2 years ago

Need help on this !!!!!

Mathematics

1 answer:

Arisa [49]2 years ago

4 0

Answer:

Step-by-step explanation:

Remark

In this formation, the chords cut each other so that

Equation

(3x - 1) * 3 = 12*(x -2) Remove the brackets.

Solution

9x - 3 = 12x - 24 Add 24 to both sides.

9x - 3 + 24 = 12x - 24 + 24 Combine

9x + 21 = 12x Subtract 9x from both sides

9x - 9x +21 = 12x - 9x

21 = 3x Divide by 3

21/2 = 3x/3

7 = x

Find QR

QR = 12 + x - 2

QR = 10 + 7

QR = 17

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