xyz

This page lists questions and answers that were posted by visitors named xyz.

Questions

The following questions were asked by visitors named xyz.

calculate the maximum increase in photon wavelength that can occur during Compton Scattering. (answer in pm).

Let θ be an unknown constant. Let W1,…,Wn be independent exponential random variables each with parameter 1. Let Xi=θ+Wi. What is the maximum likelihood estimate of θ based on a single observation X1=x1? Enter your answer in terms of x1 (enter as 'x_1') u...

We have two independent investments. Each of them may have a 1% chance of a loss of 10 million dollars, a 2% chance of a loss of 5 million, a 3% chance of a loss of 1 million, and a 94% chance of a profit of 1 million. (Express all the following answers i...

how to balance this partial equation given below k2cr2o7+h2so4+kI-->k2so4+cr2(so4)3+h2o+I2

if area of rectangular plot is 1250 sq cm. a smaller rectangular plot with area 1/5 of the total area and length is 7 times of its breath, find the perimeter of the smaller plot

(a) Mr. Smith divides a sum of money between his three children Alex, Billy and Charlie in the ratio 3 : 2 : 7. If Charlie received $120 more than Alex, how much money did Billy receive?

(b) If I give you $40 then the ratio of my money to yours is 4 : 5. On the other hand, if you give me $40, then the ratio is 8 : 1. How much money do both of us have?

The ratio of Jim’s money to Peter’s money was 4 : 7 at first. After Jim spent half of his money and Peter spent $60, Peter had twice as much money as Jim. How much money did Jim have at first?

You bought two varieties of rice, costing 5 cents per ounce and 6 cents per ounce each, and mixed them in some ratio. You then sold the mixture at 7 cents per ounce, making a profit of 20 percent. What was the ratio of the mixture?

The ratio of marks obtained by Ashpreet and Bhupinder on an exam is 6 : 5. If the combined average of their percentage scores is 68.75%, and the sum of their marks is 275, what was the exam out of?

If x : y = a : b, prove that x : y : (x + y) = a : b : (a + b)

points] Two alloys A1 and A2 are composed of two basic elements. The ratios of the compositions of the two basic elements in A1 and A2 are 5 : 3 and 1 : 2, respectively. A new alloy is formed by mixing the two alloys A1 and A2 in the ratio 4 : 3. What is...

Smokers. A life insurance company found that among its last 200 claims, there were six dozen smokers. What is the ratio of smokers to nonsmokers in this group ...

if X:Y =A:B show that Y:B=(X+Y):(A+B)

Today,aditi is as old as barkha will be 9 yr from now.5 yrs ago,aditi was 1.5 times as old as barkha was at that time.what will be the sum of ages of aditi and barkha 4 yr hence?

car m takes 5hr to travel from point a to b.it would have taken 6 hr,if same car had travelled the same distance at a speed which was 15km/hr less than its original speed.what is distance between a and b ? (ans 450 km)

A shopkeeper allows a discount of 10% on the marked price of a commodity which he bought at 540rs.Had he sold at marked price,he would have made a profit of 210rs.what is present sp of a commodity? ans(675rs)

A shopkeeper bought pens at a rate of 12 pens for 150 rs and sold them at rate of 10 pens for 130rs.The number of pens he should sell to earn a net profit of 20rs is?

A piece of cloth is sold for rs85.80 at a profit of 30%. if it had been sold at rs 7.50 per m ,the profit would have been rs 16.50.the length of the piece is ?

A shop-keeper sells onions at Rs 24, Rs 30 and Rs 42 a kilogram, selling the different kinds in quantities proportional to 1: 1: 3. If the total quantity sold be 60 kg, the average price obtained for each kg is:

A,B,C contract a work for 1020.together A and B are supposed to do 9/17 of work.how much C get? ans 480rs

Find the absolute Extrema of given Function, on given interval and state where those values occur. .?

Determine if the following probability experiments are binomial experiments. If not, explain why. 1) Rolling a number cube 18 times and recording the results. 2) Flipping 2 coins 20 times to test if they match half of the time.

Answers

The following answers were posted by visitors named xyz.

Is the concentration of A^- just 0.079 then?

convert the solubility to Moles per Litre.

thank u very much elena ..that was a great help..! :)

anyone? Im badly stuck on this :(

1. 0.125 2. 1/8 3. ??? 4. 0.0608 5. 1/8 6. ??? Any help?!

1. 0.125 2. 1/8 3. ??? 4. 0.0608 5. 1/8 6. ???

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Anybody answer please

Mam, answer 120.But i dont know...

sir could you please explain this problem

i owe u my life