Divide 5 by 89 and you get a=17.8
Answer:
3/12
Step-by-step explanation:
10-7 is 3, so its 3/12.
Square root of 3 because it equals 1.73
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>
