exam
Maths Puzzle
Numerical Ability
Solve by completing the square. Show your steps: 2x^2 - 3x + 5 = 0
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exam Other Question
When a rock is dropped from a cliff into an ocean, it travels approximately 16t squared feet in t seconds. If the splash is heard 4 seconds later and the speed of sound is 1100 ft/sec, approximate the height of the cliff.
If y is directly proportional to x and inversely proportional to the square of z, and if y=0.384 when x=6 and z=5, find the constant of variation.