If the length of a rectangle is equal to triple the width. Which system of equations can be used to find the dimensions of the r
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Since 12.3 is less than 21 it will be a negative number. so just subtract 12.3 from 21 and put a negative symbol in front of the answer.
Flipping two coins gives four possibilities: HH, HT, TH, TT
So P(TT)=1/4
So we'd expect a quarter of the trials to be two tails.
trials expected to be two tails.
So P(TT)=1/4
So we'd expect a quarter of the trials to be two tails.