Answer:
Step-by-step explanation:
When equal bases are multiplied, the powers add.
The bases of both expressions is x.
The powers are 5 and 7.
The answer is x^(5 + 7) = x^(12)
The newspaper carrier can deliver 147 newspapers in 3 hours
Answer:
Step-by-step explanation:
La función es
Diferenciando con respecto a 
obtenemos
Igualar con cero
Doble derivada de la función
Entonces, la función es máxima cuando el número de unidades vendidas, 
,
2/5 is equivalent to 4/10 so at the end of February 4/10 was used up
And at the end of January, 3/10 was used
so 4/10 + 3/10 = 7/10
At the end of February, 7/10 of the wood was used
