Find a formula for the nth term in this arithmetic sequence:
a1 = -7, a2 = -1, a3 = 5, a4 = 11, ..
an = [ ? ]n +
=

What’s the domain of this function? fastttt

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective