38.48 cm. This is so because the equation to find circumference is

R squared.
Answer:
46.6
Step-by-step explanation:
You would divide 70 kg by 1.75 meters
Answer: B) 0 real roots
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The general rule is...
if D > 0, then you have two different real roots (see note below)
If D = 0, then you have exactly one real root
If D < 0, then you have no real roots (the two roots are imaginary/complex)
where D is the discriminant found by the formula
D = b^2 - 4ac
Note: If D is also a perfect square, then the two real roots are also rational. This assuming that a,b,c are rational.
Y= -3x +11 to get the answer