Which of the following infinite series has a finite sum? explain your reasoning.
a. 1.5+3+6+12+
b. 2+8+32+128+
c. 4+4.2+4.4+4.6+
d. 20+10+5+2.5+

d. 20+10+5+2.5+...

Step-by-step explanation:

No geometric series with a common ratio of magnitude greater than 1 will have a finite sum. Nor will any arithmetic series.

Those descriptions exclude answer choices a, b, c. Choice d is a geometric series with a common ratio of 1/2, so will have a finite sum. (It is 40.)

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

0lz try yourself sorry for not answering