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WARRIOR [948]
3 years ago
14

Ms. Santor divides 32 students into 8 equal groups for a field trip.Draw a tape diagram,and label the number of students in each

group as n.Write an equation,and solve for n.
Mathematics
2 answers:
Nataly [62]3 years ago
3 0
It’s 6 and idk what a tape diagram is so just do that
Goryan [66]3 years ago
3 0

Answer:

8n =32 the answer is 4 , number of students in each group i cant draw a tape diagram sorry

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⎪6 − 4⎪ − ⎪3 − 8⎪ = ?<br> Please help!!!!
andriy [413]

Answer:

-3

Step-by-step explanation:

Numbers that come out of the absolute values are always positive.

|6 - 4| -|3 - 8| =

| 2| - | -5| =

2 - 5 =

-3

3 0
2 years ago
Please help! I don't understand how to solve this problem
Ilia_Sergeevich [38]

Using the z-distribution, a sample of 142,282 should be taken, which is not practical as it is too large of a sample.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

The margin of error is:

M = z\frac{\sigma}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

Assuming an uniform distribution, the standard deviation is given by:

S = \sqrt{\frac{(4 - 0)^2}{12}} = 1.1547

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The sample size is found solving for n when the margin of error is of M = 0.006, hence:

M = z\frac{\sigma}{\sqrt{n}}

0.006 = 1.96\frac{1.1547}{\sqrt{n}}

0.006\sqrt{n} = 1.96 \times 1.1547

\sqrt{n} = \frac{1.96 \times 1.1547}{0.006}

(\sqrt{n})^2 = \left(\frac{1.96 \times 1.1547}{0.006}\right)^2

n =  142,282.

A sample of 142,282 should be taken, which is not practical as it is too large of a sample.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

8 0
1 year ago
If CB 1 AB and mA = 60, what is the measure of C?
Yanka [14]

Answer:

The answer should be D. 120 degrees

5 0
3 years ago
Jose sells beaded necklaces. Each large necklace sells for $4.70 and each small necklace sells for $3.80 How much will he earn f
Zolol [24]
He will have $13.5
Explanation:
I know I’m right, I hope you have a amazing day
7 0
2 years ago
Complete the sentences below the radius of a circle is _____ the length of its diameter. the diameter of a circle is ______ the
son4ous [18]

Answer:

Half;  twice

Step-by-step explanation:

In a circle, the radius is said to be the distance from the center of the circle to any point on the edge of the circle, it is denoted as "r". The radius is called a radii if it is more than one.. The radius of a circle is half the length of the diameter of a circle because the diameter of a circle is the distance of the line that passes through the center of a circle touching both edges of the circle. It is denoted as "d".

Thus,

2r = d

r = d/2

For example, if the radius of a circle is 10cm, the diameter of the circle will be calculated as: d = 2 * 10 = 20cm. Which means if the radius is 10cm, diameter will be 20cm.

Therefore, the radius of a circle is half the length of its diameter. the diameter of a circle is twice the length of its radius

5 0
3 years ago
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