the circumference of a circle is c centimeters the diameter of the circle is 13 centimeters what expression best represents the value of pie

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

What is the measure of angle 1? a.28 b.152 c.168 d.64

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas