It equals 20 because if you work it out that would be the answer
Simplify both brackets, this equals 22 + 10x - 17 + 5x
Simplify further and you get 15x + 5
A function doesn't have roots until you give it a numerical value.
Then, the roots are the values of the variable that give the function
that value.
For example, if you said that g(x) = 0,
then the roots would both be x = 4 .
But if you said that g(x)=16, then
the roots would be x=0 and x=8 .
So,
The formula for the area of a rectangle is:
A = l * w
We will consider l to be the height.
Substitute the given values.
30 = 10 * w or 10w
Divide both sides by 10.
3 = w
The length (I would call it the width, since it is shorter) of the rectangle is 3 centimeters.