I am stuck on this one part of this question:
The function S(d)=93(logd)+65 relates the speed of the wind S, in miles per hours, near the centre of a tornado to the distance that the tornado travels,d,in miles. If a tornado has sustained winds of about 250 mph, estimate the distance it can travel.
I do this :
250= 93logd +65
185/93= logd
logd= 0.989247312
I don't know what to do after that because I cannot divide anything by log. Or is there some other way I should be doing this?

1. 👍 0
2. 👎 0
3. 👁 274
1. You have to take the inverse of log, that is ...

what number d you you need, so that log d = .989...
BTW, I got log d = 1.9892....
hope yours was just a typo.

On most calculators, use the 2ndF key

on mine, I would press the following:

2ndF
log
1.98924..
=

to get 97.5545

Without having to re-enter the 1.98...

Here is the sequence of my keystrokes

250
-
65
=
รท
93
=
2ndF
log
=

to get the 97.5545

1. 👍 0
2. 👎 0
posted by Reiny

## Similar Questions

1. ### Physics

An automobile tire has a radius of 0.380 m, and its center moves forward with a linear speed of v = 19.0 m/s. (a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the

asked by La' TGasha on April 3, 2008
2. ### Chemistry

Please help me with this chemistry question? I am working on a lab report and I am stuck on this question: Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in

asked by Jessie on September 8, 2009
3. ### Quantum Physics

Has anyone done Block 7-8 for TMA 6 for s103 - discovering Science, as i am struggling big time, any help would be much appreciated yes i am like you really phased by this how much of the tma have you managed to do Me, too what r

4. ### math help1

Okay I am a little bit confused about one math question can you please Help me out? There is two parts but I already finished part a just stuck on part b Okay so part a. draw the reflection of f(x) = (square root X-2) in the Line

asked by kris! on September 12, 2006
5. ### Derivatives

Find f'(x): (abs(((x^2)*((3x+2) ^(1/3)))/((2x-3)^3)) So I thought I should split it into two parts: A and B. A) (x^2)/((2x-3)^2) B) ((3x+2)^(1/3))/(2x-3) My plan was to differentiate each part and then multiply them together,

asked by Erika on May 24, 2013
6. ### math - ans.check

Given function G(x)=-7/8(45-x), find x to nearest tenth, when G(x)=15 ____________________________________ I'm stuck on this question,i tries on my own but i couldn't get it right, plz help! 15=-7/8(45-x) -8/7(15)=45-x

asked by troy on February 17, 2015
7. ### Math

I can't figure out this question. I tried asking my classmates and teacher, but no help. Except one girl but I didn't understand. Can you help me? Question; A person who weighs 130 pounds can burn about 300 calories per hour

asked by Cassie on June 10, 2014
8. ### Math

Hi. The question I'm having problems with: Write the body of an iterative function to compute n!, where n! = n(n-1)(n-2)...1. Then, analyze this function where the work unit is the multiplication operation. I think I have the

asked by Iah on May 3, 2007
9. ### Psychology

I am writing a paper and am stuck on one part can some give me an idea what i am needing. paper in which you analyze the function of emotions as motive. Be sure to address the following items on your analysis: This is the part I

asked by TOM on October 17, 2008
10. ### Math

I am doing a warm up and got stuck on a function question x : 2 3 4 f(x): 2 1 0 Can someone help me figure out the function rule?