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White raven [17]
3 years ago
5

Share 56 in the ratio 5:3

Mathematics
2 answers:
Nookie1986 [14]3 years ago
7 0

Answer:

is this a question?

Step-by-step explanation:

123838382

Inessa [10]3 years ago
5 0

Answer:

Step-by-step explanation:

5 : 3 x 7 = 35:21

(8) x 7 = (56)

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At least 26 questions to get around an 82% not 25 because that equals 78%

Step-by-step explanation:

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Resuelve estas ecuaciones<br> 1. x I 6 = 14<br> X=
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3 years ago
A scientist inoculates​ mice, one at a​ time, with a disease germ until he finds 3 that have contracted the disease. If the prob
UkoKoshka [18]

Answer:

The probability that 8 mice are​ required is 0.2428.

Step-by-step explanation:

Given : A scientist inoculates​ mice, one at a​ time, with a disease germ until he finds 3 that have contracted the disease. If the probability of contracting the disease is two sevenths.

To find : What is the probability that 8 mice are​ required? The probability that that 8 mice are required is nothing ?

Solution :

Applying binomial distribution,

P(X=r)=^nC_r p^rq^{n-r}

Where, p is the probability of success p=\frac{2}{7}

q is the probability of failure q=1-p, q=1-\frac{2}{7}=\frac{5}{7}

n is total number of trials n=8

r=3

Substitute the values,

P(X=3)=^8C_3 (\frac{2}{7})^3 (\frac{5}{7})^{8-3}

P(X=3)=\frac{8!}{3!5!}\times \frac{8}{343}\times (\frac{5}{7})^{5}

P(X=3)=\frac{8\times 7\times 6}{3\times 2\times 1}\times \frac{8}{343}\times \frac{3125}{16807}

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Therefore, the probability that 8 mice are​ required is 0.2428.

5 0
3 years ago
Solve the inequality 2x-7&gt;3
Licemer1 [7]

Answer:

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Step-by-step explanation:

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2x/2 > 10/2

x > 5

I hope this was helpful, please mark as brainliest

4 0
3 years ago
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What is the remainder when (x3 − 3x2 − 13x + 78) is divided by (x + 4)?
aksik [14]
x^2 - 7x + 15
_________________
(x+4)/ x^3 - 3x^2 - 13x + 78
- x^3 + 4x^2
----------------
- 7x^2 - 13x
- - 7x^2 - 28x
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15x + 78
- 15x + 60
-------------
18

remainder = 18
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3 years ago
Read 2 more answers
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