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Zinaida [17]
3 years ago
7

Which of the following equations is equivalent to

Mathematics
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

B. y=3x+12

Step-by-step explanation:

Hi there!

We want to find out which equation is equivalent to -6x+2y=24

The equation is currently written in standard form, which is ax+by=c, where a, b, and c are integer coefficients, but a and b CANNOT equal zero

We can change the equation into slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept, as all of the answer options are in slope-intercept form.

To do that, we'll need to isolate y by itself on one side

So let's add 6x to both sides to remove it from the left side

-6x+2y=24

+6x        +6x

__________________

     2y=6x+24

Now divide both sides by 2 to get the value of y by itself (1y)

y=3x+12

The answer is B. y=3x+12

Hope this helps!

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The circumference of the circle below is 20 cm. What is the length of AB (the minor arc)?
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Answer: AB=5.27\ cm

Step-by-step explanation:

For this exercise it is important to remember that, by definition, the length of the minor arc can be calculated wih the following formula:

arc\ length=(\frac{central\ angle}{360\°})(circumference)

In this case , according to the data given in the exercise, you know that:

arc\ length=AB\\\\central\ angle=95\°\\\\circumference=20\ cm

Therefore, susbtituting those values into the formula, you get that length of AB is the following:

AB=(\frac{95\°}{360\°})(20\ cm)\\\\AB=(\frac{191}{72})(20\ cm)\\\\AB=5.27\ cm

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