Write the sum using sigma notation 3^2+4^2+5^2+...+10^2

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Which of the binomials below is a factor of this trinominal? x^2-13+30