Answer:
A. length = 23 cm; width = 5 cm
Step-by-step explanation:
So if 4 times the width would be 
and 3 more than would be 
, the equation would be 
. If the perimeter is 56, then the new equation, 
can be formed. This simplifies to 
, then to 
, then to 
, and finally, 
. So the width is 5, and now plug it into the first equation.
, becomes 
, becomes 
.
So the dimensions are: length = 23 cm, width = 5 cm.
*And just to be sure, 
which is correct.
We have
As we can see in order to find the shaded area of the figure, we only need to calculate the area of a square.
the shaded area is 400 mm^2
Answer:
I believe its 3.4-?
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
to find the zero let f(x) = 0 , that is
- 2x + 8 = 0 ( subtract 8 from both sides )
- 2x = - 8 ( divide both sides by - 2 )
x = 4
