An order has arrived that the original cube must be broken down into eight cubic pieces of marble, all of the same dimension of 6 square feet per cube. What is the total surface area of the marble now?
A stonemason has shaped a block of marble into a perfect cube with dimensions of 2 feet by 2 feet by 2 feet.
What will be an ideal response?
Answer: The cube has now been broken into eight smaller cubes with the dimensions 1 foot by 1 foot by 1 ft, equaling a total surface area of 6 square feet per cube; 8 times 6 square feet equals 48 square feet. So the surface area is increasing.
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According to the United Nations, from 30% to 60% of all water supplied in all of the world's major cities in developing countries is
a. used for crop irrigation b. lost through leakage of water mains, pipes, pumps, and valves c. recycled as grey water d. used for watering landscaping e. polluted
Water is an example of a nonrenewable resource
Indicate whether the statement is true or false
Select the single case from the following that will result in the shortest tidal range.
A. The Earth-Sun and Earth-Moon lines are at an angle of 45° to each other in January B. The Earth, Sun and Moon are fully aligned in January C. The Earth-Sun and Earth-Moon lines are at an angle of 45° to each other in July D. The Earth, Sun and Moon are fully aligned in July E. The Earth, Sun and Moon are fully aligned in January, but the Sun and Moon are on opposite sides of the Earth
There is more land located in the Northern Hemisphere than in the Southern Hemisphere
a. true b. false