Answer:
8 hours.
Step-by-step explanation:
The initial water level is 24.8 meters, and the rate of water level drop is 2 meters/ hour, that means after 
hours the water level 
will be
Now we want water level to be 8.8 meters, I.e 
, therefore, we have:
we solve the equation for :
it will take 8 hours for the water level to drop to 8.8 meters.
Start by setting the function equal to 0 and then moving the -5.4 over to the other side of the equals sign.
. The first rule for completing the square is that the leading coefficient be a +1. Ours is a -.2. So we need to factor it out.
. Now we will take half the linear term, square it, and add it to both sides. Our linear term is 14. Half of 14 is 7, and 7 squared is 49. So we add 49 in to the left side just fine, but we cannot forget about that -.2 hanging around out front as a multiplier. What we have actually "added" in is -.2*49 which is -9.8. Now here's what we have after all that:
. In that process, we have created a perfect square binomial on the left. Along with expressing that binomial we will do the math on the right:
. Now we will move the -4.4 back over by addition, and it will then be apparent as to what our vertex is. The y coordinate of the vertex will give us the max height of the water.
. As you can see, our work matches choice C from above.
The answer is (1) because 7,300,000-3,900,000 is 3,400,000
The number of miles that Jose will have left after resting will be 1 1/8 miles.
Total distance to be covered = 2 3/4 miles
Distance traveled = 1 5/8 miles
Therefore, in order to get the distance that's left for Jose to complete his journey, we've to subtract the distance traveled from the total distance and this will be:
= 2 3/4 - 1 5/8
= 2 6/8 - 1 5/8
= 1 1/8
Therefore, he has 1 1/8 miles left to travel.
Read related link on:
brainly.com/question/24787936
Your missing value would be 47
