AYUDA Cual es el área de una esfera cuando el radio r es A(r)=4πr²

Si pueden poner procedimiento, Plis

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Which expression is equivalent to the expression shown?