A la llegada de los conquistadores se calcula que existia en cuba aproximadamente un 95% de la suferficie territoria cubierta de bosques en el año 1902 habia un 54% y en 1959 solo quedaba un 14%. Si este pais en la actualidad tiene una superficie boscosa de 2.405.400 ha. ¿Que por ciento de la superficie territorial esta cubierta de bosques? Dato superficie territorial de cuba 110.992km²

on friday there were 15 birds

-1/2 +2

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places