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Maths Puzzle
Numerical Ability
I dont understand how to solve a problem that states : Find the area of a rectangle with L=2x+3 and W = x-2
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A ship using sound-sensing devices above and below water recorded a surface explosion 39 seconds sooner on its underwater device than on its above-water device. If sound travels in
The question is: The formula V=De(raised) to the -kt+Vr
gives the value of an item V as a function of time t, where Vr is the residual value, D is the difference of the items orig