We are given the series of <span>a1 = -5 a2 = 20 a3 = -80. In this case, we can see that this is a geometric sequence with a geometric ratio equal to 20/-5 = -80/ 20 or equal to 4. Hence, r is equal to 4, a1 is equal to -5.
The geometric sequence formula is an = a1*r^(n-1) = -5 * (-4)^ (n-1) where n is an integer. Answer is B.</span>
The answer for your question is w= 2
Answer:
It has 2 i hope it's correct :)
Answer:
8
Step-by-step explanation:
you have to work out 8 times 10 witch is 80 and then you do 54 take waya 80 divided by 2
