51. Quie: Geometrie Sequences
Question 2 of 10
2 Points
What is the value of the fourth term in a geometrie sequence for which a
30 and r= 1/2
Answer here

Step-by-step explanation:

hello :

the general term is : An =A1×r^n    when A1 =30   r=1/2

the fourth term is :A4 when  n = 4

A4= 30×(1/2)^4 = 30/16 = 15/4

y = (9/4)x - 9

Step-by-step explanation:

The x-intercept is (4, 0) and the y-intercept is (0, -9).

As we move from (0, -9) to (4, 0), x (the 'run' increases by 4 and y (the 'rise' increases by 9.  Thus, the slope of the line connecting these two points is m = rise/run = 9/4, from which we can write the desired equation in the form y = mx + b:

y = (9/4)x - 9