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If 2x\(^2\) - kx - 12 is divisible by x-4, Find the value of k.
Make Q the subject of formula when \(L=\frac{4}{3}M\sqrt{PQ}\)
A book seller sells Mathematics and English books. If 30 customers buy Mathematics books, 20 customers buy English books and 10 customers buy the two books. How many customers has he altogether?
If X = {n\(^2\) + 1:n = 0,2,3} and Y = {n+1:n=2,3,5}, find X∩Y.
If \(\frac{1+\sqrt{2}}{1-\sqrt{2}}\) is expressed in the form of x+y√2 find the values of x and y
If log\(_{x^{\frac{1}{2}}}\)64 = 3, find the value of x
simplify \(16^{\frac{-1}{2}}\times 4^{\frac{-1}{2}} \times 27^{\frac{1}{3}}\)
The cost of kerosene per liter increased from N60 to N85. What is the percentage rate of increase?
calculate the simple interest on N7,500 for 8 years at 5% per annum.
Express 123456 to 3 significant figures
Evaluate \(\frac{\left(\frac{3}{8}\div\frac{1}{2}+\frac{1}{2}\right)}{\left(\frac{1}{8}\times\frac{2}{3}+\frac{1}{3}\right)}\)
If 125\(_x\) = 20\(_{10}\) find x
Add 1101\(_2\),10111\(_2\) and 111\(_2\)