A solid piece of silver has a mass of 2.625 kilograms . Volume 250cm cubed . Work out the denisity of the piece of silver

The solution set for 5v2 – 125 = 0 is

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.