Mathematics, 23.11.2019 02:31 anonymous176
Awise old troll wants to make a small hut. roofing material costs five dollars per square foot and wall materials cost three dollars per square foot. according to ancient troll customs the floor must be square, but the height is not restricted.
(a) express the cost of the hut in terms of its height h and the length x of the side of the square floor. ($)
(b) if the troll has only 960 dollars to spend, what is the biggest volume hut he can build? (ft^3)
Answers: 2
Mathematics, 21.06.2019 13:30
The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?
Answers: 3
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