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caggh345
29.07.2019 •
Mathematics
Which equation represents a proportional situation? a. y = 9x b. y = -2x + 23 c. y = - 3x + 4 d. y = 3x - 12
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Ответ:
Ответ:
The circumference of the pipe can be derived by 2(pi) r = 2 (3.14) (2.5)= 15.7. Hence the steel ring needs to be 15.7 cm. (option A).