To determine an nth term of an arithmetic sequence, we use the expression an = a1 + (n-1)d where a1 is the first term in the sequence, n is the number of the term in the sequence and d is the common difference. For a geometric sequence, it is expressed an = a1r^(n-1). We calculate as follows:
1. a128 = 9 + (128-1)(-5)
a128 = -626
2. a97 = (-3)(-2)^(97-1)
a97 = -2.377x10^29
Answer:
c
Step-by-step explanation:
That will be 5000
1km = 1000m sorta like m and cm
5×1000=5000
Answer:
210 in²
Step-by-step explanation:
6*2.5+6*6*2+(8+6)*2.5+10*2.5+1/2*6*8*2+6*2.5= 210 in²
