The first tap can fill the pool in 10 hours. when the second tap was opened, the empty pool was filled in 6 hours. how long will it take the second tap to fill the pool alone?

15 hours

Step-by-step explanation:

We can use the formula below to solve this:

Where

t is the time taken for BOTH to fill up the pool [6 hours]

a is the time taken by first tap [10 hours]

b is the time taken by second tap [we need to find this]

Now putting in all the into and solving for y, we get:

Hence, its gonna take 15 hours for the second tap to fill the pool alone.

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

its an acute right triangle

step-by-step explanation: