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Vaselesa [24]
2 years ago
7

What is the answer to −3(2w+6)−4 ?

Mathematics
2 answers:
hodyreva [135]2 years ago
6 0
First you would distribute and get -6w-18=12 and w=5
malfutka [58]2 years ago
5 0

If you are trying to find w, then we would assume that all of this is equal to 0, and we would have to rewrite this equation.

-3(2w+6)-4=0

Now we are going to use the distribution property, to distribute the -4 to everything inside of the parenthesis. And that will get rid of the 4.

-3((2w*4)+(6*4))=0

next we are going to find what 2w*4 and 6*4 equal.

-3(8w+24)=0

Now this is an easier equation to work with. Divide both sides by -3, because whatever we do to one side we must do to the other.That will cross out the -3 on the left of the equation. And 0/-3 is equal to 0.

(8w+24)=0 or 8w+24=0

Now this is a 2 step equation, my favourite kind. we are going to subtract 24 from both sides. That will cancel out the +24 on the left.

8w=-24

And finally we divide both sides by 8. leaving us with

w=-24/8 or -3

<h2>So we now know that -3(2w+6)-4 is equal to <u><em>w=-3</em></u></h2>

I hope this helps. If you need any help with this or any other question, just ask. I am here to help.

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What is the equation of the line that passes through the point (4, 3) and is perpendicular to the line x + y = 4?
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ANSWER

y - x = - 1

EXPLANATION

The required equation passes through:

(4,3) and is perpendicular to x+y=4.

Rewrite the given equation in slope-intercept form:

y = - x + 4

The slope of this line is -1.

The slope of the required line is perpendicular to this line, so we find the negative reciprocal of this slope.

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ANSWERRRR QUICKKKK PLEASEEEE
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Answer: sqrt(2)/2  which is choice D

======================================================

Explanation

(3pi/4) radians converts to 135 degrees after multiplying by the conversion factor (180/pi).

The angle 135 degrees is in quadrant 2. We subtract the angle 135 from 180 to find the reference angle

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Alternatively, you can use a unit circle. Refer to the diagram below. In red, I've circled the angle 3pi/4 radians. The terminal point for this angle has a y coordinate of sqrt(2)/2

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