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laiz [17]
3 years ago
13

HELP PLEASE 15 points

Mathematics
2 answers:
andrey2020 [161]3 years ago
5 0

Answer:

The 1rst from top

Step-by-step explanation:

That is a formula to find an area.

Alex73 [517]3 years ago
3 0

Answer:

1/2x^2 (the first option)

Step-by-step explanation:

As the area of a square is 1/2.diagonal^2, the answer is 1/2x^2(the first option).

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3 years ago
Q28. In a sale, the normal price of a book is reduced by 30%. The sale price of the book is £2.80 Work out the normal price of t
lisov135 [29]

Answer:

0.90

Step-by-step explanation:

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00

8 0
3 years ago
A rectangle has a perimeter 66 cm and length 24 cm what is its width
Elenna [48]
I think the answer is 2.75. I divided 66 and 24.
Hope this helps! Let me know if I'm right but um bad at math lol...
4 0
2 years ago
Please help me! Struggling with Geometry! 45 points (proofs)
Damm [24]

Answer:

Step-by-step explanation:

It’s nothing

3 0
3 years ago
Find the first derivative for y = f(x). fox ) 3x² -5x-1 at a Pocat where a = 4​
Brums [2.3K]

Answer:

Step-by-step explanation:

f(x) = 3x² -5x - 1

f'(x) =2*3x - 5*1 +0

     = 6x - 5

f'(4) = 6*4 - 5

      = 24 - 5

      = 19

3 0
2 years ago
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