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2 years ago

What is the lcd of 1/12 and 2/9

Mathematics

1 answer:

Tpy6a [65]2 years ago

4 0

Answer:

Step-by-step explanation:

The least common denominator is 36. As we can see for the multiples of 12:

12 24 36 48 ...

and the multiples of 9:

9 18 27 36 45 ...

You can also do this by prime factorization:

12=2*2*3

9=3*3

therefore the lcd must be 2*2*3*3=36

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3 years ago

F(x) = 4x - 1 g(x) = x2 - 4x Find f(g(3))

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Step-by-step explanation:

hello,

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3 years ago

PLEASE HELP 30 PTS!!! Select ALL the correct answers. Which expressions are equivalent to the following?

Oksanka [162]

Answer:

D: -5(-6x^2 + x + 2)

E: 5(2x + 1)(3x − 2)

Step-by-step explanation:

The first two answer choices have incorrect constants (25 and 3 vs -10). A factor of 5 is removed from the remaining answer choices, so let's remove a factor of 5 and see what we get:

30x^2 -5x -10 = 5(6x^2 -x -2)

An additional x cannot be factored from the expression, so choice C can be eliminated.

Multiplying each of these factors by -1 will make the product correspond to answer choice D.

Factoring will make it correspond to answer choice E, best verified by finding the x-term of the product of the binomial factors:

E: 2x(-2) +1(3x) = -x, as required

F: 2x(2) -1(3x) = x, wrong sign

The equivalent expressions are those of choices D and E.

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