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irinina [24]
3 years ago
14

How to solve the equation: -2(-3x-4)=14​

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

1

Step-by-step explanation:

-2(-3x-4)=14

6x + 8 = 14

6x= 14-8

6x=6

x=1

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Mean = 40 median = 37.5 mode = 30
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1 (-2,2) Write the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the poi
lozanna [386]

Answer:

y = -5x - 8

Step-by-step explanation:

Take the points (-5,-4) and (0,-3) plug them into this formula to get the slope.

\frac{y2 - y1 }{x2 - x1}

Now plug in your points

\frac{-3 - (-4)}{0 - (-5)} \\\\\frac{1}{5}

Since you're slope is 1/5 the slope of the perpendicular line is going to be the totally opposite -5 is the slope of the perpendicular line.

Now plug in -5 and the point (-2,2) into y = mx + b to get the y-intercept

2 = -5(-2) + b (b represents the y-intercept)

2 = 10 + b (subtract 10 from both sides)

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The perpendicular line looks like this y = -5x - 8

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7 0
3 years ago
Will mark brainliest has to be correct. ​
yarga [219]
Answer:
x=12
Step by step explanation:

7 0
3 years ago
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OverLord2011 [107]

\bf Step-by-step~explanation:

\bf Step~1:

To solve this, we have to simplify these numbers by adding like terms.

42x^2+34-8-12\\\\(34-8=26, 26-12=14)\\\\42x^2+14\\

\bf Step~2:

Next, we factor our expression. To do so, we look for the greatest common factor of 42 and 14, which is 14. We know that because 42 divided by 14 is 3.

\frac{42}{14} =3

\boxed{ \bf Our~final~answer: 14(3x^2 + 1)}

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Answer: (5x2 + 2)(3x – 1)

Step-by-step explanation:

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