jfoster70
05.10.2019 •
Mathematics
Which expression is equivalent to 21 + 49?
7(3 + 49)
7(3 + 7)
7(14 + 42)
7(14 + 49)
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Ответ:
The answer is B, 7(3 + 7).
Explanation:
All you have to do is multiply the number outside of the parenthesis by the numbers inside the parenthesis individually, then you add the two products together. So, for this problem in particular it would be 7 x 3 = 21 and 7 x 7 = 49 that would give you would get 21 + 49, the expression your looking for!
Thus, the correct answer is B 7(3 + 7)!
Also i recently took this test.
FLVS right, segment exam part two?
Your so close to being finished , all you have to do is finish this test
I hope this helped fellow FLVS student!
Ответ:
A=hb*B/2
Step-by-step explanation:
the 8 is the base, B, and 7-c is the height, hb