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saveliy_v [14]
2 years ago
8

A triangle has three angles 1x, 11x and 8x. as described below. Find the value of x

Mathematics
1 answer:
Rom4ik [11]2 years ago
4 0

Answer:

ttgggggggryrqyyrqrurquwjtwtjatj

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Factorise the following:<br><img src="https://tex.z-dn.net/?f=%7B3x%7D%5E%7B2%7D%20%20%2B%205x%20-%2012" id="TexFormula1" title=
Fed [463]

Answer:

(x + 3)(3x - 4)

Step-by-step explanation:

Given

3x² + 5x - 12

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 3 × - 12 = - 36 and sum = + 5

The factors are + 9 and - 4

Use these factors to split the x- term

3x² + 9x - 4x - 12 ( factor first/second and third/fourth terms )

= 3x(x + 3) - 4(x + 3) ← factor out (x + 3) from each term

= (x + 3)(3x - 4)

Thus

3x² + 5x - 12 = (x + 3)(3x - 4) ← in factored form

6 0
3 years ago
1. Which expression shows 3 less than X?<br> А 3-х<br> cx - 3<br> в 3х
vova2212 [387]
X-3 is the expression that shows it
7 0
3 years ago
Read 2 more answers
What is the arithmetic sequence of a1=228 n=28 sn=2982
Art [367]

Answer:

use the formula sn= n(a1+an)/2

Step-by-step explanation:

2982=28(228+an)/2

5964=28(228+an)

5964/28=228+an

213=228+an

an=-15(last term)

to find difference use formula

an = a+(n-1)d

-15=228+(28-1)d

-243=27d

d=-243/27

d=-9

arithmetic sequence  can be found be keep on subtracting 9 from 228

hence the arithmetic sequence is

228, 219, 210, 201, 192, 183, 174........-15

3 0
3 years ago
Find the Value of ‘X’ please due in 10 minutes
BigorU [14]

Answer:

im guessing this is maybe a dilation of some sort?? so im guessing its 11

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the volume of the rectangular prims ?
tangare [24]

They are all different sizes.

8 0
3 years ago
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