Answer: Options 'C' and 'E' are correct.
Step-by-step explanation:
Since we have given that
Quantity of snowfall in February at Delphine's house be f centimeters
Quantity of snowfall in March at Delphine's house be 40% more than in February.
According to question,
So, Options 'C' and 'E' are correct.
i.e. C) 1.4f
E)
Answer:
Step-by-step explanation:
Given that a rectangle is inscribed with its base on the x-axis and its upper corners on the parabola
the parabola is open down with vertex at (0,2)
We can find that the rectangle also will be symmetrical about y axis.
Let the vertices on x axis by (p,0) and (-p,0)
Then other two vertices would be (p,2-p^2) (-p,2-p^2) because the vertices lie on the parabola and satisfy the parabola equation
Now width =
Area = l*w =
Use derivative test
I derivative =
II derivative =
Equate I derivative to 0 and consider positive value only since we want maximum
p =
Thus width=
Length =
Width =