Fireworks are fired from the rode of a 100-foot building. The equation h= -16t2+84t + 100 models the height, h, of the fireworks at any given time, t. How high do the fireworks get?
at any given time to How high to the fireworks get?

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?