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saul85 [17]
2 years ago
6

The teachers at a middles school voted for one of two locations for the school party. There were 30 votes for the skating rink a

nd 13 votes for the bowling alley. What is the ratio of the number of votes for skating to the number of votes for bowling
Mathematics
1 answer:
erma4kov [3.2K]2 years ago
7 0

Answer:

13: 30

Step-by-step explanation:

All you have to do is make sure that you put the ice skating fist because that is the one that the question mentioned first. Hope this helps :)

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PLEASE HELP ME
kvasek [131]

Answer:

28

Step-by-step explanation:

The binomial coefficient is calculated as:

nCx=\frac{n!}{x!(n-x)!}

It means that there are nCx ways to select x elements from a group of n elements.

So, If the researcher wants to determine the probability that 6 out of the next 8 individuals in his community are in favor of the president, we can replace n by 8 and x by 6 and calculated the binomial coefficient as:

8C6=\frac{8!}{6!(8-6)!}=28

5 0
2 years ago
Find the complex fourth roots \[-\sqrt{3}+\iota \] in polar form.
____ [38]

Let z=-\sqrt3+i. Then

|z|=\sqrt{(-\sqrt3)^2+1^2}=2

z lies in the second quadrant, so

\arg z=\pi+\tan^{-1}\left(-\dfrac1{\sqrt3}\right)=\dfrac{5\pi}6

So we have

z=2e^{i5\pi/6}

and the fourth roots of z are

2^{1/4}e^{i(5\pi/6+k\pi)/4}

where k\in\{0,1,2,3\}. In particular, they are

2^{1/4}e^{i(5\pi/6)/4}=2^{1/4}e^{i5\pi/24}

2^{1/4}e^{i(5\pi/6+2\pi)/4}=2^{1/4}e^{i17\pi/24}

2^{1/4}e^{i(5\pi/6+4\pi)/4}=2^{1/4}e^{i29\pi/24}

2^{1/4}e^{i(5\pi/6+6\pi)/4}=2^{1/4}e^{i41\pi/24}

7 0
3 years ago
What is the perimeter of triangle PQR.
shutvik [7]

Answer:

Opps i am really sorry i donot know it

7 0
2 years ago
What is the answer to 2(x+4)-3
Veseljchak [2.6K]

Answer:

Step-by-step explanation:

7 0
3 years ago
The points L, M, N and O all lie on the same line segment, in that order, such that the ratio of LM : MN : NO is equal to 3 : 1
jasenka [17]

Answer:

NO = 20

Step-by-step explanation:

If the pieces are in the ratio of 3:1:5 and the whole thing is 36, then set up an equation:

3x + 1x + 5x = 36

and solve, see image.

5 0
2 years ago
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