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Anit [1.1K]
3 years ago
8

Can someone help me? Does the figure have rotational symmetry? If it does find the angle of rotation

Mathematics
2 answers:
WITCHER [35]3 years ago
5 0
Yes there is rotational symmetry and you can rotate 5 times in a complete circle.

so 360/5 = 72 degrees or C
aksik [14]3 years ago
4 0
It would be the first one, because it is rotational and the angle size isn acute so it'd be 30 degrees. You should try to read the whole lesson to actually understand what you're learning. :)



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What is the equation for twice a number gives 10
bearhunter [10]

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Step-by-step explanation:5×2=10

5 doubled is 10

5+5=10

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x=8/g

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3 years ago
Round 0.578 to the nearest tenth
Deffense [45]

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After a storm damages the community center, Shanika and her friends hold fundraising
Inessa [10]

Answer:

The total amount of money Shanika and her friends want to raise is <u>$2400</u>.

Step-by-step explanation:

Given:

After a storm damages the community center, Shanika and her friends hold fundraising.

After the first event, they raise $240, which is 10% of the  total amount that they want to raise.

Now, to find the total amount of money that Shanika and her friends want to raise.

Let the total amount of money that Shanika and her friends want to raise be x.

As given 10% of fundraise is $240.

So, according to question:

10\%\ of\ x=\$240.

\frac{10}{100}\times x=240

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<em>Multiplying both sides by 100 we get:</em>

10x=24000.

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x=\$2400.

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3 0
3 years ago
Select the equation that contains the point (4, -8), and in which the graph of the line has a positive slope.
BaLLatris [955]
Okay, let me just make this a little clearer. Hopefully, this is what you meant:

A. y - 8 = -4(x + 4)
B. y - 8 = 4(x + 4)
C. y + 8 = 4(x - 4)
D. y + 8 = -4(x - 4)

--

This can also be written as y2 - y1 = m(x2 - x1).

Your M is your slope. 

Both A and D have their m as a negative 4. Because you are looking for a positive slope, immediately cancel those answers.

* note that you could have also put them in a more standard form and discovered m which is the x in bx. 

Now, you are looking for an equation that contains (4,-8).

Because it is written as y2-y1, your y's are actually points if you were to find another slope or something. This part is a bit hard to explain, but -8 is only found in the y coordinate place in answer B. Your answer would be B. For more explanation on that, there's this great site called coolmath.com and if you search for finding the equation of two points, it explains it much better on there, but I would not want to plagiarize. 

The answer is B.


5 0
3 years ago
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