There is a cube iron block with an edge length of 80 cm. Now we need to melt it into a cuboid with a cross-sectional area of 20 square cm. How long is the cuboid

There is a cube iron block with an edge length of 80 cm. Now we need to melt it into a cuboid with a cross-sectional area of 20 square cm. How long is the cuboid

Square volume = 80 * 80 * 80
So length = (80 * 80 * 80) / (20) = 25600 cm

There is a cube iron block with an edge length of 80 cm. Now we need to melt it into a cuboid with a cross-sectional area of 200 square cm. The cuboid is 80 cm long

What's the volume of the iron
80 × 80 × 80 = 512000 (cm3)
The length of a rectangular iron block
512000 △ 200 = 2560 (CM)

There is a cube iron block with an edge length of 80 cm. Now we need to melt it into a cuboid with a cross-sectional area of 20 square cm. The cuboid is 80 cm long
How many centimeters?

The length of this cuboid: 80 × 80 × 80 △ 20 = 25600 cm

Given that the domain of function y = f (3 ^ x) is [- 1,1], then the domain of function y = f (x) is

-1=