Sunday

April 20, 2014

April 20, 2014

Total # Posts: 68,195

**calculus**

Twenty feet wire is used to make two figures? What is the maximum areas of enclosed figures.

**socials TO MS SUE OR ANYONE**

List the factors that supported the confederation in the canada colonies in the 1800s and the factors that went against the confederation in the colonies. PLEASE help ASAP!!!!

**statistics**

Survey on concern for criminal in a survey 3 of 4 students said the court show too much concern for criminals find the probability that 3 out of 7 randomly selected students will agree with this statement

**sociology**

5. Which evidence would best support the claim that prayer in school should be allowed? @This is a holistic problem answered by studying various aspects of chapter 2. (Points : 1)

**arithmetic**

Select the first five terms in the arithmetic sequence an = 4n, starting with n = 1.

**Chem Please Help**

Thanks!

**Chem Please Help**

If a 2.30 M sample of A is heated to 500 K, what is the concentration of B at equilibrium? A<-> 2B Kc= 5.04x10^-6 at 500k

**math**

When I am rounded to the nearest ten I am 40 the sum of my digits is 8 what two numbers can I be

**Programing**

Write a full program that reads in an arbitrary sequence of integers from the standard input, and writes them to the standard output in sorted order and with all duplicates removed. You may assume the input contains at most 100 integers . What I have is #include<iostream>...

**Programing**

Given two 3x3 arrays of integer , x1 and x2 , write the code needed to copy every value from x1 to its corresponding element in x2 . So far I have void main() { int x[3][3]; for(i=0; i<x1, i++) { for(j=0; j<x2, i++) { x[i][j]=i; cout<<x[i][j]<<" "; ...

**physics**

The figure below shows a claw hammer being used to pull a nail out of a horizontal board where θ = 32.2°. The mass of the hammer is 1.00 kg. A force of 125 N is exerted horizontally as shown, and the nail does not yet move relative to the board. Assume the force the h...

**Physics**

What element results if two protons and two neutrons are ejected from a radium nucleus?

**college physics 2**

A healthy astronaut's heart rate is 60 beats/min. Flight doctors on Earth can monitor an astronaut's vital signs remotely while in flight. How fast would an astronaut be flying away from Earth if the doctor measured her having a heart rate of 28 beats/min?

**Science URGENT**

He said he's not giving us the answers and I really need to check my answers all the time but I can't cause the answers don't come with the textbook. And I don't find it fair cause our math text books have the answers so why don't our science texts? But any...

**Science URGENT**

Ignore this question

**Science URGENT**

Is there any website or any way I can get the science probe 10 check your understanding answers cause I want to check my answers?

**math**

Find the percent if discount when the regular price for a DVD recorder is $250 and its sale price is $175

**Science**

The text book is called BC science probe 10 It's for grade 10

**Science**

Is there any website or any way I can get the science probe 10 check your understanding answers cause I want to check my answers?

**math**

Thank you so much! :D have a nice night

**math**

Please help! I am confused on what to do next. I subtracted the 700 by 560 and got 140 so then I divided by 700 and got 5?

**math**

What is the percent of discount on a television that originally sold for $700 and is now on sale for $560?

**Math!**

I have now noticed my error. Thank you!

**English**

Is this a complete sentence or a sentence fragment? "Applications truly welcomed."

**Math**

500 gallon sprayer that puts out 20 gallons of spray per acre. How many times will the sprayer have to be filled to spray 106.363 acres?

**Math probability**

Trevor's soccer bag holds lots of socks: 4 red, seven green, three white, and two purple. He takes two socks, what is the probability that he will get red and green socks?

**Geometry**

I could also use the formula of a sphere

**Math**

Each ticket bought is $2.25. Each ticket bought Gives one chance in the drawing. Jose Purchased 10 tickets. If there were 510 tickets Purchased in all, what is the probability that One of Jose's ticket's will be drawn first? 10/510 or1: 52 chance

**Math**

Each ticket bought is $2.25. Each ticket bought Gives one chance in the drawing. Jose Purchased 10 tickets. If there were 510 tickets Purchased in all, what is the probability that One of Jose's ticket's will be drawn first? 10/510 or1: 52 chance

**Math**

73 divided by 150 comes out to be about 49%. What am I doing wrong

**Math**

If there were 150 animals, of which 73 were rabbits and the rest are chickens.. What percentage of the animals were chicken? Is it 48%

**physical science**

How many kilocalories of heat does the operation of a 1285 W hair dryer produce each second?

**Chemistry**

A helium ballon contains 0.32g of helium. Given the molecular weight of helium is 4. How many moles of helium does it contain.

**Science**

What tool is used to capture the energy in sunlight?

**English **

Which is President Kennedy’s intent when using questions in the last paragraph of this excerpt?

**chemistry**

2NO (g) + Cl2 (g) <=> 2NOCl (g) (reversible) equilibrium constat = 1 x 10^7 @ certain temp NO = 2.8 x 10^-2 mol Cl2 = 1.4 x 10^-3 mol NOCl = 5.9 mol all mixed in a 1.4 L flask what is Qc and what direction will system go?

