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Maths Puzzle
Numerical Ability
a 12-inch diameter pizza is cut into 8 equal pieces. what is the area of each piece?
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book Other Question
the conjugate of
sqare_root(2)-square_root(3) is:
square_root(2)+square_root(3).
But can it be:
-sqare_root(2)-square_root(3)?
i have a picture of a triangle and the lenght is (3n+1) and the width is (2n-5)
and it says "write the area as a trinomial."
i got
6n^2+13n-5
but it said i was wrong so how do i do these problems?