Working alone, Jared can dig a 10 ft by 10 ft hole in five hours. James can dig the same hole in six hours. How long would it take them if they worked together?

2.73

Step-by-step explanation:

james=5hrs

jared=6hrs  

1/5+1/6=1/x       x= Time together

6x/30x+5x/30x=30/30x

11x=30

x= 2 8/11

(2hrs 44min)

Answer is A. 30 degree

as we know that two prependicular lines have 90 degree angle between them

and similarly a horizontal line has angle zero degree.

the angle of pic shown is approximately 30 degree as it lies between prependicular and horizontal nature of lines

but as we can see that it is close to horizontal nature of the line that's why its approximate angle is 30 degree.