3 years ago

Find the domain. f(x)=x^2-81/x^2-2x-8

1 answer:

3 0

The answer is

-2,4
basically all of the valid x values

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devlian [24]

the answer is y=11/15

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3 years ago

SVETLANKA909090 [29]

The correct answer is b

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3 years ago

vivado [14]

Step-by-step explanation:

A real number MUST be able to be represented on a number line.

All numbers can be placed on a number line including irrational numbers.

Numbers like π can be placed between 3.13 and 3.15. It is a number.

Numbers like x or ∑ isn't a "REAL" number because it has no value.

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3 years ago

Softa [21]

Answer:

Step-by-step explanation:

its 5

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3 years ago

schepotkina [342]

Given the figure of a regular pyramid

The base of the pyramid is a hexagon with a side length = 6

The lateral area is 6 times the area of one of the side triangles

So, the side triangle has a base = 6

The height will be:

$\begin{gathered} h^2=6^2+(\frac{\sqrt[]{3}}{2}\cdot6)^2=36+27=63 \\ h=\sqrt[]{63} \end{gathered}$

so, the lateral area =

$6\cdot\frac{1}{2}\cdot6\cdot\sqrt[]{63}=18\sqrt[]{63}$

3 0

1 year ago