Answer:
Water level in the reservoir is falling at the rate of 0.398 ft per minute.
Step-by-step explanation:
From the figure attached,
Water level in the reservoir has been given as 10 feet and radius of the reservoir is 4 feet.
Let the level of water in the reservoir after time t is h where radius of the water level becomes r.
ΔABE and ΔCDE are similar.
Therefore, their corresponding sides will be in the same ratio.
--------(1)
Now volume of the water V =
From equation (1),
V =
V =
Since feet³ per minute and h = 5 feet
feet per minute
Therefore, water level in the reservoir is falling at the rate of 0.398 feet per minute.
Answer:
A 60m steel pole is cut back into 2 areas, in the ratio 11:4. at first, you upload the figures in the ratio, 11 and four, to be sure what the linked fee of one section equals. 11 + 4 = 15 60/15 = 4. So one section equals 4m. Substituting this back into the ratio, 11(4):4(4) 44m:16m The longer pole is 44m and the shorter one is 16m. the version between the two is 40 4 - sixteen = 28m The longer one is 28m longer than the shorter one. desire that helps. =D
Answer:
-4(a - 4)
Step-by-step explanation:
Two very good apps that I use for Algebra is (ill put it in the comments)
hope this helps!!!
it won't let me put the link. im sorry.
Answer:
Step-by-step explanation:
sin930 degree
sin(180*6-150)
sin150 degree