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Arada [10]
3 years ago
5

Find the equation of the line which passes through the point (-4,12) and is perpendicular to the given line. Express your answer

in slope intercept form. The slope is -7
Mathematics
1 answer:
Vika [28.1K]3 years ago
8 0

Answer:

y = 1/7x + 88/7

Step-by-step explanation:

y = mx +b

since it is perpendicular you have to get the negative reciprocal of the slope which is 1/7

y = 1/7x + b then you would plug in your points

12 = 1/7(-4) + b and then solve for b

12 = -4/7 + b

+ 4/7

88/7 = b

y = 1/7x + 88/7

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-2/3n = 8<br> -2/3 is a fraction
garri49 [273]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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1/4 + 23/28 - 1 <br><br> please help
AnnZ [28]

Answer:

\frac{1}{14}

Step-by-step explanation:

\frac{1}{4} + \frac{23}{28} - 1 = ?

First off, let's change everything to a common denominator. This will allow us to add the fractions!

To find a common denominator, we find a number that both 4, 28, and 1 can go into. 28 is the best choice, as 4 goes into it 7 times, 28 goes into it once, and 1 goes into it 28 times.

Let's change the first fraction into a number with a denominator of 28!

\frac{1}{4} * \frac{7}{7} = \frac{7}{28}

\frac{7}{7} = 1. Multiplying a number by one doesn't change its value.

The second fraction, \frac{23}{28}, already has a denominator of 28, so we don't have to do anything with it.

Now to the third number, -1:

-1 = -\frac{1}{1} * \frac{28}{28} =  -\frac{28}{28}

Now, let's add them all up!

\frac{7}{28} + \frac{23}{28}  - \frac{28}{28} = \frac{7 + 23 - 28}{28} =  \frac{2}{28}

One last step, to simplify:

\frac{2}{28}  = \frac{1}{14}

<h2>Your answer is 1/14!</h2>
8 0
3 years ago
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Answer:

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Step-by-step explanation:

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-2 + 2= 0, then 0+18 to get to the 18°

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3 0
3 years ago
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pychu [463]

Answer:

40 miles per hour

Step-by-step explanation:

Driver a could be going 50 miles per hour

Driver c could be going 30 miles per hour

40 miles per hour is in the middle so that could be your answer

5 0
3 years ago
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