What is the correct vertex for the function f(x)=x2-x+2

(1/2,7/4)

Step-by-step explanation:

x=-b/2a

x=1/2

y=(1/2)^2-(1/2)+2

y=1/4-2/4+8/4

y=7/4

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)