All categories

3 years ago

What is the meaning for “mean” in math?

2 answers:

7 0

Basically, in math the "mean" is a set of numbers that you add, then take the sum and divide it by how many numbers are in that set. Here is an example: 6, 7, 4, 5, 8, 9, 3. The sum of the numbers in this set is 42. However, there are 7 numbers in this set. So basically what you would do is take the sum of the numbers, 42, and divide it by the amount of numbers that are in this particular set, 7. So, 42÷7=6. So now you have figured out that the mean is 6. I hope this could be helpful!

eimsori [14]3 years ago

6 0

Mean is average of the numbers

Ex.
7,3
7+3=10/2=5

You might be interested in

Write an equation in point slope form of the line passes through the point (9,0) and has a slope of m=-3

Brut [27]

Answer:

$\huge y = - 3(x - 9)$

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

$y - y_1 = m(x - x_1)$

From the question we have the final answer as

$y - 0 = - 3(x - 9) \\ \\ \\ y = - 3(x - 9)$

Hope this helps you

7 0

3 years ago

Graph a line Slope of -5 and contains the point -3,-4

Papessa [141]

Answer:

y = -5x - 19

Step-by-step explanation:

Find the y intercept using slope intercept form [ y = mx + b ]

y = -5x + b

-4 = -5(-3) + b

-4 = 15 + b

-19 = b

y = -5x - 19

Best of Luck!

8 0

3 years ago

I need help REALLY FAST what is the distance between the points (-1, -3 3/4) and (-1, 4 1/2) ?

kodGreya [7K]

Answer:

8 1/4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Identify

Point (-1, -3.75)

Point (-1, 4.5)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-1--1)^2+(4.5--3.75)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{(0)^2+(8.25)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{0+68.0625}$
[√Radical] Add: $\displaystyle d = \sqrt{68.0625}$
[√Radical] Evaluate: $\displaystyle d = 8.25$