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Klio2033 [76]
2 years ago
13

Factorise 2x^2 + 7x + 3

Mathematics
2 answers:
Anarel [89]2 years ago
5 0

Answer:

by factorising it we get , (2x + 1) • (x + 3)

Step-by-step explanation:

for solution see the attached picture. ...

lora16 [44]2 years ago
3 0
Answer:
=2x^2 +7x+3
Make pairs:
= 2x^2+6x+x+3
= 2x(x+3)+1(x+3)
=(x+3)(2x+1)
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find the value of the polygon. the polygon has 6 interior angles 2 of them are y and 4 of them are (2Y-20)
Anna35 [415]
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S = 180(n-2)

where S is the sum of the angles (result of adding them all up) and n is the number of sides. In this case, n = 6. So let's plug that in to get

S = 180(n-2)
S = 180(6-2)
S = 180(4)
S = 720

The six angles, whatever they are individually, add to 720 degrees. The six angles are y, y, 2y-20, 2y-20,  2y-20,  2y-20, <span> 

They add up and must be equal to 720, so let's set up the equation to get...

(y)+(y)+(</span>2y-20)+(2y-20)+(2y-20)+(<span>2y-20) = 720

Let's solve for y

</span>y+y+2y-20+2y-20+2y-20+2y-20 = 720

10y-80 = 720

10y-80+80 = 720+80

<span>10y = 800
</span>
10y/10 = 800/10

y = 80

Now that we know the value of y, we can figure out the six angles

angle1 = y = 80 degrees
<span>angle2 = y = 80 degrees
</span><span>angle3 = 2y-20 = 2*80-20 = 140 degrees
</span>angle4 = 2y-20 = 2*80-20 =<span> 140 degrees
</span><span>angle5 = 2y-20 = 2*80-20 = 140 degrees
</span>angle6 = 2y-20 = 2*80-20 =<span> 140 degrees
</span>
and that's all there is to it
3 0
3 years ago
Rename the number 120,000
jeka94

Answer:

One Hundred Twenty Thousand

Step-by-step explanation:

I hope this is waht your looking for. But you were a bit unclear.

4 0
3 years ago
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