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lutik1710 [3]
3 years ago
8

Simplify the sum (complex fraction)

Mathematics
2 answers:
andrey2020 [161]3 years ago
5 0
I got 2d^4-2d^2-5/d^2

AVprozaik [17]3 years ago
5 0
The correct answer is 2d - 2
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Solve the equation:<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B21%20-%204x%7D%7B9%7D" id="TexFormula1" title="\frac{21 - 4x
schepotkina [342]

Answer:

x = -\frac{12}{5}

Step-by-step explanation:

To solve the equation, isolate x. Whatever you do to isolate x one on side, you must do to the other.  

1) Multiply both sides by 9 to get rid of the fractions.  

\frac{21-4x}{9} +\frac{8x+15}{3} = 2 \\21-4x + 3(8x + 15) =18 \\

2) Distribute the 3 to 8x and 15. Then, combine like terms.

21-4x + 24x + 45 = 18 \\66 + 20x = 18

3) Move the 66 to the other side, subtracting 18 by 66, then divide each side by 20 to finally isolate x.

20x = -48\\x = -\frac{48}{20} \\x =- \frac{12}{5}

Thus, x = -\frac{12}{5}.

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3 years ago
Solve the inequality - 2x + 1 &gt; 2x - 11
mylen [45]

Answer:

x<3

Step-by-step explanation:

Let us move all the x values to one side and the numerical values to the other:

1>2x+2x-11

1+11>2x+2x

12>4x

3>x or x<3

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3 years ago
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shane spent ¹/₉ of his allowance on snacks, ⅓ on fruits and saved the remainder. what fraction did he save?​
Dmitrij [34]

Answer:

5/9

Step-by-step explanation:

1/3 is converted to 3/9 and then added to 1/9 so that is 4/9 and the 9/9 subtract 4/9 is 5/9

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Describe the transformation that takes f (x) = x + 1 To g (x) = -x + 4. [ Please No Plagiarism and Will mark brainliest . .​
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Answer:

fliped over y axis and moved up 3

Step-by-step explanation:

fliped over y axis (changed x to -x) and moved up 3 (changed +1 to +4)

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P and Q are points on the line 3y - 4x = 12
Lorico [155]

Answer:

Step-by-step explanation:

Since the coordinates of P are (0, 1), this makes P the y-intercept of that line. The y-intercept exists where x = 0. And in the coordinate (0, 1), x does in fact equal 0.

Since the one coordinate given in Q is (?, 0), this means that Q is the x-intercept of the line. The x-intercept exists where y = 0. And in the coordinate (?, 0), y does in fact equal 0. So in order to solve for the x coordinate of Q, we plug in a 0 for y and solve for x:

3(0) - 4x = 12 and

-4x = 12 so

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