Answer:
6) -
7) +
8) +
9) +
10) +
Step-by-step explanation:
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The circumference is (2 pi) (radius) . The ratio of radius to circumference is (1)/(2 pi).
Answer:
Divide the 1st equation by 2
a + 2c = 19
Divide the 2nd equation by 3
a + c = 13.5
Subtract the 1st equation and the 2nd equation
c = 5.5
Substituting back into the 2nd equation will give:
a + 5.5 = 13.5
a = 8
Step-by-step explanation:
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Step-by-step explana
