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3 years ago

Michela says that the modes of the two data are the same so the median and mean must also be the same. what is michela’s error?

Mathematics

1 answer:

aev [14]3 years ago

7 0

Answer: median and mean are the same

Step-by-step explanation:

The error committed by Michela is by saying

The median and mean are the same.

Because in statistics, we can't use mode to predict the median and the mean.

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Which expressions are differences of squares?

Lina20 [59]

Difference of 2 perfec squares is
(a^2)-(b^2)

if the exponents are both even and the coeficient (the number in front) are perfect squares, then it is difference t 2 perfect squares

first one
8 is not perfect square

2nd one
(4e^4)^2-(9g^2)^2

third
25 is odd, so it cannot be split up into 2 nice numbers

4th
(11m^9)^2-(3n^5)^2

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3 years ago

What is 21 > 15 + 2a

raketka [301]

My bests answer I got was a<3

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3 years ago

Answer and please show the work !

Thepotemich [5.8K]

Answer:

Option A for part A and $79 for part B

Step-by-step explanation:

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3 years ago

An irrational number is one that simply can not be worked into any equation.

Fudgin [204]

Answer:

it can be use in equation

An irrational number is a number that cannot be expressed as a fraction for any integers and. . Irrational numbers have decimal expansions that neither terminate nor become periodic.

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2 years ago

Laura has a rectangular piece of wood that is 7in by 4in she wants to cover it with strips of ribbon that are 1/4 inch wide what

inn [45]

Answer: 112 inches.

Step-by-step explanation:

You know that the width of the rectangular piece of wood is 4 inches and the width of the strip ribbon is 1/4 inches.

Then, let be "n" the number of strips ribbon that Laura needs to cover the width of the rectangular piece of wood (Assuming that she will cover the wood in the form shown in the figure attached). This is:

$n=\frac{4in}{\frac{1}{4}in}\\\\n=16$

To find the lenght of ribbon that Laura needs to conver the wood, you must multiply the number of strips ribbon "n" by the lenght of the rectangular piece of wood, then you get:

$lenght=(16)(7in)\\lenght=112in$

8 0

3 years ago