If f(x)= 2x then f ^-1(x)=

a. -2x
b. 1/2x
c. x-2

You are supposed to simplify (2+h)^{2}-2*(2+h)

1/2x

Step-by-step explanation:

f(x)=2x. This means that f=2 (since x=x)

2^-1= 1 divided by 2. 1/2= 0.5.

0.5(x)=1/2x.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}