F\left(x\right)=-5\left(x-10\right) ^2-8 whats is the vertex

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

i think is g(1)=-1.

hope that i can

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract