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dimulka [17.4K]
3 years ago
5

Dont do QA plzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics
1 answer:
N76 [4]3 years ago
7 0

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.

(c) 3x^3 - 9x \\\\

= 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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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7B20%7D%3D" id="TexFormula1" title="\frac{12}{20}=" alt="\frac{12}{20}=" align
Alecsey [184]

The equivalent numbers of 12/20 are 60% and 0.60

<h3>How to convert the fraction?</h3>

The fraction expression is given as:

12/20

Multiply the fraction expression by 100%

So, the expression becomes

12/20 * 100%

Evaluate the product

60%

Express as fraction, again

60/100

Evaluate the quotient

0.60

Hence, the equivalent numbers of 12/20 are 60% and 0.60

Read more about fractions at:

brainly.com/question/11562149

#SPJ1

5 0
1 year ago
Sas<br> Asa<br> These triangles cannot be proven congruent<br> Help please
AlekseyPX
AAS rule can prove these triangles are congruent cuz u see two angles are marked as equal to each other but the side that’s overlapped on each other(the line the triangles are sharing) shows that the side is equal length to each other.
3 0
3 years ago
6. Find the area of a triangle with sides a = 5, b = 8, and c = 11.​
Colt1911 [192]
<h2>20</h2>

Hi, I’m Lena and I’ll be here to answer your question with a good-quality answer. If there's something I can improve, let me know! ツ

♡ Let’s look at the main important things that will lead you in the correct path.

♥ <em>a </em>+<em> b</em> usually = <em>c!</em> Unless the book asks you to find a specific variable, you will most likely be looking for <em>c</em>.

♥ <em>A</em> = <em>bh</em>/2! This is the formula for the area of a triangle. You can also read this as A = base * height/2. The good thing about this formula is you don't need a picture. You can write it as <em>a</em> * b<em> </em>or <em>b</em> * <em>a!</em>

<em />

♡ Now, let's solve!

♥ Plug the numbers into the formula: 5*8/2.

♥ Solve! In this case, we do not need c: 40/2 = 20.

Your answer should be 20! Please do not hesitate to ask me any questions.

3 0
3 years ago
A jet flew from new York to London in 7 hours the aravege speed was499.4miles an hour how many miles was the trip.
cestrela7 [59]
3495.8 miles beacuse distance = speed x time
8 0
3 years ago
The length of the base of an isosceles triangle is x. The length of a leg is 4x-4. The perimeter of the triangle is 73 . Find x.
lukranit [14]

Answer:

-9.125

Step-by-step explanation:

4x-4=-8

- 8 divied by 73 = - 9.125

Answer 9.125

3 0
2 years ago
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