Algebra
posted by Tatiana .
We are learning using the log button in algebra. I have a TI83 calculator. My book says that log10 85 (there is no space between thet 10 and the 85, that's just to show the different numbers) is equal to 1.93 approximately. But I got 85. How do you properly type this in? Thanks for your help!!!

Think of doing it without a calculator first. To what power would you raise a base of ten in order to get the number 85? Think of the relationship between logs and exponents! 10 ^ 1.93= 85.11380382. The subscripted number is the base (a bass voice is a low voice). What the log expression equals is the exponent. Does what you have look like this? log with a lowered 10 85= ?. The question equals 1.93.