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MAXImum [283]
3 years ago
8

Which expression represents the number of coins Sarah has.

Mathematics
1 answer:
Lunna [17]3 years ago
7 0

This answer gone be c.16-c

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The formula for the circumference
Marina CMI [18]

Answer:

2πr or πd

Step-by-step explanation:

Where

π= pi

r= radius of the circle

d= diameter of the circle

4 0
2 years ago
What does this look like in long division
vesna_86 [32]
Hey just to let you now it came out blury
3 0
3 years ago
Which expression is quick to
Len [333]

Answer:

4⁰ is the answer

Step-by-step explanation:

because first you change the division sign to a multiplication sign because they are the same and then multiply the terms with same base by adding their exponent which looks like this 4⁵-⁷+²

then calculate the sum or difference and you get 4⁰ [hopefully this makes sense]

3 0
3 years ago
Can you please help me i really need help.
jolli1 [7]
I am pretty sure it is C
5 0
3 years ago
A researcher is interested in the lengths of brook trout, which are known to be approximately Normally distributed with mean 80
aliya0001 [1]

Answer:

P(X

And we can find this probability with the normal standard distirbution or excel and we got:

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

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

X \sim N(80,5)  

Where \mu=80 and \sigma=5

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability with the normal standard distirbution or excel and we got:

P(z

6 0
3 years ago
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