Anyone have the TI-83 calculator?

College Majors Engineering Majors
1

<p>I'm really desperate and just need to know what keys to hit to solve this simple math problem. I'll write the problem out since I don't know how to type in exponents.</p>

<p>(8 times 10 to the 4th power) x (7.5 times 10 to the negative 6) x (4.4 times 10 to the 15th) / (1.1 times 10 to the 4th) x (2.5 times 10 to the 3rd)4</p>

<p>The last number 4 is to the 4th power and not 4 times. Again I do not know how to type exponents.</p>

<p>I know the answer is .00614 but I need to know how to get that answer. If someone is kind enough to tell me which keys to hit to solve the problem. PS I know how to use the shift key so to make things shorter you can just say the name of the key. I also know how to use the negative. I think I'm making a mistake on the bottom of the fraction. Could be something as simple as a parenthases but I've been trying for an hour now...</p>

<p>Please help</p>

2

<p>I don't have a TI-83, but if you want to get 0.00614, try multiplying the last two terms before you do the division:</p>

<p>[ (8 E4) x (7.5 E-6) x (4.4 E15) ] / [ (1.1 E4) x (2.5 E3)^4 ] = 0.006144</p>

3

<p>The power key is above division. press second (the yellow key) and ^.
Or you can use E instead of power which is the comma key but you have to press 2nd first.</p>

4

<p>Or you can just do the base 10 calculations in your head.</p>