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Anestetic [448]
3 years ago
14

Expand and simplify 2(3x-5)+3(2x+3)

Mathematics
2 answers:
kirill [66]3 years ago
4 0
2(3x - 5) + 3(2x + 3) =
6x - 10 + 6x + 9 =
12x - 1 <===
Ad libitum [116K]3 years ago
3 0
First you do 2 x 3x which will be 6x you then look to see whether there is a plus or minus next we see that it is a minus after this you do 2 x 5 which is 10 so the first bit is 6x - 10 we then look to see whether we have a plus or a minis we look to see that it is a plus you then work out the next bracket so you do 3 x 2x to give us 6x we see that we need to add a plus then do 3 x 3 which is 9 together it is 6x - 10 + 6x + 9 so now we have to simplify it so you do 6x + 6x which is 12x then do -10 + 9 which is -1 so the answer is 12x - 1
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Triangle Review 2.0 (Math i need help please)
lara31 [8.8K]

Answer:

A= 30

Step-by-step explanation:

This requires several steps.

First, you need to find the 2 other missing angles.

One can be found easily by substracting 130 from 180

so 180-130 = 50

The other angle is the same as 8x+4

Now set up your equation

180=3x-6 + 8x+4 +50

180 = 3x + 8x -6 + 4 +50

180+6-4-50 = 11x

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132/11 = x

12 = x

Now plug in 12 for x in your angle A

A=3x-6

A=3 * 12 - 6

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2 years ago
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AVprozaik [17]
By setting up proportions and cross multiplying, the height would be 990.8. 
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3 years ago
Is the sum of a negative and positive number always negative
Semenov [28]

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7 0
2 years ago
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6 0
3 years ago
Read 2 more answers
THIS IS MY LAST ONE BROS.
Lady bird [3.3K]
Hello!
Some sample keys for the true or false three question test would be:

 Keys are: False, False, False, True, True, True, False, False, True, True, True, False, False, True, False, True, False, True. False, True, True, True, True, False. Those are all the possible combinations for the answer key. (every 3 is a group).  Hope this helps! Have a great day!
3 0
2 years ago
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