# Questions Asked onDecember 22, 2017

1. ## Science

The potential energy of a system of two particles is given by u(x)=a/x2-b/x. Find minimum potential energy of the system, where x is the distance of separation and a, b are positive constants.

2. ## Math

The second and fifth terms of a geometric progression (GP) are 1 and 1 respectively.find (a) common ratio - 8

3. ## algebra

A school fair ticket costs \$8 per adult and \$1 per child. On a certain day, the total number of adults (a) and children (c) who went to the fair was 30, and the total money collected was \$100. Which of the following options represents the number of

4. ## statistics

A box contains 10 items, of which 3 are defective and 7 are non-defective. Two items are randomly selected, one at a time, with replacement, and x is the number of defectives in the sample of two. Explain why x is a binomial random variable

5. ## Math

I need help on the lesson 3 unit 7 quiz! I work hard but everything goes out of my head! Please hurry!!! I need to take care of my mom! She has cancer!

6. ## Calculus

The side of a square is measured to be 16 ft with a possible error of ±0.1 ft. Use differentials to estimate the error in the calculated area. Include units in your answer.

7. ## American Government

I'm writing a research paper about amending the U.S. Constitution. It has to outline the procedures for amending the constitution, and explain the path of one successful amendment and one unsuccessful amendment. What would be a good title for this paper?

8. ## Grammar

Is the sentence below correct? "I am grateful for the unforgettable memories that we had with each other."

9. ## algebra

factorise-x^4-y^4+x^2-y^2

10. ## Science

How would you prepare pure dry crystals of potassium trioxonitrate (v)

11. ## Calculus

Use your graphing calculator to evaluate limit as x goes to infinity of x^(1/2x) I graphed it but couldn't figure out the limit. Answers: 1) 1 2) e/2 3) pi 4) 0

12. ## Calculus

Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 4cm and a height of 16cm, at the rate of 2 cm^3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 8 cm deep?

13. ## Calculus

What is the maximum volume in cubic inches of an open box to be made from a 16 in by 30 in piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and its

14. ## ap calc

Consider { a sin x + b, if x ≤ 2π { x^2 - πx + 2, if x > 2π A.) Find the values of a and b such that g(x) is a differentiable function. B.) Write the equation of the tangent line to g(x) at x = 2π. C.) Use the tangent line equation from Part B to

15. ## English poem

i need help writing a poem. it can be about an issue that is important to you such as environmentalism, equality, or a specific political issue, new years, or my own topic. my mind is BLANK and I have no idea how I'm going to write a 12 lined poem. It's

16. ## History

Which type of courts exercise the broad power of judicial review? A:Article I courts B:Article II courts C:Article III courts*** D:Article IV courts Which jurisdiction does the Supreme Court exercise most often? A:Original B:Exclusive C:Appellate***