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2 years ago

Two friends share 7 cookies equally. How many cookies does each friend get?

Mathematics

1 answer:

RoseWind [281]2 years ago

4 0

Answer:

Each friend will get 3.5 or 3 1/2 cookies

when you divide 7 by 2 you will get a decimal or a fraction depending on what your teacher is looking for

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24 + (-9) - 44 + 33 - 17<br> word problem form

pashok25 [27]

Twenty four plus (negative nine) minus forty-four plus thirty three minus seventeen.

7 0

2 years ago

Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________

Tresset [83]

Using the normal distribution, it is found that the correct option is:

D. 1; 100

In a <em>normal distribution</em> with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

In this problem:

The mean on the Wechsler Scale is of 100, hence $\mu = 100$ .

The standard deviation is of 17, hence $\sigma = 17$ .

Brianna had an score of 117, hence $X = 117$

Then:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{117 - 100}{17}$

$Z = 1$

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0

2 years ago

Someone plz help I already know the answer put how can I put the diagram can you guys help me can u put the picture how u did it

Oliga [24]

Answer:

therws this random chart from the internet, I think that's what they want, but not sure

8 0

2 years ago

The circumference of a circle is 11 pi ft. find its diameter, in feet

nexus9112 [7]

Answer:

11 feet

Step-by-step explanation:

Use the circumference formula, C = $\pi$ d

Plug in 11 $\pi$ as C, and solve for d:

C = $\pi$ d

11 $\pi$ = $\pi$ d

11 = d

So, the diameter is 11 feet

7 0

3 years ago

Determine whether 81 − 49n4 is a difference of two squares. If so, factor it. If not, explain why.

Mumz [18]

We have

$81-49n^4=9^2-(7n^2)^2$

so this is indeed a difference of squares. Factorizing would give

$81-49n^4=(9-7n^2)(9+7n^2)$

making the answer D.

We can further factor the first term here and write

$9-7n^2=3^2-(\sqrt 7\,n)^2=(3-\sqrt7\,n)(3+\sqrt7\,n)$

but that's clearly out of the scope of this question.

7 0

2 years ago