What is the value of f ( − 3a ), if f ( x ) = 2x 2 + 4x ?

select one:
a. 9a 2 - 12a
b. 4a 2 - 9a
c. 18a 2 - a
d. 18a 2 - 12a

Describe the relationship between the angles of similar triangles and the sides of similar triangles

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

Select the two pairs of figures that are similar.