Answer:
2.8
Best of luck
Step-by-step explanation:
6 + 1.5x = 2x
6 = 0.5x
12 = x
6 + 1.5 (12) = 24
2(12) = 24
It will take them twelve years to have the same height.
They both will be 24 feet when they have the same height.
Answer:
1 cm
Step-by-step explanation:
Since the perimeter is 4 cm and all the sides of the square have the same length, each side must be 1 cm long.
The area of that square is 1 cm x 1 cm, which is 1 cm2.
Answer:
yeh i rlly tried but its was rlly hard
Step-by-step explanation:
Answer:
base side = 20cm
height = 40 cm
minimum cost = $7200
Step-by-step explanation:
Let x (cm) be the base side and h (cm) be the height of the box. Since the volume of the box must be 16000 cubic cm, we have:
The areas of the top and bottom is
And so their cost is:
The areas of the sides is
And so their cost is:
We can substitute into the equation above to get
So the total cost of the bases and the sides:
This is the function we would want to minimize. We can start by taking the 1st derivative, and set it to 0
So the height would be
So the minimum total cost would be