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2 years ago

7

2x=54 Which of the following properties is included in the justification for the steps used to solve the equation? A. division p

roperty of equality B. transitive property C. distributive property D. inverse property of addition

1 answer:

Bas_tet [7]2 years ago

7 0

The answer will be A. Division property of equality

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3 years ago

Which of the following is a factor of 7x2 - 12x - 4? (6 points)

grin007 [14]

Answer:

We conclude that 'None of the above' is the correct answer.

Step-by-step explanation:

Given the expression

$7x^2\:-\:12x\:-\:4$

Breaking the expression into groups

$7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)$

Factor out $x$ from $7x^2\:+\:2x$

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Factor out -2 from $\left(-14x-4\right)$

$=-2\left(7x+2\right)$

so the expression becomes

$7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)$

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Factor out the common term $7x+2$

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2 years ago

PLEASE HELP I FORGOT EVERYTHING

Phantasy [73]

$\huge{\textbf{\textsf{{\color{navy}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}$

$\frac{2}{x} = \frac{5}{3}$

By doing cross multiplication.

$6 = 5x \\ x = \frac{6}{5} \\ x = 1.2$

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1 year ago

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Which student correctly used guess and check to determine the unknown number?

Alenkasestr [34]

<h2>Explanation:</h2><h2></h2>

Hello! Remember you need to write complete questions in order to get good and exact answers. Here we know nothing about the students so I can only help you providing the correct steps to find <em>the product of a number and eight is 104:</em>

<em />

Let that number be $n$ , then the statement can be written in a mathematical language as follows:

$n\times 8=104 \\ \\ \\ \text{Dividing both sides by 8:} \\ \\ \frac{n\times 8}{8}=\frac{104}{8} \\ \\ \boxed{n=13}$

Finally, <em>the unknown number is 13</em>

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