Answer:
See below
Step-by-step explanation:
If an expression is not dependent on x, it simplified form must not contain x. To show that this is the case for (a) and (b) we need to simplify them and assess:
(a)

Indeed, does not depend on x!
And (b)

Again, does not depend on x.
Answer:
20
Step-by-step explanation:
you first multiply 7 and three
then add that to four
then subtract 5
Area = pi * r^2 = pi * 3^2 = 9pi
that is 28.27 to nearest 1/100.
Answer:
Quadratic function. is a function that can be written in the form f(x)=ax^2+bx+c, where a, b & c are real numbers and a is not equal to zero. Parabola. a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve. Parent Function.(:
Step-by-step explanation:
hope it helps (:
There will be 46 attendees, 72/36=2 so then 92/2= 46