Atypical 35 year old man as a has an age adjusted maximum heart rate of 185 bpm (beats per minute). to maintain top conditioning and athletes should exercise so that his or her heart rate is between 80% and 90% of his or her maximum heart rate for at least 30 minutes a day 3 days a week calculate the range of pulse rate for this level of exercise.

Abig remake 100 loaves of bread in one day how many loaves does the bakery make in 6 days

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

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?