3 years ago

Using long division how much is 5/8

Mathematics

1 answer:

oee [108]3 years ago

6 0

0.625 is the answer to this

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Please answer this question !! 20 POINTS AND BRAINLIEST !!

jek_recluse [69]

Answer:

The answer is c.

Step-by-step explanation:

12*12 = 144 so It would be 12

7*7= 49 therefore, it would be 7

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3 years ago

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What is the fraction of 12 feet of rope cut into 1/3 pieces?

Fiesta28 [93]

Answer:

1/4 hopefully this helps you with work

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3 years ago

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Vladimir [108]

Answer:

Step-by-step explanation:

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3 years ago

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When the sum of \, 528 \, and three times a positive number is subtracted from the square of the number, the result is \, 120. F

aleksandr82 [10.1K]

Let $x$ be the unknown number. So, three times that number means $3x$ , and the square of the number is $x^2$

We have to sum 528 and three times the number, so we have $528+3x$

Then, we have to subtract this number from $x^2$ , so we have

$x^2-(3x+528)$

The result is 120, so the equation is

$x^2 - 3x - 528 = 120 \iff x^2 - 3x - 648 = 0$

This is a quadratic equation, i.e. an equation like $ax^2+bx+c=0$ . These equation can be solved - assuming they have a solution - with the following formula

$x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

If you plug the values from your equation, you have

$x_{1,2} = \dfrac{3\pm\sqrt{9-4\cdot(-648)}}{2} = \dfrac{3\pm\sqrt{9+2592}}{2} = \dfrac{3\pm\sqrt{2601}}{2} = \dfrac{3\pm51}{2}$

So, the two solutions would be

$x = \dfrac{3+51}{2} = \dfrac{54}{2} = 27$

$x = \dfrac{3-51}{2} = \dfrac{-48}{2} = -24$

But we know that x is positive, so we only accept the solution $x = 27$

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3 years ago

Multiply out the brackets:<br>(m + 2) (m - 2)

kramer

Answer:

(m+2)(m-2)=m^2-4

Step-by-step explanation:

(m+2)(m-2)=m(m-2)+2(m-2)

=m^2-2m+2m-4

=m^2-4

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3 years ago

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