3 years ago

What is the mean of the set of numbers? 123.4, 178.92, 0.64, 12.98, and 166.66

Mathematics

1 answer:

anzhelika [568]3 years ago

8 0

Answer:

96.52

Step-by-step explanation:

You have to firstly add all the numbers. That will give you482.6. Then divide that number by the amount of numbers in the list: 482.6 / 5. That gives you 96.52.

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The width,w, of a rectangular garden is X -2 the area of the garden is X^3-2X-4 what is an expression for the length of the gard

slamgirl [31]

$A=lw \Rightarrow l=\frac{A}{w}$
A - area, l - length, w - width

$w=x-2 \\
A=x^3-2x-4 \\ \\
l=\frac{x^3-2x-4}{x-2}=\frac{x^3-2x^2+2x^2-4x+2x-4}{x-2}=\frac{x^2(x-2)+2x(x-2)+2(x-2)}{x-2}= \\
=\frac{(x^2+2x+2)(x-2)}{x-2}=x^2+2x+2$

The answer is D. x²+2x+2.

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Step-by-step explanation:

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