exam
Maths Puzzle
Numerical Ability
I was wondering how do I work this problem. It has me stumped.
Is the square root of x^2 = x an identity (true for all values of x)?
Thanks for your time.
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exam Other Question
you purcashed on pound of candy for $7. at what price do you need to mark the candy forr salein your candy shop, if you wish to offera 48% discount to your customers, but you need to earn a 56% profit on the original cost?
For the set of data below, find the line of best fit.
x -2 -1 0 1 2
y 7 6 3 2 0
a. y = -1.8x + 3.6
b. y = -0.54x + 1.95
c. y = 3.6x - 1.8
d. y = 1.95x - 0.54
e. None of the others