Respuesta :

wegnerkolmp2741o

Answer:

 1.3917

Step-by-step explanation:

logb 15 =

We know that log (ac) = log a + log c

logb 15 = logb (3*5)

          = logb (3) + log b (5)

logb(3) = 0.5646  and  logb(5) = 0.8271

          = 0.5646 +  0.8271

             1.3917