21 and 22 because 21+22=43
Answer:
x=√16
Step-by-step explanation:
-3x^2=48
First, we divide by -3 on both sides of the equation.
x^2=16
Then we find the square root of both sides.
x=√16
If by lateral area you mean the total surface of the rectangle :
each side appears twice so the total area A will be
A=2(length*width+width*height+height*length)=16*8+8*4+4*16
A=224
If you meant lateral area as in the total area minus the top and bottom base:
A=2(width*height+height*length)=8*4+4*16=96
I think its... A (but not sure)
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