You are given fifteen stones which look and feel identical. One of them contains a valuable gem worth $ 500,000 which is yours if you can correctly identify it. The gemstone is slightly lighter than the other 14 stones (but not enough lighter to detect by lifting or comparing). You have a balance scale which you can use no more than three times. After three uses the balance scale can never be used again. How can you be certain to find the stone with the gem. If you guess at any point you lose the chance to win the gemstone.

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation:

i think it is 18

step-by-step explanation:

table 3 represents a direct variation function. : )

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.