Monday

December 22, 2014

December 22, 2014

Total # Posts: 220

**Statistics**

The grades in the final exam of a random sample of 25 students produce a standard deviation, s = 9.5. a) Construct a 90% confidence interval estimate for the population variance, . b) Can we infer at 10% level of significance that the population variance is significantly ...
*November 25, 2014*

**Math**

Round to the nearest hundredths 23.456
*November 22, 2014*

**Statistics**

4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: (a) draw a rough sketch, darkening in the ...
*November 22, 2014*

**physics**

Calculate the potential energy of a 9.00 g bullet traveling 4.00 m above the ground at 50.0 m/s with respect to the ground
*November 14, 2014*

**Math **

A box manufacturer wants to produce an open box for which the volume is 2 cubic meters and the length is twice the width. What actual dimensions of he box will require the least amount of material? Work: V = 2m^3 2m^3 = (w)*(2w)*(h) Possible dimensions: length width height ...
*September 14, 2014*

**Math**

What is the amount of interest on the loan? $ b. What is the maturity value of the loan? $ c. What is the maturity date of the loan? Enter the full name of the month.
*September 2, 2014*

**algebra**

Perform the indicated operation. x/2+y/3-z/4
*April 23, 2014*

**PHI 208 Week 3 Reading Quiz**

Milton Friedman observes that if the same argument that advocates of corporate social responsibility say should be brought to corporate shareholders is instead brought before union members, the logical bankruptcy of the argument would be clearly evident because: both A and B.
*April 6, 2014*

**chemistry**

How many grams of calcium carbonate are required to prepare 50.0 grams of calcium oxide? CaCO3-> CaO + CO2
*March 11, 2014*

**Algebra, help needed**

23
*October 7, 2013*

**government**

common good
*June 24, 2013*

**government**

According to John Locke, citizens give up some personal liberty as part of their _________________________ with government
*June 24, 2013*

**government**

don't have a book. I don't have a guess this question confuses me
*June 24, 2013*

**government**

don't have any choices
*June 24, 2013*

**government**

The _________________________ created new religious systems that were not bound to the government.
*June 24, 2013*

**government**

A(n) _________________________ differs from a direct democracy in that only a small number of elected representatives actually vote on a specific issue.
*June 24, 2013*

**goverment**

America’s founders envisioned a _________________________ that was closer to the government of ancient Athens than to the political system found in America today
*June 24, 2013*

**goverment**

Forming a strong political _________________________ without forming an equally sound understanding of politics could lead to making unwise choices in the voting booth.
*June 24, 2013*

**CHEMISTRY Homework Assignment**

Hi I noticed someone else put this question up, but I am having a hard time with this one. I HAVE NO IDEA WHAT TO DO. What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)
*May 10, 2013*

**CHEMISTRY Homework**

Hey I think that we have the same professor! I am having trouble with this problem as well.
*May 10, 2013*

**trig**

A slide is attached to the side of a tree house. The height of the tree house is 6 less than double the distance from the baswe of the tree to the base of the slide. The length of the slide is 3 more than the height of the tree house. Find the length of the slide.
*May 5, 2013*

**Art Appreciation**

Compare Raphael's School of Athens with Veronese's Christ in the House of Levi. How did each work reflect the environments of Rome or Venice?
*April 22, 2013*

**Englishh**

if my quote is exactly 4 lines do i have to indent it using MLA formatting an citations
*April 11, 2013*

**Calculus**

What is the connection between improper integrals, Riemann sums, and the integral test?
*March 26, 2013*

**math/calculus**

when approximating the value of transcendental functions, why are some centers more useful than others?
*January 6, 2013*

**Chemistry**

are molar heat of vaporization and heat of vaporization the same thing?
*December 14, 2012*

**Chemistry**

are molar heat of vaporization and heat of vaporization the same thing?
*December 13, 2012*

**Chemistry**

what is the magnitude and sign of the molar heat of vaporization of butane
*December 13, 2012*

**Chemistry**

it takes 37.50 mL of 0.152 M sodium chromate to titrate 25.00 mL of silver nitrate. what is the molarity of the silver nitrate solution
*November 15, 2012*

**Writing**

What is another way I could say "home"? I am trying to use the word to describe a place where someone feels comfortable and at ease and in place but the word home sounds awkward.
*October 30, 2012*

**Calculus**

solve for x e^(2x+3) -7=0 ln(5-2x)=-3
*October 29, 2012*

**math-algebra 2**

What are the solutions of the quadratic equation? 2x2 – 16x + 32 = 0
*October 11, 2012*

**history**

during the colonial 1580-1776 which physical feature presented the greatest obstacle to colo nists who wanted to move westward
*September 26, 2012*

