Question

solve the equation, e^y+5=9

Answer 1

e^y = 4
y=ln 4

Answer 2

e^y = 4
y = ln 4 = 1.386

Answer 3

e^y = 4 means y = ln 4 by definition.

Answer 4

i shouldve been more specific its e^(y+5)=9 does the rule still apply?

Answer 5

oh = then
y+5 = ln 9

Answer 6

okay, good thats what i got too, i just wanted to double check my work. thanks!

Answer 7

yw

Answer 8

shouldnt the answer be around 2.19? the answers im given to choose from are 7.2, .44, -2.8, and -4.05

Answer 9

Set z= y+5 -> e^z = 9 -> z = ln 9
y+5 = ln 9 -> y = ln9 -5 = -2.80 to 2 dp