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aniked [119]
3 years ago
12

Use the expression below:

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0

Answer:

Part A: 8b -12c -16

Part B: 4(2b - 3c -4)

Part C: 36

Step-by-step explanation:

Part A:

5b + 3c - 20 + 3b - 15c + 4

= 8b -12c -16

Part B:

Factorising 8b -12c -16

= 4(2b - 3c -4)

Part C:

= 4[2(2)-3(-3)-4)]

= 4[4+9-4]

= 4[9]

= 36

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There wear 10000 bugs in a mountain in the train there are 15 bug how many bugs in all
mojhsa [17]
There are 10000 bugs and you add 15 bugs to it. 
10,000+15= 10,015

The total is 10,015 bugs 

There were already 10,000 bugs and 15 bugs joined them. 
Which makes it an addition statement 

5 0
3 years ago
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Lana71 [14]
I think this is it, but i’m not sure about the last one
3 0
2 years ago
30= 2w + 2h<br><br> W= 3/4 h
Alexeev081 [22]

Answer:

h=60/7

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Step-by-step explanation:

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7 0
3 years ago
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Marizza181 [45]

With some simple rearrangement, we can rewrite the numerator as

2x^3 - 3x^2 - x + 4 = 2(x^3 - x) - 3x^2 + x + 4 \\\\ ~~~~~~~~ = 2x(x^2-1) - 3(x^2 - 1) + x + 1 \\\\ ~~~~~~~~ = (2x-3)(x^2-1) + x+1

Then factorizing the difference of squares, x^2-1=(x-1)(x+1), we end up with

\dfrac{2x^3 - 3x^2 - x + 4}{x^2 - 1} = \dfrac{(2x-3)(x-1)(x+1) + x+1}{(x-1)(x+1)} \\\\ ~~~~~~~~ = \boxed{2x-3 + \dfrac1{x-1}}

3 0
2 years ago
Help. also explain :) please
Anuta_ua [19.1K]
The answer is £140

First you find 20% of 1200 (which is basically 20 times 12) which gives you £240.

You add £240 to £1200 which is £1440

Then you take £300 off £1440 since he already paid the deposit.

That leaves you with £1140

1140 divided by 10 is 114
5 0
3 years ago
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