve for the missing leg of the triangle, using the Pythagorean theorem:

Therefore, for the trigonometric relationships:

Now, substitute and solve for the relations:
Answer:
B. x < -4 and x > 3
Step-by-step explanation:
Factor and set = to 0
= 0
x = - 4 or x = 3 I call these critical values
The two numbers would divide a number line into 3 intervals. Pick a value in one of the intervals and put it in the original expression. If it makes the function positive, then all the values in that interval make the function positive. If the value you picked makes the function negative, then the values in the other intervals will make the function negative. Let's pick the value of 0 and substitute it into the function
We get
+ 0 - 12 = -12 which is not positive. Therefore, all the values between -4 and 3 will make the function negative. So, the values less than -4 or greater than 3 will make the function positive. Therefore, B is the correct answer.
Another way to do this problem is to graph the function and see where the graph is above the x-axis. But, sometimes it is not easy to graph the function.