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3 years ago

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:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

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

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point A(0, 8)

Point B(4, 5)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{5-8}{4-0}$
[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

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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 please solve :D

Arturiano [62]

Answer:

Step-by-step explanation:

2+2 = 4

4+4 = 8

8+32= 40

4 0

3 years ago

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