A supervisor records the repair cost for 22
randomly selected VCRs. A sample mean of $75.50 and standard deviation of $18.07 ...
integrate x/(x²+y²)³
ake p the subject of this formula
c = $\frac{p-7}{p+12}$
(3x+k)(x+k) = 3x^2+mx+49
Work out the two possible pairs of values that k and m can take
If L be a lattice, then for every a and b in L prove that a ˄ b = a if and only if a ≤ b.
9/6
You have 3 yellow M&M's, 6 blue M&M's, and 9 red M&M's. How many distinct ways are there to arrange these in a line?
11-\frac{2x.In(x)-x+4.In(x)-4}{{\rm In}^2\ (x)}
2y^3 -9y^2 -28y-15
5X+9=-5X-2
