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3 years ago

What is 9/12a = 1 ? Also what is 6/5b = 1 ? And Finaly what is 12c = 1 ?

Mathematics

1 answer:

ivolga24 [154]3 years ago

4 0

Step-by-step explanation:

hope I understand your question

a = 9/12

b = 6/5

c = 1/12

please simplify the fractions by yourself

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Write an inequality for the following statement : "you have to be at least 18 years old to vote. "

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3 years ago

What is the difference of the two polynomials? (9x2 + 8x) – (2x2 + 3x) 7x2 + 5x 7x2 + 11x 11x2 + 5x 11x2 + 11x

Anuta_ua [19.1K]

we have

$(9x^{2}+8x)-(2x^{2}+3x)$

Step 1

Eliminate the parenthesis

$(9x^{2}+8x)-(2x^{2}+3x)=9x^{2}+8x-2x^{2}-3x$

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Step 3

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4 years ago

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N76 [4]

Answer:

$(a) x^2-2x=x \times (x+2) \\\\(b) 6x^2+12x=2\times 3 \times x \times ( x + 2) \\\\(c) 3x^3 - 9x=3\times x \times (x^2 -3) \\\\(d) 4x^2 +28 x^3 = 2 \times 2 \times x \times x \times ( 1+ 7x)$

Step-by-step explanation:

To factorize, at first, do factorize all the terms then take the common terms out.

(a) $x^2-2x$

This can be written as

$x^2-2x= x\times x + 2 \times x$

Now, taking x commom from both the terms.

$x^2-2x=x \times (x+2)$

(b) $6x^2+12x$

$=2\times 3 \times x\times x + 2\times 2 \times 3 \times x$

Now, taking $2\times 3\times x$ common from both the terms, we have

$6x^2+12x=2\times 3 \times x \times ( x + 2)$

This is the required factorization.

$= 3 \times x \times x \times - 9\times x \\\\ 3x^3 - 9x=3\times x \times (x^2 -3)$

This is the required factorization.

(d) $4x^2 +28 x^3$

$= 2 \times 2 \times x \times x + 2 \times 2 \times 7 \times x \times x \times x \\\\4x^2 +28 x^3 = 2 \times 2 \times x \times x \times ( 1+ 7x)$

This is the required factorization.

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3 years ago

The formula for the circumference of a circle is C = 2r. What is one-fourth of the circumference of a circle that measures 12 ce

Harman [31]

The formula of a circumference is:

$C=2\pi r$

r - radius

$C=d\pi$

d - diameter

We have d = 12cm. Substitute:

$C=12\pi\ cm$

One-fourth of the circumference:

$\dfrac{1}{4}C=\dfrac{1}{4}\cdot12\pi=3\pi\ cm\approx3\cdot3.14=9.42\ cm$

<h3>Answer: 9.42 cm.</h3>

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