√7(-8√10+√14)
-8√70+√98
-8√70+√49.2
-8√70+7√2
Just comment if you want to ask
Point A: 60
Point B: 60
Point C: 50
Point D: 50
The distance a point is from the y axis is the absolute value of the x-coordinate, because the x-coordinate is how far (and the direction) to go from the y axis. However, because it also takes into account the direction, we have to find the absolute value of it (so it is positive), since distance has to be positive.
Answer in the attachments.
Answer:
1.28 m
Step-by-step explanation:
The speed at which water rises in the tank is proportional to the speed of the water in the pipe and inversely proportional to the ratio of the tank area to the pipe area.
The ratio of tank area to pipe area is the square of the ratio of their diameters:
((150 cm)/(4 cm))² = 1406.25
Then the rate of rise of water in the tank is ...
(0.5 m/s)/(1406.25)
After 1 hour = 3600 seconds, the height of the water will be ...
rise = (time)(rate of rise)
(3600 s)(0.5 m/s)/1406.25 = 1.28 m
Yes I think you are correct.
