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Nastasia [14]
3 years ago
10

Let a, b, c be the three observations. The mean of these observations is.

Mathematics
1 answer:
balu736 [363]3 years ago
6 0

Answer:  a+b+c/3

Step-by-step explanation:

mean= sum of all values/number of values

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Please hurry I need to pass this class
Dvinal [7]

Answer:

\displaystyle m=\frac{-3}{4}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Reading a Cartesian plane
  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point A(0, 8)

Point B(4, 5)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                            \displaystyle m=\frac{5-8}{4-0}
  2. [Fraction] Subtract:                                                                                         \displaystyle m=\frac{-3}{4}
4 0
3 years ago
For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.
allochka39001 [22]

It is direct variation if x/y is a constant.

x/y = 2 / -6.6 = -1/3.3

y/x = -9.9/3 = -3.3

y/x = -6.6/ 2 = -3.3

y/x = -13.2/ 3 = -3.3

y/x = -16.2/ 3 = -3.24

So its not exactly direct variation as the last values is slightly different from the first 3.


4 0
3 years ago
Write a number that is greater than 8.604 but less than 8.643
Aliun [14]
8.605
This number is bigger than 6.604 and it is smaller than 8.643
:)
6 0
3 years ago
Read 2 more answers
A man gathers nuts in a forest. Each time he finds a nut, there is a 20% chance it is a pecan and a 35% chance it is a walnut.
gladu [14]
Either a pecan or walnut means you add the probabilities together

20% plus 35% equals 55%
7 0
3 years ago
2+2+4+32<br> please solve :D
Arturiano [62]

Answer:

40

Step-by-step explanation:

2+2 = 4

4+4 = 8

8+32= 40

4 0
3 years ago
Read 2 more answers
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