**math**

8 divided by 4 over 9
*August 14, 2012*

**Spanish**

True or False? Hospitals only perform surgeries.
*August 12, 2012*

**Growth and phsical development**

can anyone help me out i have an assingment and need to identify growth and physical charateristics identifed and them also in action
*August 6, 2012*

**Computers**

For each order, display the Company Name, City, and the Country for the customer who placed the order.
*May 13, 2012*

**Polynomials and quadratic application**

thank you so much, such a life saver
*April 28, 2012*

**Polynomials and quadratic application**

Suppose I want a garden with 400 square feet. Write an equation that can be used to find the values for x that will result in that area.
*April 28, 2012*

**Polynomials and quadratic application**

thank you
*April 28, 2012*

**Polynomials and quadratic application**

I want to make a rectangular garden by fencing in a area on the back of my house. Three sides of the rectangle will be fencing; the fourth side will be the side of the house. I have 60 feet of fence. What dimensions should I make the rectangle so that I have the largest ...
*April 28, 2012*

**chemistry**

It was 15.9psi so my answer will be a little different. thanks for your help!
*April 26, 2012*

**chemistry**

6.3mm
*April 26, 2012*

**chemistry**

ok so i have 1.08atm(3L)=nR(303.2k) then what do i do?
*April 26, 2012*

**chemistry**

0.82g of an unknown gass is at 30 degrees C in 3L container at a pressure of 15.9psi. What is the molecular weight of the unknown gas?
*April 26, 2012*

**chemistry**

ok thanks!
*April 26, 2012*

**chemistry**

0.71 M
*April 26, 2012*

**chemistry**

31.0mL sample of LiOH, concentration unknown, is titrated with .52 M HCl. It takes 42.9 ml of HCl to reach the endpoint. What is the concentration of the base?
*April 26, 2012*

**chemistry**

ok thanks!
*April 26, 2012*

**chemistry**

0.4905 M
*April 26, 2012*

**chemistry**

.04905 M
*April 26, 2012*

**chemistry**

N2+2H2=N2H4 What is the concentration of H2 at equalibrium when (N2)=.033 and (N2H2)= .042 M? Keq=5.29
*April 26, 2012*

**math**

Mia gave 1/3 of her 24 marbles to david. How many did david get?
*April 26, 2012*

**math**

mia gave 1/3 of her 24 marbles to david how many did david get?
*April 26, 2012*

**calculus**

use differentials to approximate the value of the squareroot of 4.3
*April 18, 2012*

**calculus**

What is caluculous
*March 19, 2012*

**Algebra 2**

Okay so I need help with basically how to find the domain, range, and how to solve if it says Find the value of f(3). Let the f function be defined by f(x) = the square root of x + 1 for -1 is less than or equal to x less than or equal to 3. And 4 - x for 3 is less than x less...
*March 18, 2012*

**Science**

What are deep currents and how do they form?
*March 1, 2012*

**math 2nd grade**

trie dividing 1 divided by 8 and then one divided by 4 :)
*February 29, 2012*

**Physical Science: PLEASE HELP!!!!!**

A wooden raft 3 m long x 2 m wide x 20 cm thick floats on a freshwater lake. A) Determine the buoyant force? B) If the raft itself has a mass of 600 kg, how many 65-kg people could it support?
*February 23, 2012*

**College Personal Finance**

Annual interest of 6.0% paid if balance exceeds $900, $12 monthly fee if account falls below minimum balance, average monthly balance $1,135, account falls below $900 during 2 months. Round the answer to the nearest cent.
*February 6, 2012*

**accounting**

where on a t account would I post completed a consulting engagement and received cash of 7800
*January 29, 2012*

**physics**

what is the force of gravity on a mass of o.5kg hanging by a string in a beaker of water
*November 30, 2011*

**factors math**

The gcf(a,b) = 495 and lcm( a,b) =31,185 Find possible values of a and b if a is divisible by 35 and b is divisible by 81.
*November 29, 2011*

**math**

The gcf(a,b) = 495 and lcm( a,b) =31,185 Find possible values of a and b if a is divisible by 35 and b is divisible by 81.
*November 29, 2011*

**math**

show that the sum of four consecutive whole numbers is divisible by 2
*November 29, 2011*

**arithmetic**

the second term of an arithmetic sequence is 15,mand the sixth term is 43. what is the 289th term?
*November 29, 2011*

**statistics**

A group of six students all have different grades in statistics. The median mark in the group is 68. If two of the six students are selected at random, what is the probability that both have marks greater than 68?
*November 7, 2011*

**earth**

Some people have proposed building a giant elevator from Earth's surface to geosynchronous orbit. The top of the elevator would then have the same orbital distance and period as any satellite in geosynchronous orbit. Suppose you were to let go of an object at the top of ...
*October 7, 2011*

