2011/2012 LAUTECH Mathematics Post-UTME

A micrometer is defined as one millionth of a millimeter

An arc of a circle of radius 6cm is 8cm long
Find the area of the sector.

If S=(x:x2=9,x > 4), then S is equal to

At what value of x is the function
y=x²-2x-3 minimum?

In how many ways can 9 people be seated if 3 chairs are available?

The H.C.F of a²bx+ab² and a²b-b³ is

The probability of picking a letter T from the word OBSTRUCTION is

Father reduced the quantity of food bought for the family by 10% when he found that the cost of living increased by 15%. Thus the fractional increase in the family food bill is now:

A pentagon has four of its angles equal. If the size of the fifth angle is 60º, Find the size of each of the four angles

If x² +4=0, then  x =