exam
Maths Puzzle
Numerical Ability
The sum of two numbers is twice their difference. The larger number is 6 more than twice the smaller. Find the numbers.
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exam Other Question
Velocity. If a ball is dropped from a height of 256ft. then the formula v(t)=
-32t expresses its velocity in feet per second as a function of time in "t" seconds.
a) Find the v(0), the velocity of the ball at time t=0
b) Find v(4)
I'm trying to solve the equation of a circle with the following vertics. (0,0), (20,0) and (0,21).
It appears to me that there is no solution. If you plot the points on a graph