Circumference is equal to diameter multiplied by pi. C=d X pi. To find the radius we need to rearrange this equation. We know what pi and the circumference are, so to find diameter we do circumference divided by pi. D=c/pi. 942/pi = 299.85. This gives us the diameter, for the radius simply divide by 2 which is 149.92 :)
Any number from -10 to -∞ would be correct. One example is -79.
Y = 5x
x = 5
y = 5(5)
y = 25
X= 48x^2
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