**chemistry**

shouldn't it be -2x?

**chemistry**

equilibrium constant = 2.180 x 10^6 @ 730 C. H2 (g) + Br (g) <=> 2HBr (g) (reversible) startin with 3.20 moles of HBr in a 21.3-L reaction vessel, calculate the concentrations of H2, Br2, and HBr at equilibrium idk how to start my ice table

**chemistry**

equilibrium constant = 55.3 @ certain temperature H2 (g) + I2 (g) <=> 2HI (g) (reversible) If you start with 0.195 M hydrogen iodide, what will the concentrations of H2, I2, and HI be at equilibrium?

**history**

All of the following were anti-modern reactions except A. fundamentalism B. Ku Klux Klan C. cultural anthropology D. arts and crafts movement E. prohibition F. None of the above would it be fundamentalism?

**Calculus**

The circle defined by the equation x^2 + y^2 = 18 has two points where the slope of its tangent line is m=1. Find those points.

**chemistry**

How many grams of Li2O must be carried on board to remove 85.0kg of water?

**Calculus: Integral**

I don't understand how to do this one integral problem that involves secant. I'm asked to find the integral of sec^4 (4x). I'm not really sure how to go about solving this problem.

**chemistry**

Assume that 0.0200 mole of a gas is collected in the lab by water displacement. If the temperature of the gas is 26.0oC and the total pressure in the gas tube is 745 mm Hg (including water vapor), what is the volume in liters of the dry gas? (Use the ideal gas law.)

**math**

The two fractions below cannot be simplified as they are, but if you switch the numerators, they can be simplified. What property allows us to do this? 2/3 x 3/8

**Math**

The ratio of the number of boys to the number of girls in Mr. Brown's class is 5:4. Which of the following can be calculated using the information given? A. The number of girls in Mr. Brown's class B. The number of boys in Mr. Brown's class C. The ratio of the numb...

**Math**

Michael has a science project due. He knew that it would take him 4 hours to complete the project. He needed to spend 50% of his time on his experiment, 40% of his time on his analysis, and 10% on putting his project together. What is the ratio of time spent putting his projec...

**Math**

The height of an elephant in a scale drawing is 4 cm. The scale in the drawing is 1 cm to 50 in. What is the actual height of the elephant. A. 200 in B. 400 in C. 53.5 in D. 25 in

**Math**

In Mrs. Julie's classroom the ratio of boys to girls is 12 to 8. If the entire elementary school has a population of 400 students, how many would you expect to be girls?

**Math**

The Look Alike Doll Company makes dolls that resemble people. Pam's mom is having a doll made to look alike Pam. Pam is 5 feet tall. The doll will be 2 1/2 feet tall. What is the ratio of the doll's height to Pam's height?

**Math**

Jason drew two circles. the diameter of the larger circle is twice the diameter of the smaller circle. What is the ratio of the circumference of the smaller circle to the circumference of the larger circle?

**Math**

The height of an elephant is a scale drawing is 4cm. The scale in the drawing is 1 cm to 50 in. What is the actual height of the elephant?

**Math**

The population of some countries has a relative growth rate of 2.75% per year. At this rate, how many years (to the nearest tenth of a year) will it take the population to double?

**US government**

over time _____ has gained power at the expense of ____.

**Math**

your class is conducting an experiment to study geometric sequences. The class forms a line. the first person takes a whole pizza,divides it in half, keeps half, and hands it to the next person. The next people in line do the same with there peices. Which portion does the seve...

**DATABASE.PLEASE!!**

yes dodo

**Math**

A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee must answer 5 of the multiple-choice questions and 2 of the open-ended problems, in how many ways can the questions and problems be chosen?

**survey math 140**

a textbook search is considering 19 books for possible adoption. the committee has decided to select 5 of the 19 for furture consideration in how many way can id do so

**physic angular momentum and torque**

Radius = 4 feet; height = 6 feet

**algebra**

The height of a ball dropped from a tall building is modeled by the equation d(t) = 16t2 where d equals the distance traveled at time t seconds and t equals the time in seconds. What does the average rate of change of d(t) from t = 2 to t = 5 represent?

**alegbra 1**

A company manfactures an alarm clock. Three weeks ago the company had 250 on hand. Two weeks from now it will have 500. Assume the company will continue to make the clocks at the same rate.

**Finance**

10. A new factory at Arcata requires an initial outlay of $3.5 million to be paid immediately. The factory will last for eight additional years, after which it can be sold for a salvage value of $2,000,000. Sales will be $800,000 during the first year of operation and will gro...

**chemistry**

278.35g Ba3n2 to mole Ba3N2

**Geometry**

concrete costs 105 per cubic yard. plato is making a rectangular concrete garage floor measuring 33 feet wide by 6 inches thick. how much will the concrete cost?

**ALGEBRA**

EVA IS JUMPING ON A TRAMPOLINE .HER HEIGHT H AT TIME T CAN BE MODELED BY THE EQUATION H=-16T^2+20T+6.WOULD EVA REACH A HEIGHT OF 14 FEET

**Chemistry**

excess magnesium is reacted with 45 grams of sulfuric acid. 9.5 liters of hydrogen gas are collected understand conditions of temperature and pressure. what is the percentage of hydrogen sulfate and of water in the acod solution?

