Closed circle is including that number on the number line. Open circle designates that it's not that number.
For example, and open circle on 2 with an arrow right/greater than, the numbers that apply are any number greater than two, but not two. So it can be something like 4 or 2.0001 or 2.01.
A closed circle on two with an arrow to the right/greater than means it CAN be 2 (but it still can be the other numbers as well).
Answer:
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i posted an answer on https-:-/-/-docterrickrollmath-.-com
Step-by-step explanation:
just remove the -'s
Answer:
Area = 31.5 squared inches
Step-by-step explanation:
I am assuming d1 and d2 diagnol lengths, so if that's true, then answer would A=(d1*d2)/2 (3.5*18)/2 = 63/2 = 31.5 squared inches
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-Mabel <3