book
Maths Puzzle
Numerical Ability
explain why funtion y=x square has no inverse,suggest how many inverses can you define for it? sketch all of them
Read Solution (Total 0)
book Other Question
The period (the time required for one complete swing) of a simple pendulum varies directly as the square root of its length. If a pendulum 12 feet long has a period of 4 seconds, find the period of a pendulum 3 feet long.
A parabola y=ax^2+bx=c has a vertex (5,-3). If (6,0) is on the parabola,
then a+b+c=