Answer:
25.85
Step-by-step explanation:
Answer:
For x = height:
x(x + 20) = 576.
Step-by-step explanation:
The area is 576 cm^
Area = width * height
Let the height be x, then the width is (x + 20) cm
So the expression for the area can be written
x(x + 20) = 576.
By plugging in 3 into t, we find that h(3)= -2(3)+3. -2(3) equals -6, and -6+3 equals -3, so h(3)=-3.