What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105? Hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio.

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

State if the two triangles are congruent. if they are, state how you know?

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.