To empty the pool, you need to lower the water level by 150cm. since you can only lower it by 30cm every 2 hours (also same as 15 cm per hour), that means it will take you 10 hours.
150cm*(2 hours)/(30cm) = 150*(1/15) = 150/15 = 10.
6 a.m. + 10 hours = 4 p.m.
So the answer is C.) 4 p.m.
One of the rules of logarithms is as follows;

We can now insert the corresponding values in the question provided, as shown below;

Note that, one of the rules of exponents, states that a number when raised to the power of a negative value, is equivalent to the reciprocal of that expression. An example is shown below;

Therefore, our equation can now be re-written as follows;

However, the question requires the answer to be expressed in exponential form. Therefore,
Answer:
x = 1,-1 2 real roots
Step-by-step explanation:
PLEASE GIVE BRAINLIEST
Answer:
I think strong positive
Step-by-step explanation:
.......
Answer:
x>2
Step-by-step explanation:
Step 1: Subtract 60x from both sides.
100x−200−60x>60x−120−60x
40x−200>−120
Step 2: Add 200 to both sides.
40x−200+200>−120+200
40x>80
Step 3: Divide both sides by 40.
40x/40> 80/40
x>2
Hope this helped :)