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IceJOKER [234]
3 years ago
11

What is the mapping rule for a 45 degree rotation?

Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0

Step-by-step explanation:

Imagine a line segment on a coordinate plane that rotates around the origin like a clock hand. If it travels 45° (or any positive degree angle), it will travel in a counterclockwise direction. If it rotates -45° degrees (or any negative degree angle), it will travel in a clockwise direction.

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Find the smallest positive integer x which is greater than 1 and relatively prime to 120 (recall that relatively prime means tha
Vlad1618 [11]

Answer: 7

Explanation:

List out the factors of 120 until we hit a gap

1,2,3,4,5,6,8

Note that 7 is not shown above. We can see that 120/7 = 17.14 approximately meaning that 7 doesn't go evenly into 120. So this is why 7 isn't a factor. Something like 3 is a factor because 120/3 = 40 is a whole number result.

Also, 7 is prime. The only factors of 7 are 1 and itself. This means that 7 and 120 do not have any common factors other than 1. The GCF of 7 and 120 is 1, leading to the two numbers being relatively prime

Side note: The term "coprime" is sometimes used in place of "relatively prime"

7 0
2 years ago
Math- find the angle OPR.
andrey2020 [161]

Answer:

is there more info to this like did they give you the angles value or something?

Step-by-step explanation:

5 0
3 years ago
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What is 9+10 haha yes
Lena [83]

Answer:

21 no just kidding 19

Step-by-step explanation:

10

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4 0
3 years ago
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Evaluate if x = -4.<br><br> - 3x +7
mina [271]

Replace x with -4:

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Answer: 19

5 0
2 years ago
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First examples pt 1 no one answer
andrew11 [14]

Answer:

  It takes the second worker 11 hours to do the job alone  

Step-by-step explanation:

The problem tells you how to work it.

  \dfrac{1}{11}+\dfrac{1}{x}=\dfrac{2}{11}\\\\x+11=2x \qquad\text{multiply by 11x}\\\\11=x \qquad\text{subtract x}

x = 11 tells you the second worker takes 11 hours to do the job alone.

_____

You can also work directly with the fractions. Subtract 1/11 and you have ...

  1/x = 1/11

It should not be a real stretch to see that x=11. If you need, you can multiply both sides by 11x to get 11=x.

3 0
3 years ago
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