Hi There the correct answer to this is The diagonal of a cube is the square root of 3x^2, where x is a side of length....The three dimensional diagonal is the counterpart to the two the dimensional hypotenuse found in a right triangle...mathematically a three dimension diagonal can be found with an extension of the Pythagorean Theorem adapted to the three dimensions...
d^2=x^2+y^2+z^2 but since we are dealing with a cube, x=y=z=s where s is a side lenght...
d^2=3s^2 and we are told that the diagonal is 30 in. so
What is the probability that it does not rain tomorrow, if the probability that it ... Find the probabilities that a child selected at random, ... (a) A bag contains 2 red marbles, 1 blue marble and 1 yellow marble. ... In February 1995 it rained on 18 days. ... A card is taken at random from a full pack of playing cards with no jokers.
So what you do is take 3.50 then subtract 1.50 to get the profit of one cup of coffee. ($2) Then you do the $100 and divide it by the $2 and find out how many cups of coffee he has to sell to get to the $100. (50)