Answer:
10
Step-by-step explanation:
The answer is 2x-8 and 1/7+7
Answer:
the answer would be 180 degrees
Hope this helps :)
Step-by-step explanation:
I think is c I'm sorry if is wrong
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>