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Fed [463]
3 years ago
12

Simplify the expression: –7(5 − u)

Mathematics
2 answers:
Serggg [28]3 years ago
8 0

Answer:

-35+ 7u

Step-by-step explanation:

Distribution Property

distribute the first time by the 2 terms in the parenthesis

-7×5 and -7u

-35 - (-7u)

-35+ 7u

katovenus [111]3 years ago
7 0

Answer:

-7(5-u)

Step-by-step explanation:

-7(5-u)

-7x5  -7x-u

-35+7u

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Final Answer for this question after simplifying is 5/18
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3 years ago
Rút gọn biểu thức sau
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Answer:

Step-by-step explanation:

\left(3+\frac{\frac{9}{2}}{\sqrt{5}}\right)\left(2-\sqrt{5}\right)n+\left(3-\frac{\frac{9}{2}}{\sqrt{5}}\right)\left(2+\sqrt{5}\right)

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{\frac{b}{c}}{a}=\frac{b}{c\:\times \:a}

=\left(\frac{9}{2\sqrt{5}}+3\right)\left(2-\sqrt{5}\right)n+\left(-\frac{\frac{9}{2}}{\sqrt{5}}+3\right)\left(2+\sqrt{5}\right)

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{\frac{b}{c}}{a}=\frac{b}{c\:\times \:a}

=\left(\frac{9}{2\sqrt{5}}+3\right)\left(2-\sqrt{5}\right)n+\left(-\frac{9}{2\sqrt{5}}+3\right)\left(2+\sqrt{5}\right)

=\frac{-12-9\sqrt{5}}{2\sqrt{5}}n+6n+\left(3-\frac{9}{2\sqrt{5}}\right)\left(2+\sqrt{5}\right)

=\frac{-12-9\sqrt{5}}{2\sqrt{5}}n+6n+\frac{12-9\sqrt{5}}{2\sqrt{5}}+6

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3 years ago
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Answer:

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3 years ago
Calculate the slope between the coordinates (-2,3) and (2,-1) using the slope formula.
matrenka [14]

Answer:

slope = -1

Step-by-step explanation:

First, you need to know the slope formula: <u>y2 - y1</u>

                                                                       x2 - x1

Now recognize the first point (-2,3) as (x1,y1) and the second point (2,-1) as (x2,y2)

Now that you have done that, plug in the numbers into the slope equation.

Which should look like this:      <u>-1 - 3</u>

                                                   2 - -2

Now that your equation looks like this, recognize the denominator, we should know that a negative plus a negative equals a positive. So instead of subtracting the denominator of the equation, we are going to add the two numbers together, because x1 is negative. Now solve, you should get the answer -1.

                       <u>-1 - 3</u>                        <u>-4</u>    = -1

                       2 + 2                        4

Hope this was helpful!

7 0
3 years ago
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