What is x to the power of 3 - 2x simplified
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13: Since f(1)=10, the sequence must start with 10. We have only one sequence starting with 10, and indeed it verifies f(n+1)=f(n)-2, i.e. the next term is 2 less than the previous one.
14: If y varies directly with x, then there is a constant of variation k such that
In your case, F varies directly with m, with a constant of variation of 32.2, so we have
A dilation by a scale factor of 6 will cause the radius to increase by a factor of 6. So 
. If we plug this value of r into the formula for the circumference of a circle we get 
So basically N = 12r. You haven't given me any original radius, so I can't give you a constant for N, but if you do have that original radius you can just plug that into 12r.
Based on your comment, N = 12 * 9 = 108 inches
So basically N = 12r. You haven't given me any original radius, so I can't give you a constant for N, but if you do have that original radius you can just plug that into 12r.
Based on your comment, N = 12 * 9 = 108 inches