3 years ago

What number would you add to complete the square? x^2+14x=0

Mathematics

1 answer:

hjlf3 years ago

7 0

You would need to go in the order of pemdas

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Write the repeating decimal 0.268268268... as the ratio of two integers:

drek231 [11]

1000 * 0.268268... = 268 .268268...
1 * 0.268268... = . 268268... subtract:-
999 * 0.268268 = 268

so the answer is 268/999

7 0

3 years ago

27 is 45% of what number?

Maslowich

Answer:

60%

Step-by-step explanation:

The first step is to divide 27 by 45 to get the answer in decimal form:

27 / 45 = 0.6000

Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage:

0.6000 * 100 = 60.00%

7 0

3 years ago

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What is the volume of a cardboard box that measures 1 inch by 5 inches by 7 inches?

Nutka1998 [239]

Answer:

35 cubic inches

Step-by-step explanation:

V= lwh

1*5*7= 35

4 0

3 years ago

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−6(x+7) pls help me.

QveST [7]

The answer is -6x - 42

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3 years ago

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GIVING BRAINIEST IF CORRECT!!<br><br> Factor x^4 - 16 completely

ioda

Answer:

$(x^2 + 4)(x + 2)(x - 2)$

Step-by-step explanation:

Hello!

We can use the difference of square method.

<h2>Difference Of Squares (DOS)</h2>

The formula for the DOS is $(a + b)(a - b) = a^2 - b^2$

It is a simple way to factor polynomials.

The criteria:

Has to begin and end with a perfect square
The operation has to be subtraction

<h3>Factor:</h3>

$x^4 - 16$

Begins with a perfect square (x² * x²) and ends with a perfect square (4 * 4)

$(x^2 + 4)(x^2 - 4)$

Warning! Watch out, there may be another DOS!

$x^2 - 4$ is another DOS

$(x^2 + 4)(x + 2)(x - 2)$

The x² + 4 is not a DOS because the operation is addition.

The final factored form is $(x^2 + 4)(x + 2)(x - 2)$

8 0

2 years ago