tremainewoodley3030
11.09.2020 •
Mathematics
Plz help what is 2x4+3x5(5x6)+2x6
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Ответ:
2x4+3x5x30+2x6=
8+15x30+12=
8+450+12=
470
Ответ:
P parentheses
E exponents
MD multiplication/division
AS addition/subtraction
Start with parentheses
2x4+3x5(5x6)+2x6
2x4+3x5(30)+2x6
The 5 next to the 30 in parentheses means the 5 and 30 have a multiplication sign between them
2x4+3x5x30+2x6
Now exponents - we don't have any, so no worries
Now multiplication and division, in order from left to right
2x4+3x5x30+2x6
8+3x5x30+2x6
8+450+2x6
8+450+12
Now addition and subtraction, in order from left to right
8+450+12
458+12
470
Ответ:
False
The totals of the rows and columns of a two-way table are called marginal distributions.