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erik [133]
3 years ago
15

100 POINTS!!!!!!!!! ANSWER NOWEvaluate each exponent.

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
5 0

Answer: -3^4=-81\\(-3)^4=81\\3^{-4} =\frac{1}{81} \\-3^{-4} =-\frac{1}{81}


Step-by-step explanation: In some cases you must apply the exponent rule, simplify, or multiply them together to get your answer.


AURORKA [14]3 years ago
5 0

81 = (-3)^4

-81 = -3^4

1/81 = 3^-4  because 3^-4 = 1 / 3^4 = 1 / 81

- 1/81 = -3^-4 because  -3^-4 = -1 /(3^4) = - 1 / 81

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Travis wants to solve a quadratic equation. Since his equation cannot be factored, Travis has to graph the equation and approxim
SOVA2 [1]

Answer:

The correct answer is B.

Step-by-step explanation:

In order to find this, calculate out the discriminant for each of the following equations. If the discriminant is a perfect square, then it can be factored.

Discriminant = b^2 - 4ac

The only of the equations that does not yield a perfect square is B. The work for it is done below for you.

Discriminant = b^2 - 4ac

Discriminant = 7^2 - 4(2)(-5)

Discriminant = 49 + 40

Discriminant = 89

Since 89 is not a perfect square, we cannot factor this.

6 0
2 years ago
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The total number of books in the library is 1155.there are 20 times more nonfiction books than fiction books. How many fiction b
alekssr [168]
There is 20x more nonfiction than fiction so you do
20+1=21
so then to find out what \frac{1}{21} of 1155 is we do
1155÷21=55
so then we times 55 by 20 because there are 20x more nonfiction than fiction
55x20=1100
soo now we know there is
1100 nonfiction books and
55 fiction books
to check whether we are right we can do
1100=55=1155
we are right because there is 1155 books in the library
hope i helped
3 0
3 years ago
Number 11 I need help with pretty hard help help help
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Solve the radical equation. Be sure to check all solutions to eliminate extraneous solutions.
Liono4ka [1.6K]

The solution of the radical equation is x = 5 / 3.

<h3>How to solve radical equation?</h3>

The radical equation can be solved by isolating x.

Therefore, the radical equation can be solved as follows:

√3x - 1   - 2 = 0

add 2 to both sides

√3x - 1   - 2 = 0

√3x - 1   - 2 + 2 = 0 + 2

√3x - 1 = 2

square both sides

√3x - 1 = 2

(√3x - 1 )² = 2²

Hence,

(√3x - 1 )² = 2²

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Therefore, add 1 to both sides

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3x - 1 + 1 = 4 + 1

3x = 5

divide both sides by 3

3x  = 5

3x / 3 = 5 / 3

x = 5 / 3

Therefore, the solution of the radical equation is x = 5 / 3.

learn more on radical equation here: brainly.com/question/28442352

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Answer:

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3 years ago
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