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Masteriza [31]
3 years ago
12

1 over 2 x plus 2 over 3 equals 3 over 4

Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0

x=20/3

mark brainliest pls

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Write a quadratic equation with the given roots. Write the equation in the form of ax^2+bx+c=0 where a b and c are integers
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You haven't provided the required roots, but I can tell you how to do this kind of exercises in general.

If the x^2 coefficient is 1, i.e. the equation is written like x^2+bx+c=0, then you can say the following about the coefficients b and c:

  • b is the opposite of the sum of the roots
  • c is the multiplication of the roots.

So, for example, if we want an equation whose roots are 4 and -2, we have:

  • 4+(-2) = 4-2 = 2 \implies b = -2
  • 4 \cdot (-2) = -8 \implies c = -8

So, the equation is x^2-2x-8=0

If your roots are rational, you can work like this: suppose you want an equation with roots 3/4 and 1/2. You have:

  • \dfrac{3}{4}+\dfrac{1}{2} = \dfrac{3}{4}+\dfrac{2}{4} = \dfrac{5}{4} \implies b = -\dfrac{5}{4}
  • \dfrac{3}{4} \cdot \dfrac{1}{2} = \dfrac{3}{8} \implies c = \dfrac{3}{8}

And so the equation is

x^2 - \dfrac{5}{4} + \dfrac{3}{8} = 0

In order to have integer coefficients, you can multiply both sides of the equation by 8:

8x^2 - 10 + 3 = 0

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Given: If a child is at least 4 feet tall, then
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Step-by-step explanation:

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A cyclist rides his bike at a rate of
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15 miles per hour right so anyways that will be split by the number of minutes per hour so first there are 60 mins in an hour so its 15 divided by 60 which is 0.25 next how many miles will the cyclist travel in 15 minutes so that would mean taking the answer from the above and multiply it by 15 since you need 15 min which is 3.75 miles in 15 min hope i helped rate brainiest so i can reach next lvl! :)
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3 years ago
What is 53.67 to one decimal place
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53.67 to one decimal place is 53.7 since you round the .6 to the .7
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3 years ago
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What is 5% of 20?<br> Please help me
zloy xaker [14]

Answer:

1

Step-by-step explanation:

5% × 20 =

(5 ÷ 100) × 20 =

(5 × 20) ÷ 100 =

100 ÷ 100 =

1

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3 years ago
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