The function t(n) is defined below. which of the following are equal to t(8)? check all that apply.

t(n) = 4n - 5

a.

27

b.

37

c.

t(5) + t(3)

d.

t(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)