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Nastasia [14]
1 year ago
13

Hi can I have help on this question with a simple explanation as I find things difficult to understand. Thank you :)

Mathematics
2 answers:
BlackZzzverrR [31]1 year ago
3 0

Step-by-step explanation:

Line L → 2x - 3y = 6

Where a = 2 and b = -3

• So, we can use this formula to find the gradient of Line L.

m = -a/b

m = -2/-3

m = 2/3 IS THE ANSWER

pav-90 [236]1 year ago
3 0

Answer:

gradient = 2/3

Step-by-step explanation:

Here is another way....manipulate the equation to y = mx+ b form

  where m = slope ( gradient)

2x - 3y = 6          add 3 y to both sides

6 + 3y = 2x         subtract 6 from both sides

3y = 2x - 6          divide by 3

y = 2/3 x - 2        gradient = 2/3

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at a sale, dresses were sold for $10 each. if the dresses originally cost $200 each, what percentage of its original price was a
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5%

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Number 18 pls help me
Harman [31]
Lila did it correctly. The answer is 324

Following PEMDAS, we first focus on the parenthesis. So we simplify 9-3 to get 6

So we go from 
18*4^2+(9-3)^2 
to 
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The next step is applying exponents. In this case, squaring the terms, so we go from
18*4^2+6^2 
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Next is multiplying
18*16+36
turns into
288+36

Finally, add up 288 and 36 to get 288+36 = 324

That confirms that Lila is correct

----------------------

The error that Rob made is that he computed 18*4^2+9^2-3^2 but it is NOT correct. Saying (x-y)^2 = x^2-y^2 isn't a true equation for all x and y. Again you have to simplify what is in the parenthesis first, and then you can square it. Or you must use the FOIL rule to expand out (9-3)^2


7 0
3 years ago
6
dlinn [17]

Answer:72.1

103*.7=72.1

I hope this is good enough:

6 0
3 years ago
What does -2x (-3x^2y)(2y) =
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Answer:

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Step-by-step explanation:

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