The surface area of the remaining solid figure is = 6 * 4 2+4 * 6 = 72cm2.
And the volume is 4 3-6 = 58cm3.
Tortoise and Rabbit Race10000m. Rabbits run 400 meters per minute, turtles run 80 meters per minute, and rabbits rest for 25 minutes every 5 minutes. Who will reach the finish line first?
Rabbits run 5 * 400 = 2000m every 30 minutes, and rabbits reach the finish line in 30 * 5-25 = 125 minutes.
The tortoise runs 80*30 = 2400 meters every 30 minutes. Tortoise10000/2400 * 30 =125 minutes to reach the finish line.
The tortoise and the rabbit reached the finish line at the same time.
One third, one fifteenth, one thirty-fifth and one sixty-third of the known sequence ...
How to calculate the sum of the top ten numbers (1(19 * 21)) and (1(21* 23))? You have to calculate the formula
The nth number =1/((2n-1) (2n+1))
A rectangular water tank 40 cm long and 30 cm wide contains some water. When a cube is partially submerged in water, the water level rises by 0. 18cm. How many centimeters is this?
Cubic volume = 0.18 * 40 * 30 = 216cm3.
The side length of the cube = (2 16) (1/3) = 6 cm.
Draw a cuboid block with length, width and height of 4dm\3dm\3dm on its surface, and then aggregate it into 36 small cubes with 1 cubic decimeter, including (6) three-color quick blocks and (10) one-color blocks.