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irakobra [83]
3 years ago
14

Find the lengths of x I tried everything I still got it wrong

Mathematics
1 answer:
Arlecino [84]3 years ago
7 0

if the degrees in this triangle are truly 90-45-45, then the two unknown lengths are the same

and the pythagorean theorem holds anyways: a² + b² = c², where c is the longest side in a right triangle.

c is 16, so 16² is 256

2* a² = 256

I wrote 2 times s because a and b are of same length

devide each side by 2

a² = 128

take the root

a and b are:

\sqrt{128}  = 11.31378499

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Answer:

Step-by-step explanation:

Twelve

You are correct, but I have a small comment.

As far as I can see, you have both 12 and 13 correct. The short way to do 12 is just to divide 72 into 360

360 / 72 = 5

The more general formula  is 360 / central angle = # of sides.

What the question means is that if your start with a polygon (it is a regular polygon by the way), and rotate it around its center, how many sides does it have in order that when you go through 72 degrees, the figure looks like it did when you started.

If the polygon is completely unmarked, then the idea is that it will look like you haven't done anything to the polygon even though you have rotated it 72 degrees.

The way you did 13 is exactly how it should be done.

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4 years ago
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Answer:

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Step-by-step explanation:

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Distance between two point = √(-4 + 1)² + (-6 + 4)²

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Distance between two point = √9 + 4

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Marina CMI [18]
3/5 I think sorry if I’m wrong
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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multiply the price by .03

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