What is the recursive formula of the geometric sequence? 1∕2, 3∕4, 9∕8, 27∕16, ...
Question 1 options:

A)

a1 = 1∕2; an = an – 1 ⋅ (3∕2) for n ≥ 2

B)

an = (1∕2) ⋅ (1∕2)n – 1 for n ≥ 1

C)

a1 = 1∕2; an = an – 1 ⋅ (2) for n ≥ 2

D)

an = (2) ⋅ (1∕2)n – 1 for n ≥ 1

Plot the intercepts to graph the equation

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.