exam Maths Puzzle Numerical Ability

How many non-congruent triangles, each with a perimeter of 15 units, can be constructed with all integral side lengths?

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exam Other Question

Factor Completely:
x^2+16x+48

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the formula m=0.3048 coverts length in feet f to length in meters m. a building that is 270 feet tall, is how tall in meters?