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kolezko [41]
3 years ago
13

If f(-7)=7 what is the corresponding order pair solution?

Mathematics
1 answer:
choli [55]3 years ago
3 0

its absoulte value

so the answer is 7

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Step-by-step explanation:

As each exterior angle is 45o , number of angles or sides of the polygon is 360o45o=8 . Further as each exterior angle is 45o , each interior angle is 180o−45o=135o .

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Paul [167]

Solution: For finding QR we need to apply Pythagoras Theorem

What is Pythagoras Theorem ?

ans : Pythagoras Theorem is the sum of square of two sides which is equal to the third side or the hypotenuse. This formula is valid oy incase of Right-Angled Traingle because one of three angles here is 90°

According to this law let's apply it in the diagram shown here.

  • (Hypotenuse)² = (Adjacent)² + (Opposite)²

  • (PR)² = (QR)² + (PQ)²

  • (5x - 2)² = (QR)² + (3x - 1)²

  • (QR)² = (5x - 2)² - (3x - 1)²

After factorising both of them we get

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  • (QR)² = 25x² - 20x + 4 - 9x² + 6x - 1

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  • QR = √(16x² - 14x + 3)

So, QR is √(16x² - 14x + 3)

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