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3 years ago

Question 1 of 10

Mathematics

2 answers:

Kobotan [32]3 years ago

7 0

Answer:

A. x + 5

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

Identify

$\displaystyle \frac{x^2 - 25}{x - 5}$

Step 2: Simplify

Factor: $\displaystyle \frac{(x - 5)(x + 5)}{x - 5}$
Divide: $\displaystyle x + 5$

kompoz [17]3 years ago

7 0

Answer:

x+5

Step-by-step explanation:

simplify the numerator, x²-25, to be (x+5)(x-5)

(x+5)(x-5) ÷ x-5 = x+5 because the (x-5) terms will cancel out

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Answer:

Below.

Step-by-step explanation:

16k + 9k = 130

25k = 130

k = 130/25 = 26/5

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2 years ago

Evaluate: (4/25)^1/2 in fraction

algol13

Answer:

$\left(\frac{4}{25}\right)^{\frac{1}{2}}=\frac{2}{5}$

Therefore, option C is true.

Step-by-step explanation:

Given the expression

$\left(\frac{4}{25}\right)^{\frac{1}{2}}$

$\mathrm{Apply\:exponent\:rule}:\quad \left(\frac{a}{b}\right)^c=\frac{a^c}{b^c}$

so the expression becomes

$\left(\frac{4}{25}\right)^{\frac{1}{2}}=\frac{4^{\frac{1}{2}}}{25^{\frac{1}{2}}}$

$=\frac{4^{\frac{1}{2}}}{25^{\frac{1}{2}}}$

$=\frac{2}{25^{\frac{1}{2}}}$

$=\frac{2}{5}$

Hence,

$\left(\frac{4}{25}\right)^{\frac{1}{2}}=\frac{2}{5}$

Therefore, option C is true.

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Answer:

Identifying at least one confounding variable that undermines the conclusion drawn in the fictional study is:

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Step-by-step explanation:

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Answer:

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