What sample fairly represents the population? Check all that apply

Mathematics

2 answers:

Klio2033 [76]4 years ago

7 0

Answer: B: calling every third person on the soccer team and E: taking a poll in the lunch room. Just took the quiz

Fiesta28 [93]4 years ago

4 0

Answer: E
Taking a poll in the lunchroom would be the most accurate population sample.

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Question on picture!!!!!!!!

Nat2105 [25]

Answer:

1st option

Step-by-step explanation:

Given y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use (3, 8 ) , that is x = 3 when y = 8 , then

8 = $\frac{k}{3}$ ( multiply both sides by 3 )

24 = k

y = $\frac{24}{x}$ ← equation of variation

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The temperature in Berlin is -7 °C and the temperature in Istanbul is -3 °C.

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2 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: $\displaystyle d = 8.25$