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3 years ago

Simplify completely"""

Mathematics

1 answer:

Wewaii [24]3 years ago

4 0

Answer:

$\displaystyle \frac{2(x + 2)}{x - 10}$

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

$\displaystyle \frac{2x^2 + 20x + 32}{x^2 - 2x - 80}$

Step 2: Simplify

[Fraction] Factor numerator: $\displaystyle \frac{2(x + 2)(x + 8)}{x^2 - 2x - 80}$
[Fraction] Factor denominator: $\displaystyle \frac{2(x + 2)(x + 8)}{(x - 10)(x + 8)}$
[Fraction] Divide: $\displaystyle \frac{2(x + 2)}{x - 10}$

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3 years ago

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3 years ago

Let F(x)=-7x-12 and g(x)=13-3x. What is f-g?

Oxana [17]

Answer:

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Step-by-step explanation:

Given:

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Required:

$(f - g)x$

SOLUTION:

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4 years ago

The rent in an urban neighborhood is normally distributed. The mean is $650 per month with a standarddeviation of $50. Estimate

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Solution

The z-score, also referred to as standard score, z-value, and normal score, among other things, is a dimensionless quantity that is used to indicate the signed, fractional, number of standard deviations by which an event is above the mean value being measured. Values above the mean have positive z-scores, while values below the mean have negative z-scores.

Mean is $650

Standard deviation = $50

$\begin{gathered} \mu=650 \\ \sigma=50 \end{gathered}$ $Z=\frac{x-\mu}{\sigma}=\frac{600-650}{50}=-\frac{50}{50}=-1$ $Z=\frac{x-\mu}{\sigma}=\frac{750-650}{50}=\frac{100}{50}=2$

[tex]P(-1

Therefore the estimated percent of apartment residents = 81.86%

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1 year ago

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