The axis of symmetry for a function in the form f(x)=x2+4x-5 is x=-2

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Find the area of the triangle shown 3 by 6