Question

6=14.7e^-0.0000385h

Answer 1

How do you solve this? :(

Answer 2

is the h a unit of measurement?

Answer 3

Yup

Answer 4

The air pressure p(h) (in lb/in2) at an altitude of h feet above sea level may be approximated by the following formula. At approximately what altitude h is the air pressure 6 lb/in2? (Round to the nearest foot.)

Answer 5

ok, take divide both sides by 14.7 and take the natural log (ln) of both sides to get h= #

Answer 6

wait... so ln(6/14.7)=-0.0000385h?

Answer 7

yes

Answer 8

But then you run into the same problem... e^x = 6/14.7

Answer 9

Until you solve for x, you can't solve for h

Answer 10

\(\bf \large 6=14.7e^{-0.0000385h} \quad ?\)

Answer 11

mhmm

Answer 12

try getting a number for ln(6/14.7) [my calc says -0.896088024556635]
and then divide by -0.0000385

Answer 13

Oh...

Answer 14

FYI h is not a unit of measurement, it is the variable

Answer 15

https://www.google.com/search?client=opera&rls=en&q=arctan(20/21)+in+degrees&sourceid=opera&ie=utf-8&oe=utf-8&channel=suggest#channel=suggest&psj=1&q=ln(6%2F(14.7))%2F(-0.0000385)&rls=en