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The volume of the frustum of a regular triangular pyramid is 135 cu.m. The lower base is an equilateral triangle ...Read more
The volume of the frustum of a regular
triangular pyramid is 135 cu.m. The lower
base is an equilateral triangle with an edge
of 9 cm. The upper base is 8 m above the
lower base. What is the upper base edge in
meters?
The distance between Port A and Port B is 9 nm. If a boat travels at 18 knots to Port ...Read more
The distance between Port A and Port B is 9 nm. If a boat travels at 18 knots to Port B and returns back to Port A at 15 knots, what is the average speed for the whole journey? Note: The average speed is equal to the total distance divided by the total time of travel.
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at (1, 4, 2) and (-3, -3, 3)