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ozzi
2 years ago
7

Can anyone help with this please? Janell randomly surveyed 50 students. She found out that 42 of the students had been to a musi

c concert. There are 2,870 students at the school. Based on her survey, about how many students in school have been to a music concert?
Mathematics
1 answer:
sweet [91]2 years ago
8 0

Answer:

2411

Step-by-step explanation:

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At the end of the first day three of the cricketers scored these runs 28, 61 and 39
prohojiy [21]

Answer:

His friend took one from 61 and added it to 39. That made it easy to mentally add 40 and 60 to get 100. Then he mentally added 28 to 100 to get 128.

3 0
3 years ago
Find the probability of at least three successes in six trials of a binomial experiment in which the probability of success is 5
Amanda [17]

Answer:

31.3%

Step-by-step explanation:

Start by doing the binomial expansion of (x+y)^6 where x represents success. This is  

(x^6y^0) + 6(x^5y^1) +15(x^4y^2) +20(x^3y^3) +15(x^2y^4) +6(x^1y^5) +(x^0y^6)  

We are interested in the x^3y^3 term which represents exactly 3 successes. Since the probability of success and failure are both .5 we should be able to figure this out just using the coefficients of the terms which is  

20/64 = .3125 which is 31.25% Rounding yo the nearest tenth gives us

8 0
2 years ago
Please help me on this!! READ THE PIC!! I'M TOO STUCK!!
klasskru [66]

Answer:

This just explains what the temperature scale is.

Step-by-step explanation:

Have a look at the scale! :)

7 0
3 years ago
Work out. 2/11 + 3/5
Helen [10]
.781111111 repeating. or 43/55
3 0
3 years ago
Read 2 more answers
The temperature outside was 3°F at midnight. During the next hour the temperature fell 7°. What was the temperature at 1 A . M
Dahasolnce [82]

If the temperature was 3 degrees Fahrenheit at Midnight, and it dropped 7 degrees during the next hour, then the temperature at 1 A.M. would be -4 degrees Fahrenheit. This is true because 3 - 7 = -4.

So, the answer to this question is that the temperature was -4 degrees Fahrenheit at 1 A.M.

3 0
2 years ago
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