**Maths**

Plz somebody help !!!

**Maths**

What is a shape that has a 24cm2 area and a 26cm perimeter. The sides have to be 5,4 and 3cm long!!!

**Need 8 grade math help quick please!**

Thank you!

**math**

A boat needs to travel south at a speed of 20 km/h. However a constant current of 6 km/h is flowing from the south-east. Use vectors to find: a.the equivalent speed in still water for the boat to achieve the actual speed of 20 km/h. b the direction in which the boat must head ...

**3rd grade math**

I Dont no and Im fiFt grade

**Mathematics**

Tn-1,Tn-2,Tn-3

**Mathematics**

Give the first three terms of the sequence of 1.Tn+1=Tn+n

**Science URGENT**

for second part C6H12O6 Total atoms in 1 molecule = 6 + 12 + 6 = 24 2C6H12O6 6 carbon atoms, 12 helium atoms, and 6 oxygen atoms then you have 24 atoms times the 2 at the beginning making 48 atoms

**Science URGENT**

Hey MAD 2 Hydrogen atoms + 1 oxygen atom = H2o 3H2O : 9 atoms 5H2O = 15 atoms

**Math**

Can 26x^2 be written as x*sqrt26?

**Math**

What is 7 sqrt 8 - 2 sqrt 8?

**Chemistry **

copper(1) chloride reacts with hydrogen sulfide. if 9.90 grams of copper(1) chloride and 10.2 grams of hydrogen sulfide are reacted together, what is the limiting reactant?

**Math**

If an orange is twice as many as a pear. How many pears are there?

**Math**

Fay is making 13 bows to sell. She has 36 feet of ribbon. If each bow requires 2 1/4 feet of ribbon, how much ribbon will not b used

**FINANCE**

Gamma Ltd is not expecting to pay dividends for three years, at the end of year four, a dividend of $2.45 is planned and dividends are expected to be constant forever after that. The required rate of return for Gamma Ltd equity is j4 = 12.25% pa. What is the expected price (cu...

**math**

jared bought a package of pens containing 20 pens. If 3/4 of the pens had black ink, how do you determine the number of pens with black ink?

**Physics**

f = m a ___ a = f/m c1 ___ a = 150/46 c2 ___ a = 250/46 answers are in m/s^2

**Economics and Statistics**

A stockbroker placed the following order for a customer: • 50 shares of Kaiser Aluminum preferred at $100 a share • 100 shares of GTE preferred at $27.20 a share • 20 shares of Boston Edison preferred at $12.20 a share What is the weighted arithmetic mean price ...

**Count Of Monte Cristo**

Not yet. I meant the movie

**Count Of Monte Cristo**

How does the Count of Monte Cristo set up Mondego & Villefort? How does he frame Villefort and what happens to Villefort?

**math**

I got 14%. Is this correct, Ms. Sue?

**math**

What percent of 600 is 84?

** math**

What percent of 25 is 23?

**Chemistry**

a.) How much energy is emitted in each alpha decay of plutonium-234 if 234Pu, 234.0433mu and 230U, 230.0338mu. b.) The half-life of plutonium-234 is 8.8 hrs. How much heat is released by the alpha decay of a 1 micro-gram sample of plutonium-234 in a 24-hour period? For part a,...

**Chemistry**

The main radioisotope in a banana is potassium-40, a beta emitter with an activity of 242 Bq/g. An average medium banana has about 320 mg of potassium and the natural abundance of potassium-40 is .0117%. Calculate the value of the BED in a.) Gy b.) Sv Assume 5.02 nGy/Bq

**Math 117**

nobody knows.

**Business and Economics **

The weights (in grams) of the contents of several small bottles are 8, 4, 3, 6, 7, 1 and 5. What is the sample variance? 5.81 4.33 5.67 2.22

**Math **

Try to make 24 using -,+,•,/ 1,5,4,3 & 3,12,4,1 & 10,9,7,2

**Calculus**

when t=90?

**Calculus**

A weight oscillates in a vertical motion according to the position function y(t)=-5 cos(t). Assuming t≥0, when will the acceleration if the weight be zero for the first time?

**Calculus**

An object in free fall has its distance from the ground measured by the function d(t)=-4.9t^2 +50, where d is in meters and t is in seconds. If gravity is the only acceleration affecting the object, what is gravity's constant value?

**physics**

For the purposes of this problem, there are three parts to the figure, and the center of mass of each one is shown in the drawing. These parts are: (1) the torso, neck, and head (total mass = 40.4 kg) with a center of mass located on the y axis at a point 0.403 m above the or...

**physics**

Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.78x1011 m apart. The larger of the two stars has a mass of 4.19x1030 kg, and its center is 1.75x1011 m from the system's center of mass. What is the mass of the smaller star?

**health**

The one area you can't control to reduce your chances of stroke, heart disease, or diabetes is

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