Power - practice for 12 year olds - page 4 of 7
Number of problems found: 135
- Increased 12441
A car traveling at a speed of 25km/h increased the speed to a) 75km/h b) 100km/h when exiting the highway. How many times has its kinetic energy increased? - Cylinder 11141
The area of the cylinder shell is 300 cm², the height of which is equal to the diameter of the base. Find the surface of the cylinder. - Centimeters 10881
Calculate the perimeter of a square if its area is 6.25 square centimeters. - Function 8437
Express the volume of a cube as a function of its edge size.
- Simplify
Simplify powers multiplication: (3+2²)(5-4²) - Calculate 8327
Calculate the surface area of a cube with a volume of 262,144 cm³. - Cube into cylinder
If we dip a wooden cube into a barrel with a 40cm radius, the water will rise 10 cm. What is the size of the cube edge? - Cube root
For 13, Sam wrote 2891 instead of the correct cube number. By how much was he wrong? - Performance 7682
They produced 8,892 cans in the production hall. Their performance is in the ratio 11:12:13. Which workshop was the hardest, and how many cans did it make?
- Area to volume
If the surface area of a cube is 486, find its volume. - A tile
A tile setter is covering a 5ft by 5ft square shower wall. Each tile covers 4 5/8in by 4 5/8in a square. How many rows of tile are needed to reach 5ft? How many tiles are needed to cover 5ft by 5ft square - Millimeter 7269
The road is paved with 2500cm cubic cubes. Calculate the edge size to the nearest millimeter. - Volumes 7252
The block and the cube have the same volumes of 512 cm3, and the block has edge lengths of b = 6.4 cm and c = 10 cm. Can a cube and a block have the same edge length? - Cube surface and volume
Find the surface of the cube with a volume of 27 dm³.
- Edges or sides
Calculate the cube volume if the sum of the lengths of all sides is 276 cm. - Quarter of a circle
Calculate the circumference of a quarter circle if its area is S = 314 cm². - Factors 2
A number has three identical factors. If 1 of them is 18. Find the number step by step - No smoke
Tobacco company NO-SMOKE adorned its stand at the cigarette-type trade fair with cigarette-shaped. The dimensions of which were 20 times the size of a regular cigarette. Regular cigarette contains 0.8 mg of nicotine. How much nicotine would a giant cigare - Solve: 6632
For n ϵ N solve: 100 = (0.01n)²
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