Which equation describes this line (1,13) (-2,4)

Mathematics

1 answer:

Sonja [21]3 years ago

3 0

Answer:

Step-by-step explanation:

First, you have to solve all of the options. The only option that makes since is D. To solve D, add 4 to both sides. That will leave you with y=3x+10. The slope of that equation is 3 and the y-intercept is 10. The line crosses the y-axis at 10, and goes up three and to the right one.

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On a number line what is the distance between -12 and 20 ??

KIM [24]

Answer: Step-by-step explanation:

In order to answer this question you will need to find 2 distances and then add them to each other.

Begin at -29. How far will you have to move to the right 29 in order to get to 0?

Now how far will you have to more to get from 0 to 100?

Draw an open number line to help you.

_____________________________________________________

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Your first distance is 29. Your second distance is 100. The total distance is 129.

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4 years ago

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masya89 [10]

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3 years ago

IF NR = 8 ft, what is the length of arc NMP. Round to the nearest tenth.

Pavlova-9 [17]

Check the picture below.

since chords NQ and MP cross the center of the circle at R, that means that those two chords are diametrical chords and the angles made by both are vertical angles and thus twin angles, namely both are 18° as you see in the picture, so the angle NMP in magenta is really 162° + 18° + 18° = 198°, and we know the radius NR is 8.

$\textit{arc's length}\\\\ s=\cfrac{r\pi \theta }{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=8\\ \theta =198 \end{cases}\implies s=\cfrac{(8)\pi (198)}{180}\implies s\approx 27.6$