20 PUNILS
An hourglass is turned over with the top part
filled with sand. After 3 minutes, there are 855
mm of sand in the top half. After 10 minutes,
there are 750 mm of sand in the top half.
Which equation represents this situation?

Use the inverse of the function y=x^2-18x to find the unknown value [tex]y = \sqrt{bx + c \: + d} [/tex]

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)