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2 years ago

How can you determine if information on website is relevant to your topic

1 answer:

8 0

You need to look at website see what your witting about a good way to if the website has a phone number call and find on on your topic and ask questions about it

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Help me find this please ASAP.........................

Likurg_2 [28]

Third one down

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5 0

2 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,

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

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

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

$P(X=3)=0.2428$

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

5 0

3 years ago

Please answer this question in two minutes

Stells [14]

Answer:

D: 57 units

hope this helps!!

8 0

3 years ago

You can show your work if u want to<br> Find 2 numbers if Their sum is −7 and their difference is 14

Pepsi [2]

The larger number is (-7+14)/2 = 3.5.

The smaller number is (-7-14)/2 = -10.5.

_____

The two equations a+b=-7, a-b=14 can be solved to get these results. It is genrally convenient to solve them by adding one to the other, or subtracting one from the other.

7 0

2 years ago

Write an equation of the graph:

Verizon [17]

Answer:

$y=\left|x+1\right|\\y =\left|x-1\right|$

You can plug it into a graphing website or calculator to double check

7 0

2 years ago