Please help
Find the measure of the exterior angle

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.