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fomenos
3 years ago
5

Mr. Bridge teaches four regular classes and a seminar. The numbers of students in his classes are: 32,29,33,8,31 What is the mos

t appropriate measure of the center?

Mathematics
1 answer:
ElenaW [278]3 years ago
4 0

Answer:

32:  median

Step-by-step explanation:

Use the median.  Here the median is the middle value of the data string

8, 29, 32, 31, 33, that is, 32.  

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A box of books has a mass of 4.10 kilogram for ever meter of its height a box of magazines has a mass of 3 pounds for every foot
Tju [1.3M]

No rounding is necessary to answer the question.

We can subtract the (linear) density of the second box from that of the first to see which box is heavier per unit height.

\dfrac{4.10\,kg}{1\,m}-\dfrac{3\,lb}{1\,ft}=\dfrac{4.10\,kg}{1\,m}\cdot\dfrac{1\,lb}{0.45\,kg}-\dfrac{3\,lb}{1\,ft}\cdot\dfrac{3.28\,ft}{1\,m}\\\\=\dfrac{4.10\,lb}{0.45\,m}-\dfrac{3\cdot 3.28\,lb}{1\,m}=\dfrac{4.10-3\cdot 3.28\cdot 0.45}{0.45}\dfrac{lb}{m}=\dfrac{4.10-4.428}{0.45}\dfrac{lb}{m}

This value is obviously less than zero, so ...

... the box of magazines has the greater mass per unit height.

_____

The question didn't ask for the mass per height, and we didn't compute it. All we did was make a conversion to comparable units. The units we ended up with are mixed English and metric units, but that doesn't matter for the purpose of comparison.

Since all we're really interested in is <em>the sign of the difference</em> of mass/height, we don't even need to actually compute that difference. We just need to do enough computation to be able to tell whether the sign is positive or negative.

3 0
4 years ago
A cab company charges $2 per cab ride, plus an additional $0.90 per mile driven. Write an equation that shows the relationship b
Reil [10]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>$2 + $0.90x = </em>

▹ Step-by-Step Explanation

$2 represents the starting cost and, $0.90x represents the amount paid for each mile driven.

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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8 0
3 years ago
What is the image of point (8,-4) under the rotation R90° about the origin?
mr Goodwill [35]

Answer:

D). (-4,-8)​

Step-by-step explanation:

An image at (8,-4) if rotated at an angle of 90° wipl have another location.

First of all, an image at (8,-4) is in the fourth quadrant, and if it's to rotate clockwise at 90° iths supposed to be in the third quadrant.

And in the third quadrant both x and y is negative.

So the new position is at (-4,-8)​

7 0
4 years ago
Can you help with #15 please on fractions
Verdich [7]
The answer is C because a fraction is part of the whole, therefore making. The answer less than the whole number
7 0
3 years ago
Read 2 more answers
Evaluate the expression when n=-2.<br> n²-8n+7
Afina-wow [57]

Answer:

27

Step-by-step explanation:

Substitute n = - 2 into the expression

n² - 8n + 7

= (- 2)² - 8(- 2) + 7 = 4 + 16 + 7 = 27

6 0
3 years ago
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