**Physics**

On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.3 times as far as he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed of 40 m/s at an angle of 46° above the ...
*September 19, 2011*

**Physics**

On a spacecraft two engines fire for a time of 560 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has velocity components of ...
*September 19, 2011*

**ENGLISH**

Which sentence uses quotation marks correctly for a title?Select one of the options below as your answer:A. “Cinderella” is my niece's favorite movie of all time.B. I think I'm going to read "Moby Dick" when I finish reading my current book.C. I ...
*August 30, 2011*

**math**

x=5 y=2
*August 30, 2011*

**algebra**

16y+8z+40
*August 30, 2011*

**ENGLISH**

Identify the sentence that uses correct punctuation.Select one of the options below as your answer:A. “I am so sorry that you are not feeling well” said Mrs. Smith.B. “If we hurry, we won’t miss the bus,” urged Mom.C. Brian said “Please don’t...
*August 30, 2011*

**ENGLISH**

The phrase "She called it a day" is __________.Select one of the options below as your answer:A. a metaphorB. hyperboleC. an idiomD. personification
*August 30, 2011*

**ENGLISH**

Identify the sentence that uses a modifier in the correct form. Select one of the options below as your answer: A. My sister ran hurried down the walk to the bus stop. B. My sister ran hurriedly down the walk to the bus stop. C. We all hurried runningly down the walk to the ...
*August 30, 2011*

**Chemistry**

Okay so I'm doing doing significant figures in chem. And I was just wondering for problems like this: .000456 dm + .00524 m Do I have to actually convert stuff? And on the ones with exponents what do I do ? Ex: 3845.2 m cubed/ 25.2354 m
*August 27, 2011*

**chemistry**

A sample of gas has increased in temperature from 20° Celsius to 22° Celsius. Which of the following happens as the temperature of the gas goes up? A.The gas undergoes a phase change. B. The velocity of the gas particles decreases. C.The kinetic energy of the particles...
*July 29, 2011*

**chemistry**

Use the collision theory to explain how increasing the surface area of a solute will increase the rate of the dissolving process.
*July 29, 2011*

**us history**

What is the significance of Alexander Hamilton’s financial program? · How did Hamilton’s financial program play a role in the creation of a two-party political system?
*July 28, 2011*

**chemistry**

Explain how the addition of a solute affects the vapor pressure of the solvent.
*July 14, 2011*

**chemistry**

Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to react completely with 7.25 liters of hydrogen gas? Show all of the steps taken to solve this problem. Unbalanced equation: H2 (g) + O2 (g) yields H2 O(g)
*July 14, 2011*

**chemistry**

The boiling point of a solution will ______ and the vapor pressure will _______ with a(n)_____ in the amount of dissolved solute.
*July 14, 2011*

**US HISTORY**

WHAT ARE EVENTS THAT INFLUENCED THE SECTIONAL CRISIS THAT LED TO CIVIL WAR?
*July 11, 2011*

**US HISTORY **

Why was there tension in slavery in the 1840's
*July 11, 2011*

**us history**

was their tension over slavery in the 1840's?
*July 11, 2011*

**us history **

was the growth of democracy just a coincidence or did it contribute to the market revolution? i am trying to us this as a timeline.
*July 11, 2011*

**math**

21.65625
*June 27, 2011*

**Physics**

.54mm & 1.2mm sorry
*June 27, 2011*

**Physics**

SI units
*June 27, 2011*

**Physics**

What hanging mass will stretch a 1.9-m-long, 0.54 - diameter steel wire by 1.2 ?
*June 27, 2011*

**Chemistry**

A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and 0.200 mol of CH3COONa in 1.00 L of water. 1.00 mL of 10.0 M HCl is added to a 100 mL portion of this solution. What is the final pH of the resulting solution? Ka of CH3COOH = 1.8 x 10¯5
*June 26, 2011*

**Algebra**

If 10,000 is invested at 4.8% simple interest, how long will it take for the account balance to grow to 11,200.
*June 1, 2011*

**English-lord of the flies**

What do you think? Does girls who wear makeup sort of resemble Jack and his mask?
*May 30, 2011*

**English-lord of the flies**

Thank you Ms. Sue!
*May 30, 2011*

**English-lord of the flies**

Yes, well you see i cant think of a single thing that this book resembles in our present day world... hence why i posted the question. could you possibly give me a jump start?
*May 30, 2011*

**English-lord of the flies**

Give five present day examples of similar characteristics or situations present in the novel lord of the flies.
*May 30, 2011*

**Algebra**

The sum of two numbers is 68 and the difference is 10. What are the numbers?
*April 26, 2011*