9514 1404 393
Answer:
3.5 hr
Step-by-step explanation:
We assume that "the same rate" means effort per tree is a constant. "Effort" is measured as the product of lumberjacks and hours. Then ...
(lumberjacks)(hours)/trees = (6)(2)/15 = (8)(t)/35
Multiplying by 35/8, we have ...
(35/8)(12/15) = t = (3·4·5·7)/(2·3·4·5) = 7/2 = 3.5
It will take 8 lumberjacks 3.5 hours to cut down 35 trees.
4) 28 this is the right answer
Answer:
Value is 1.
Step-by-step explanation:
To find the value of 
is always equal to 1, but if zero to the power 0 is not defined.
Or simply we say that:
is always equal to 1
Here,
A non-zero number = 30 ≠0
then;
by definition:
Therefore, the value of is 1
