Question

find domain of f(x) = 1+ e ^(-x)

Answer 1

All real numbers. There's no restriction on what you can plug in for x

Answer 2

can you show work for me ?

Answer 3

There's not really any work, you just look at it and say i can put any x value in there and get a valid output...

Answer 4

can you help me 1 more problem ?

Answer 5

$3500 is invested at the rate of 9% compounded continuously . What is the balance at the end of 18 years ?

Answer 6

I think you would use

\[\large A=Pe^{rt}\]

\[\huge A=3500e^{.09*18}\]

Answer 7

thkss i got before you reply =))

Answer 8

Yeah sorry had to look it up =/

Answer 9

log (3x+7 ) + log ( x-2 )...solve x ???

Answer 10

Theres no equal sign

Answer 11

=1

Answer 12

sorry my bad ... log (3x+7 ) + log ( x-2 ) =1

Answer 13

ok well combine the left side

\[\log [(3x+7)(x-2)]=1\]

then apply base 10 exp. to both sides which will cancel the log

\[(3x+7)(x-2)=10^1\]

Answer 14

Now what?

Answer 15

log = 10 ?

Answer 16

No...theres no more log we got rid of it, solve for x

Answer 17

ok ok thks so much , give you 10 medals

Answer 18

determine which of the following angles of t = 2pi/7