Thanks again, I hope to remember all this information tomorrow. 8) :?

Thanks. Is there a rule I should know when adding numbers of different base and same exponent?

Increase in population

If in a certain population, people are born at an average rate of 9 people every 2 seconds and people die at an average rate of 3 people every 2 seconds, by approximately how many people does the population increase in 1 day? 17, 280 25,920 129,600 259,200 388,800 I got the correct answer, but it to...

Range Question

Can anyone explain me why the solution to this is 1 only and not all 3?

0 < r < 1 < s < 2, which of the following must less than 1?

I used r=.9 and s=1.1

1. r/s = .9/1.1=.8181< 1

2. rs = (.9)(.1.1)=.99<1

3. s-r = 1.1-.9=.2 < 1

Thank you.

Temperature word problem

Can anyone explain this problem to me? the temperature of a certain cup of coffee 10 minutes after it was poured was 120 degrees fahrenheit. if the temperature f of the coffee t minutes after it was poured can be determined by the formula f=120(2^-at) + 60, where f is in degrees fahrenheit and a is ...