R is inversely proportional to A R = 12.1 when A =1.5 a) work out a formula connecting R and A

The formula is connecting R and A

The value of 'K' = 18.15

Step-by-step explanation:

Step(i):-

Given that R is inversely proportional to A

      R ∝ 1 / A

Given  R = 12 .1 and A = 1.5

      K = 12.1 × 1.5

     K = 18.15

The value of 'K' = 18.15

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

step-by-step explanation: