Twenty students in class A an 20 students in class B were asked how many hours they took prepare for a exam
1 answer:
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Answer:
The dimensions are:
by
Step-by-step explanation:
The area of the rectangle is given as
The factored form of this quadratic trinomial gives the dimensions of the rectangle.
We factor 3 first to obtain;
We split the middle term to get;
We factor within the parenthesis to get;
We factor further to get;
The dimensions are:
by
Then the perimeter will be
