Find a formula for the general term an (not the partial sum) of each infinite series (with starting point of n = 1.) (a) 5 4 + 5 16 + 5 64 + 5 256 + an = 5 4n (b) 1 1 + 5 2 + 25 4 + 125 8 + an = ( 5 2)n−1 (c) 1 + 7 1 − 2 + 7 2 · 1 + 3 + 7 3 · 2 · 1 − 4 + 7 4 · 3 · 2 · 1 + an = (−1)n−1 n+7 n! (d) 8 12 + 1 + 3 22 + 1 + 8 32 + 1 + 3 42 + 1 + an = 15−(1)n−1 2(n2+1)

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

18.8cm hope i at all

step-by-step explanation:

answer: im sorry i dont get it

step-by-step explanation:

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.