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3 years ago

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

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

3 0

The answer is

-2,4
basically all of the valid x values

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Drag each expression to show whether the product is less than 1

barxatty [35]

Equal to 1:

$3*\frac{1}{3}\ \ , \ \ 5*\frac{1}{5}\ \ , \ \6*\frac{1}{6}$

Less than 1:

$1*\frac{5}{6}$

Greater than 1:

$2 * \frac{3}{4} \ \ , \ \ \ 3 * \frac{2}{5}$

Step-by-step explanation:

We will solve each product one by one.

So,

$3*\frac{1}{3} = 1\\\\6*\frac{1}{6} = 1\\\\2 * \frac{3}{4} = \frac{3}{2}\\\\1*\frac{5}{6} = \frac{5}{6}\\\\3*\frac{2}{5} = \frac{6}{5}\\\\5*\frac{1}{5} = \frac{1}{5}$

As we have all the answers now.

If the denominator of a fraction is greater than ts numerator then the result is less than 1
If the denominator of a fraction is less than its numerator then the result is greater than 1.

So,

Equal to 1:

$3*\frac{1}{3}\ \ , \ \ 5*\frac{1}{5}\ \ , \ \6*\frac{1}{6}$

Less than 1:

$1*\frac{5}{6}$

Greater than 1:

$2 * \frac{3}{4} \ \ , \ \ \ 3 * \frac{2}{5}$

Keywords: Fractions, decimals

Learn more about fractions at:

#LearnwithBrainly

3 0

3 years ago

Thirty minutes of exercise per day can reduce your blood pressure. Which of the following is a guideline for establishing causal

Lynna [10]

Answer:

opt. (d)

Step-by-step explanation:

6 0

3 years ago

A man stands on a balcony 140 feet up and sees a bus stop at a 75 degree angle How far is the bus stop to the man in nearest fee

lakkis [162]

D = 140 sec Θ models the distance from the man
<span>to any object given his angle of sight theta.
</span>after working it out you will find out that the awnser is <span>541 feet</span>

4 0

4 years ago

Read 2 more answers

4ab over c divided by 3a over 2c

BARSIC [14]

=4ab/c x 2c/3a
= 8b / 3

hope it helps

3 0

3 years ago

Read 2 more answers

Tonya prepared 4 different letters to be sent to 4 different addresses. for each letter, she prepared an envelop with its correc

nikitadnepr [17]

There are 4! = 24 poosible permutations of the four letters. Let the letters be A, B, C and D. Two permutations will have only letter A in the correct envelope, two more permutations will have only letter B in the correct envelope, two more will have only letter C in the correct envelope and two more will have only letter D in the correct envelope. Therefore 8 out of the 24 possible permutations will have only one letter with the correct address. The required probability is 8/24 = 1/3.

3 0

3 years ago