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3 years ago

Divide the following polynomials. Write the answer in descending powers of a.

Mathematics

2 answers:

Aleks [24]3 years ago

7 0

The answer to this question is 5a^2-6a+20+(-175a+102)over(5a^2+6a-9)

vfiekz [6]3 years ago

7 0

Answer:

ddd

Step-by-step explanation:

Divide 5a2 + 6a - 9 into 25a4 + 19a2 - a - 78.

5a^2 -6a +20

-------------------------------------------------

5a^2+6a-9 25a^4 + 0a^3 +19a^2 - 1a - 78

25a^2 + 30a^3 - 45a^2

------------------------------------------------(subtract)

-30a^3 +64a^2 -1a

-30a^3 -36a^2 +54a

-----------------------------------------------(subtract)

100a^2 -55a -78

100a^2 +120a - 180

------------------------------------------------------

- 175a +102

Quotient : 5a^2 -6a+20

Remainder : -175+102

Answer is : $5a^2 -6a+20 + \frac{-175a+102}{5a^2+6a-9}$

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Chose all the values of x that are not in the domain of this rational function. Picture attached, 15 points and I'll give Brainl

pogonyaev

Answer:

All of them.

Step-by-step explanation:

For rational functions, the domain is all real numbers <em>except</em> for the zeros of the denominator.

Therefore, to find the x-values that are not in the domain, we need to solve for the zeros of the denominator. Therefore, set the denominator to zero:

$x(x-1)(x^2-4)=0$

Zero Product Property:

$x\neq 0\text{ or }x-1\neq 0\text{ or }x^2-4\neq 0$

Solve for the x in each of the three equations. The first one is already solved. Thus:

$x-1\neq 0 \text{ or }x^2-4\neq 0\\x\neq 1\text{ or }x^2\neq 4\\x\neq 1 \text{ or }x\neq\pm 2$

Thus, the values that <em>cannot</em> be in the domain of the rational function is:

$x=-2,0,1,2$

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3 years ago

Read 2 more answers

5% commission rate of 14.98

Arisa [49]

Answer: If you mean 5% of $14.98, it is $0.75 75 cents

If you mean 14.98 represents a 5% commission on what sale amount

The sale amount was $299.60

Step-by-step explanation:

Change the percent to a decimal and multiply by the sale amount.

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If 14.98 is the 5% commission, divide 14.98/.05= 299.60

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3 years ago

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aksik [14]

Answer:

Step-by-step explanation:

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TEA [102]

The answers are...

B. (3 ^3) ^9 * (7 ^3) ^6
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nikdorinn [45]

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