exam
Maths Puzzle
Numerical Ability
A plane travels 1800 miles against a headwind in 4 hours. The return trip, now with a tailwind, takes an hour less. What is the rate of speed of the wind?
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need help - want to make sure i did these correct!
Need standard form for the following (ellipses)
1. 3x^2-6x+y^2+8y-8=0
2. 4x^2-8x+5y^2-20y-4=0
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The formula A = 6v^2/3 gives the surface area a cube in terms of its volume V. What is the colume of a cube with surface area 12 square feet?