Cellular phone companies often package their products to make them more attractive to potential users. if you average 356 minutes per month in talk time which package is the better deal. package A: free phone and 300 minutes. it will cost 0.12 per minute for each minute over the plan time. package A has a base rate of $39.95. package B: phone costs $10 and has 350 minutes of time and 0.08 per minute for each minute over the plan time. package B has a base rate of 35.95 not including the phone.

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles