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2 years ago

PLEASE HELP ME!!!!!Invasive species spread to new environments by all of the following ways except through

Mathematics

1 answer:

goldenfox [79]2 years ago

4 0

It is d because corona virus

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The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

$\bar X= 0.872$ the sample mean

And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

6 0

3 years ago

Trapezoid W′X′Y′Z′ is the image of trapezoid WXYZ under a dilation through point C.

IRINA_888 [86]

Formula for scale factor
=image devide object
the answer is c

4 0

2 years ago

Read 2 more answers

There are a total of 62 students in the robotics club and the science club. The science club has 8 fewer students than the robot

Lesechka [4]

To find this answer you simply subtract eight from sixty-two, which gives you....
54!

So there are 54 student in the science club!

Hope this helps! :)

6 0

3 years ago

How do you show less than or equal too on a number line?

NISA [10]

It is like if you have two number lines. Then one has a pointer at 0, and the other one has the pointer facing at 2 then it will be lesser because the first one has 0 or if it turned around it would be greater. If it is equal then it would have the same number, but watch out if it is a negative number.

8 0

3 years ago

Is this expression equivalent?<br> 3v+v and 12v over 3

xeze [42]

Yes this is equal because 3v+v is 4v and if you divide 12v by 3 you also get 4v

7 0

3 years ago

Read 2 more answers