If (x+4)2=9 and (y+3)2=25, then the minimum value of y/x is----

Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many millilit...

If c and d are two integers and @ is defined in p an q as @ (p, q)=(p+1)(q+2), and @ (c, d) equals the product...

The probability of rolling any number of an wighted 6-sided die, with faces numbered 1 through 6, is directly...

In dividing a number by 585, a student employed the method of short division. He divided the number successive...

Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km re...

In the formula e = hf . if e is doubled and f is halved , what happens to the value of h?