**Step-by-step explanation:**

Given

If x = 4 Then

3x + 1 = 3 * 4 +1 = 12 + 1 = 13

The answer should be 13.

**Answer:**

1.5

**Step-by-step explanation:**

Attached to this answer is the diagram of the box plot described in the question, and the means from the plot are calculated thus;

Students; no. of siblings

student 0 2

student 1 4

student 2 7

student 3 5

student 4 2

Total 20

Mean no. of siblings = (total number of siblings) ÷ (total number of students)

Note that number of students here are the once that had at least one sibling, others without siblings are not used in the calculation, hence 5 students (student-0 to student-4) make up total number of students, while the remaining 4 students (student-4 to student-9) are disregarded.

Therefore, mean = 20 ÷ 5 = 4 siblings.

**Answer:**

**Step-by-step explanation:**

The given statement is;: **'I think of a number, multiply it by 3, add 4 & square the result.'**

At first, let's take the unknown number as **'x' **. (asked in the question).

So, the number we think about = x

Now, we need to multiply it by 3. So,

In the next part, we need to add 4 to it so,

Now, by squaring the result, we'll get the expression as,

<u>**____________**</u>

Hope it helps!

The estimated **regression equation **is Price = bo +b1Age+ b2Mileage + b3Cylinders

<h3>How to determine the regression equation?</h3>

We have:

- Predictor variables = 3
- Variable 1 = Age
- Variable 2 = Mileage
- Variable 3 = Cylinders

The **regression equation **is estimated using:

Price = bo +b1 * Variable 1+ b2 * Variable 2 + b3 * Variable 3

Substitute the variable parameters

Price = bo +b1Age+ b2Mileage + b3Cylinders

Hence, the estimated **regression equation **is Price = bo +b1Age+ b2Mileage + b3Cylinders

Read more about **regression equation **at:

brainly.com/question/25987747

#SPJ12

Hi Dez123,

Graph the system of equations. {−x+2y=−8 3x−y=−6

−y= −3x + 8

6x − 2y = 8

Multiply y = 3x − 8 by -1

y = 3x − 8

6x − 2y = 8

y = 3x − 8

−2y = −6x + 8

y = 3x − 8

**y = 3x − 4**

The graph is in the picture below!

Hope This Helps!