issaaamiaaa15
01.10.2019 •
Mathematics
Donald has x twenty-dollar bills and 1 ten-dollar bill.
how much money does donald have?
write your answer as an expression.
dollars
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Ответ:
Step-by-step explanation:
Radius = 7 inches
Angle of sector = 4pi/15
convert to degree = 4pi/15 × 180/pi = 48°
Area of sector = angle of sector/ angle of circle × pi × r²
= 48/360 × 22/7 ×7²
= 20 ⁸/15 inches²