3 years ago

I need a lot of help please!

1 answer:

6 0

<span>when point Q (2, -1) is rotated about the origin O through 90° in clockwise direction, the new position of point Q (2, -1) will become Q’ (-1, -2).
</span>
answer
Q' (-1, -2)

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Do you mean $2[(12+2x)+(15+2x)]=74$ ? In that case just finish things inside the bracket first then multiply 2 inside.

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