veheca
17.03.2020 •
Mathematics
What is the circumference of this circle, in centimeters? Use 7 for x.
d = 21 cm
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Ответ:
66
Step-by-step explanation:
2R=21
The formula for circumference is 2Rpi so it is:
21*22/7=66
Ответ:
8. a. 7
b. 7(2x+4y+3)
9. 3(5a-2b+12)
-3(-5a+2b-12)