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mars1129 [50]
3 years ago
14

What is the least number of degrees you could rotate a regular pentagon (5 equal side lengths) around its center so that it appe

ars to be unchanged?
Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

Answer:

Well, I'm not the smartest person, nor do I exactly know what you mean, but I have a wild guess that the least you could rotate it is 100 degrees.

Step-by-step explanation:

Considering the fact that it's sides are all equal, you could compare this to a square, which also has equal sides. Its angles are equal, too, so you could measure it's angles (100 degrees) and turn it that exact amount,

I hope this helps you, like I said, I don't exactly know what you are talking about, I am not studying that sort of thing yet.

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A bowl has 8 green grapes and 15 red grapes. Henry randomly chooses a grape, eats it, and then chooses another grape....
frosja888 [35]

Answer:

About 41.5%

Step-by-step explanation:

<em>Given:</em>

<em>A bowl has 8 green grapes and 15 red grapes. Henry randomly chooses a grape, eats it, and then chooses another grape.</em>

<em>To Find:</em>

<em>What is the probability that both grapes are red?</em>

<em>Answer choices:</em>

<em>about 39.7%</em>

<em>about 41.5%</em>

<em>about 42.5%</em>

<em>about 44.5%</em>

<em>Solution:</em>

<em>Since, there are 8 green grapes and 15 red grapes, the total number of grapes is 23 .</em>

<em>As the red grapes are 15..</em>

<em>Thus,</em>

<em>The probability of choosing a red grape the first time is 15/23.</em>

<em>Because out of the total 23 grapes only 15 were red grape.</em>

<em>The probability of choosing the red grape the second time will be 14/22. Because the number of red grapes has already decreased by one and so is the total number of grapes after first choice</em>

<em>Hence, the probability of choosing or eating two red grapes will be :</em>

<em>15/23×14/22</em>

<em>=105/253</em>

<em>=0.415</em>

<em>= 41.5%</em>

<em>Therefore, the probability that both grapes are red is about 41.5%</em>

5 0
2 years ago
Can some please help me?
PilotLPTM [1.2K]

Answer:

ofc 8374747374743i3i3i383

8 0
1 year ago
Read 2 more answers
If you horizontally stretch the linear parent function, f(x) = x, by a factor of 3, what is the equation of the new function?
vekshin1
The correct answer is C
3 0
3 years ago
Identifying solutions by evaluating is the number a solution of 2x +1&gt;-3
liq [111]

Answer:

b or c

Step-by-step explanation:

2×-1 +1= -1

-1>-3

2×0+1= 1

1>-3

For this reason the equality can be b or c

8 0
3 years ago
6 + 2/5b = 12<br><br> What does “b” equal?
Elis [28]

Answer:

B = 15

Step-by-step explanation:

<u>Combine multiplied terms into a single fraction</u>

6 + 2b/5 = 12

<u>Subtract 6 from both sides</u>

6 + 2b/5 <em>(-6)</em> = 12 <em>(-6)   </em>= 2b/5 = 6

<u>Multiply all terms by the same value to eliminate fraction denominators</u>

2b/5 <em>( x 5) </em>= 6<em> (x 5)</em>

<em />

<u>Simplify</u>

2b = 30

4 0
3 years ago
Read 2 more answers
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