chemistry
If something originally contained 32.0 g of Po-210, which has a half-life of 10.5 minutes, and was now 73.5 minutes old, how many grams would be left?
Polynomials
Let f(x) be a polynomial such that f(f(x))−x^2 =xf(x). Find f(-100)
Math
1. What is the total sales tax to be paid in 2012 on the purchase of a 2012 passenger vehicle with a selling price of $17,000 and a $2,000 trade-in allowance?
statistics
A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.07 ounce. You can allow the cup to overfill 2% of the time. What amount should you set as the mean amount of coffee to...
statistics
a basketball scout randomly selected 144 players and timed how longeach player took to perform a certain drill. The times in the sample were distributed with a mean of 8 mins. The population standard deviation was known to be 3 minutes. Using a 95% confidence interval, estimat...
Algebra
A car rental agency advertised renting s car for %26.95 per day and @0.34 per mile. If David rents this car for 4 days how many whole miles can he drive on a $150 budget?
social studies
thank you
social studies
what are some exploration thomas jefferson made, and thomas jefferson federal courts information
Physicss
a typical woman gives off heat at rate of about 8000 calories per hour. how long would a woman have to stay in a bath of 60L (60,000 g) of 26 C water in order to raise the water temperature to 30 c ? presume that all the heat given off by the woman is transferred to the water...
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