Evaluating each geometric series described. Find the sum A1=-3, An=-196608, r=4 Answer choices: A) 1 B)-285886 C)-262143 D)-339855 S=

(C)-262143

Step-by-step explanation:

For a geometric series, the nth term

where a= first term, r=common ratio.

If , r=4 and

then from

-196608=-3 X

Since the bases are the same, the powers are equal

n-1=8

n=8+1=9

Therefore the Sum of the geometric series

(This form is used because r>1)

answer: yes, since the line has a steeper rate of change than the exponential the y-values will be greater and they will only intersect one time.

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15