Find the value of the expression, when x=4
x is squared
3X-9
hurry, please

If you are asking for 3(4^2) - 9, it is 37. If it is 3x-9 = 4^2, the answer is 8 1/3

Step-by-step explanation:

Yes.

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 hope this is what you were looking for.

see attached graph