A pilot needs to know the maximum height an aircraft can fly at. The cabin has been tested and is safe to a height of 15679 m.
Round this height appropriately: to a whole number of kilometers and to a whole 100m. Please help.

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)

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

answer. d.289 hope that