SMURFETTE86
25.07.2019 •
Mathematics
Which of the following expressions represents the sum of a number and twenty-one? n + 21 n + 12 21n n - 21
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Ответ:
"the sum of a number" n= that number
and twenty-one comes after that number "n"
Ответ:
An exterior angle of a triangle is equal to the sum of the two opposite interior angles. Example : Find the values of x and y in the following triangle. y + 92° = 180° (interior angle + adjacent exterior angle = 180°.)
Step-by-step explanation: