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aniked [119]
2 years ago
13

Which set of data has a mean of 21

Mathematics
2 answers:
ElenaW [278]2 years ago
7 0

Step-by-step explanation:

<u>Step 1:  Determine a set of data that has a mean of 21</u>

Having a mean of 21 means that the average of the numbers are 21.  So we can have a set like {20, 21, 22} that would give us a mean of 21.  It really depends on the options that you are given in the problem.

geniusboy [140]2 years ago
6 0

PLEASE include a picture so we can answer!!!

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Solve |x| &lt; 13<br> A. {-13, 13}<br> B. {x| -13&lt; x &lt; 13}<br> C. {x|x &lt; -13, x&gt; 13}
Gemiola [76]

Answer:

the solution for x will be given by  {x| -13 < x < 13}

Therefore the correct option is B.

Step-by-step explanation:

i) given that |x| < 13

ii) therefore x < 13 for positive values of x

iii) for negative values of x we have -x < 13

    therefore x > -13

iv) from ii) and iii) above we can conclude that the solution for x will be given by {x| -13 < x < 13}

Therefore the correct option is B.

7 0
3 years ago
Evaluate the polynomial 6x - y for x= -3 and Y=2.<br> A.15 <br> B. -20<br> C.4<br> D.-16
ra1l [238]
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6 0
3 years ago
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cricket20 [7]

xe^y+4\ln y=x^2

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Solve for d<em>y</em>/d<em>x</em> :

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\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{2xy-ye^y}{xye^y+4}

At the point (1, 1), the derivative is

\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=1,y=1}=\boxed{\dfrac{2-e}{e+4}}

4 0
3 years ago
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Nonamiya [84]
Hello, 

x= the number
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seven decreased by three times a number is forty, then:

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4 0
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198.9 grams equals how many ounces?
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Simply the answer is 7 ounces :D

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