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Step2247 [10]
3 years ago
7

What are the measures of each interior and exterior angles of regular quadrilateral MNOP?

Mathematics
1 answer:
stiks02 [169]3 years ago
8 0

Answer:

A regular polygon is a polygon that is equilateral and equiangular.

The only regular quadrilateral is the square.

We know that all the interior angles of a square are 90° each, so we are fine with that.

Now, for the exterior angles.

If we fix our position in the vertex, we can do from one side, to the same side, a full rotation of 360°.

Now, if we only do an external rotation, this means, from one side to other side, we will do a rotation of 360° minus the interior angle:

this is:

360° - 90° = 270°

Below is an image as a guide of this.

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SOMEONE PLEASE HELP MEEEE
AURORKA [14]

Answer:

-180^{\circ}

Step-by-step explanation:

Lines form 180 degrees on either side. The negative sign simply implies direction (clockwise instead of counter-clockwise), which is negligible as 180 is exactly half of 360 so you'd form the same line.

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Solve the given differential equation by using an appropriate substitution. The DE is of the form dy/dx = f(Ax + By + C), which
Mariana [72]

d<em>y</em>/d<em>x</em> = 4 + √(<em>y</em> - 4<em>x</em> + 6)

Make a substitution of <em>v(x)</em> = <em>y(x)</em> - 4<em>x</em> + 6, so that d<em>v</em>/d<em>x</em> = d<em>y</em>/d<em>x</em> - 4. Then the DE becomes

d<em>v</em>/d<em>x</em> + 4 = 4 + √<em>v</em>

d<em>v</em>/d<em>x</em> = √<em>v</em>

which is separable as

d<em>v</em>/√<em>v</em> = d<em>x</em>

Integrating both sides gives

2√<em>v</em> = <em>x</em> + <em>C</em>

Get the solution back in terms of <em>y</em> :

2√(<em>y</em> - 4<em>x</em> + 6) = <em>x</em> + <em>C</em>

You can go on to solve for <em>y</em> explicitly if you want.

√(<em>y</em> - 4<em>x</em> + 6) = <em>x</em>/2 + <em>C</em>

<em>y</em> - 4<em>x</em> + 6 = (<em>x</em>/2 + <em>C </em>)²

<em>y</em> = 4<em>x</em> - 6 + (<em>x</em>/2 + <em>C </em>)²

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3 years ago
HURRRRYYYY PLLSSS!!!! What are the slope and the y-intercept of the linear function that is represented by the table?
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Answer: The slope is   -2/5 and the y-intercept is -1/3

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1 year ago
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PLEASE HELP ME I NEED THIS REALLY BAD ALL MULT CHOICE PLEASE SHOW SOME WORK
aivan3 [116]

b. 24.4. Using a squared + b squared = c squared you get 24.4

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Can someone answer questions 8-14 asap and show their work on a piece of paper thanks
Stells [14]
8. So here, you know the angle of elevation and the adjacent, and you're looking for the opposite. So first, put the angle into a tan calculator, because tan is the opposite/adjacent.

What you get is 8.64 ish.

So now, since you know the adjacent, just multiply the two together. 

8.64 * 20 = 172.8, or about 173.

9. a.  You can use the pythagorean's theorem to find this, or a ^ 2 + b ^ 2 = c ^ 2.

Basically, as long as you know the two legs' lengths in a right triangle, or a and b, you can find the hypotenuse, or c.

The two legs' lengths are 35 and 58.

So 35 ^ 2 + 58 ^ 2 = c ^ 2

1225 + 3364 = c ^ 2

4589 = c ^ 2

Then, you can square root both sides

\sqrt{4589} = c

About 68 = c

68 km

b. To do this, just divide the two together, to find the ratio of opposite / hypotenuse (sin), or 58 / 68, which equals about 0.85

Put that in the sin ^ -1 in a calculator to get about 58.211, or 58 degrees.

10. I'm sure there's a more efficient way to do this that I don't know about but I'm stupid. 

a. Whelp, me not knowing how to find the angle of indication/elevation leads to me just using tan because why not. 3.83 is about the answer, or 4.

b. Just multiply 15 by 15, to get 225 m.

11. umm, is there a b to this question?

a: sorry I don't know how to do this one :(

12. a. pythagorean's theorem, a ^ 2 + b ^ 2 = 5.6 ^ 2

Or a ^ 2 + b ^ 2 = 31.36

Since a = b,

a ^ 2 + a ^ 2 = 31.36

2a^{2} = 31.36

/2                             /2

a ^ 2 = 15.68

a = \sqrt{15.68}

about 3.96 = a

3.96 + 3.96 + 5.6 = 13.52

b. Use sin here. 28 degrees in one of those sin calculators is 0.47.

That means the opposite / hypotenuse = 0.47.

So just multiply 0.47 by the hypotenuse, or 10.7, to get about 5.

So the short side of the rectangle is 5.

So you can either do the same with cosine or use the pythagorean's theorem. Either way, you should get about 9.4.

So the perimeter is 5 + 5 + 9.4 + 9.4 = 28.8 (ish)

13. To find the outside length of one of the four triangles or the hypotenuse, since you know the opposite, use sine. Sine is opposite / hypotenuse. 50 degrees in a sin thing is about 0.77. So that means 1.4 / hypotenuse = 0.77, or 1.4 / 0.77, which equals about 1.82.

So the length of the hypotenuse is about 1.82. That times 4 is 7.28, or about 7.3.

14. I'm sorry I don't know how to do this one, I can try tho :(
6 0
3 years ago
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