Question

Air pressure may be represented as a function of height above the surface of the Earth as shown below.
P(h) = P_0 e^-.00012h



In this function, P0 is air pressure at sea level, and h is measured in meters. Which of the following equations will find the height at which air pressure is 85% of the air pressure at sea level?

P_o =.85P_o e^-.00012h
.85p_o=p_o e^-.00012h
h= .85 e^-.00012h
.85 =h x e ^-.00012h

Answer 1

http://giffiles.alphacoders.com/426/426.gif

Answer 2

It's a bit messy, but this is how the question looks like.

Answer 3

I think I can actually do this o-o

Answer 4

I'm thinking its either A or B.

Answer 5

Since it is asking when the air pressure is at 85%.

Answer 6

so Po is the air pressure at sea level, and height is represented by h

Answer 7

so we replace the 85% to Po

Answer 8

sham its C :)

Answer 9

you aren't solving for it. no that's the height -.-

Answer 10

sham, the question is asking u to find the height right? where the air pressure is 85% of the air pressure sea level?

Answer 11

hm

Answer 12

u replace Poe (air pressure sea level) with .85e

Answer 13

and since its asking u to find the height it would start with h = . u know what I mean?

Answer 14

could be D too then

Answer 15

oh well guessing iti s

Answer 16

nu uh, dosen't find the height :3 its all in the problem: P(h) = Poe -.00012h. it gave u the air pressure (85%) it cant be B or D :) just messes up with the formula

Answer 17

HUZZAH

Answer 18

no it doesn't. E is a constant you would just take the natural log .

Answer 19

but ill go with c. doubtfully

Answer 20

sham, u better have an excuse when u get it right

Answer 21

hue hue

Answer 22

look sham: an example :D http://answers.yahoo.com/question/index?qid=20111206220325AAtwAGX

Answer 23

oh wait thats different