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Colt1911 [192]
3 years ago
15

After the fraction x plus 1 all over 2 minus the fraction x plus 2 all over 3 x have been combined using the least common denomi

nator of 6x, what is the numerator?
Mathematics
1 answer:
nydimaria [60]3 years ago
8 0

Let's work out the process to find the numerator:

(x+2)/2 - (x+1)/3x                   Factor using the LCD, 6x

3x(x+2)/6x - 2(x+1)/6x

(3x² + 6x - 2x - 2)/6x

= (3x² + 4x  - 2)/6x

Answer is 3x² + 4x - 2

Hopefully I did this correct, Not to good with math c':

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Butoxors [25]
For the first blank where it asks for the perimeter, the perimeter is all the outside sides of a shape added up. So, 6 + 1 + 2 + 4 + 4 + 5 = 22.

For the second blank, you just multiply the entire perimeter by 5, so, 22 times 5=110.

For the third blank, it is basically the same as the previous question. The answer is 5.

For the fourth blank, it is the same perimeter as the first blank, but instead of centimeters, it is in k. So, 22k.

Hope this helped! :)
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vagabundo [1.1K]
This is a classic example of a 45-45-90 triangle: it's a right triangle (one angle of 90) & two other sides of the same length, which means two angles of the same length (and 45 is the only number that will work). With a 45-45-90 triangle, the lengths of the legs are easy to determine:
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Now, your hypotenuse is 10.
To figure out what each leg is, divide 10/sqrt2 (because sqrt2/sqrt2 = 1, which is a leg length in the explanation above).
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3 years ago
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Step-by-step explanation:

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