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a right circular cylinder has a fixed height of 6 units. Find the ratio of change of its volume(v) with respect to the radius(r) of its base.

Find how fast (a) the circumference (b)the area, if a cicle increases when the radius increases.

an object falls from a plane flying horizontally at an altitude of 40,000 ft at 500 mi/h. How long will it take to hit the ground?

An 80.0-gram sample of a gas was heated from 25 degrees celsius to 225 degrees celsius. During this process, 346j of work was done by the system and its internal energy increased by 7785j. What is the specific heat of the gas?

If 350 grams of pure fe2o3 is used, how grams of can be produced? the reaction is: fe2+3c---2fe+3co

find the sum of the following series a. 5, 9, 13, ..., 101 and c. 83, 80, 77, ..., 5 thank you!!

45036

1.79

60

This is my solution. 1) fY|N(y∣N=3)=84 y^6 (1-y)^3 2)0.0636363 3)0.0383746 it's correct?

This is my solution. 1) fY|N(y∣N=3)=84 y^6 (1-y)^3 2)0.0636363 3)0.0383746 it's correct?

This is my solution. 1) fY|N(y∣N=3)=84 y^6 (1-y)^3 2)0.0636363 3)0.0383746 it's correct?