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2 years ago

A sample is random sample is valid

Mathematics

2 answers:

wlad13 [49]2 years ago

8 0

If the sample is random, it is not valid.

jenyasd209 [6]2 years ago

6 0

A sample can be valid.
But, a random sample can sometimes be valid.

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Simplify completely''''

34kurt

Answer:

$\displaystyle \frac{2(x + 3)}{5x - 2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Terms/Coefficients
Factoring

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{2x^2 + 16x + 30}{5x^2 + 13x - 6}$

Step 2: Simplify

[Fraction] Factor numerator: $\displaystyle \frac{2(x + 3)(x + 5)}{5x^2 + 13x - 6}$
[Fraction] Factor denominator: $\displaystyle \frac{2(x + 3)(x + 5)}{(x + 3)(5x - 2)}$
[Fraction] Divide: $\displaystyle \frac{2(x + 3)}{5x - 2}$

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2 years ago

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avanturin [10]

Answer: x=3/2

Step-by-step explanation:

Multiply the parentheses by 2/3. 9=2/3x+8.

Multiply both sides by 3 . 27=2x+24

Move the term. When moved to the left side it changes from positive to a negative. -2x=24-27.

-2x=-3

Divide both sides by -2

x=3/2 (x=1 1/2, x=1.5)

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3 years ago

I need help with this slope

Alex73 [517]

Answer:

Step-by-step explanation:

First, the y-intercept is -3 so from -3 the slop to the next point is 4/1.

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1 year ago

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