Wednesday
December 7, 2016

# Posts by tiff

Total # Posts: 100

chemistry
0.4276-g sample of a potassium hydroxide – lithium hydroxide mixture requires 31.20 mL of 0.3315 M HCl for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture? 1.) 0.03120 L x 0.3315= 0.010343 moles HCl I'm not sure ...
April 15, 2016

Maths
Not sure if this is right but, x=1.4
April 15, 2016

Calculus
Which of the following integrals cannot be evaluated using a simple substitution? the integral of 1 divided by the quantity x squared plus 1, dx the integral of 1 divided by the quantity x squared plus 1, dx the integral of x divided by the quantity x squared plus 1, dx (MY ...
March 15, 2016

Calculus
If f(x) and g(x) are continuous on [a, b], which one of the following statements is true? ~the integral from a to b of the difference of f of x and g of x, dx equals the integral from a to b of f of x, dx minus the integral from a to b of g of x dx ~the integral from a to a of...
March 15, 2016

Chemistry
Anyone got a good explanation for this question.
May 4, 2015

physics
Figured it out. The answer is N = -122. F = ma In this case, acceleration is negative because it's in the opposite direction (being pushed to the right, but we want to know the effects on the red box which is to the left), therefore m • a = 14.5 • -8.38 = -121.5 N.
November 2, 2014

physics
In addition: To the nearest newton in problem 5 what force does the blue box exert on the red box? The first answer is a = 8.38 m/s^2 290 = (20.1 + 14.5)a Solve for a. Can't seem to figure out how to find the force on the red box.
November 2, 2014

physics
The red box has a mass of 20.1 kg and the blue box has a mass of 14.5 kg and the force is 290 N. To the nearest tenth of a m/s2 what is the acceleration of the combination? The diagram looks like this: F --> [Red Box][Blue Box] On a straight plane, not on an incline.
November 2, 2014

algebra
September 4, 2014

algebra
joe counted a total of 40 whites and yellow cars. there are 9 times white cars as yellow cars. how many white cars did joe counted
September 4, 2014

history
Tariff Protection
July 13, 2014

POL 201
Q:An independent regulatory authority, like the Federal Reserve Board. A)is subject to legislative oversight. B)operates independently of both the President and Congress. C)takes orders from the President. D)engages in partisan politics Q:A clientelist is often appointed to be...
May 20, 2014

chemistry
The boiling point of another member of this homologous series was found to be 309 K \rm K. What is the likely molecular formula for this compound?
April 28, 2014

Math (Number Theory)
the following two lines indicate another way to derive the formula for the sum of the first n integers by rearranging the terms in the sum. Fill in the details. 1+2+3+...+n=(1+n)+(2+(n-1))+(3+(n-2))+... =(1+n)+(1+n)+(1+n)+...
April 21, 2014

math
Mary hits 60% of her free throw shots in yesterdays game. If Mary takes 7 free throw shots in yesterdays game, what is: A. The probability she scores 5 of those shots? B. The probability she scores none of the shots? C. Her average number of hits, or shots that go on? D. The ...
October 28, 2013

Physics
Actually, Henry is incorrect. The acceleration is NOT equal to 0. The acceleration is F1/m thus, the equation he wrote (160 - Fs = m • a) should have m • a = F1. Final equation: Ft - uF2 = F1 160 - u(461.2) = 494.54 u = .725
September 16, 2013

Physics Lab
Collision derivation problem. A car is released from rest on a frictionless inclined plane. Assume h/L is approximately equal to y/x. equations. If the car has a mass of 0.2 kg, the ratio of height to width of the ramp is 11/110, the initial displacement is 2.25 m, and the ...
July 20, 2013

economics
quantity total cost what's the marginal cost? 0 8 2 9 4 10 6 11 8 13 10 19 12 27 14 37
March 15, 2013

ALG2! WORD PROBLEM!very important!!
The first part is ax is less than or equal to 1200. You substitute a as 41.49. you will get 28.92263195950831525668835640636. The maximum number is 28 because if u purchase 29, you will go over the budget.
November 30, 2012

math
Its been awhile but here you go: (a)53320 31000*.06=1860 1860*12 (12 is 3 quarter per year for 4 years)=22320 31000+22320=53320 (b)34720 31000*.03= 930 930*4=3720 31000+3720=34720
November 23, 2012

I thought B.
November 23, 2012

calculating & reporting healthcare statistics
an employee currently earning $10.85 per hour has been awarded a 3.5 percent merit raise. What will the employee's hourly salary be with this increase? October 7, 2012 Math A catcher's and a pitcher's uniform numbers are consecutive integers whose product is 756. If the catcher's was the smaller number, determine the uniform number of each player. September 28, 2012 Math The length of the luff is four times longer than the length of the foot of the sail. Find the length of the foot and the length of the luff. September 28, 2012 Math Pool tables are rectangular, and their length is twice the width. Find the dimensions of a pool table if it occupies 162 ft2 of floor space September 28, 2012 english research plan, what does it mean - birth control why do you think this research question is appropriate for a research paper birth control September 18, 2012 pre-algebra if the scale is 3 in. = 50 mi. what is the actual distance if the line segment was 6 in. February 21, 2012 History Which of the following words best describes the climate of New Zealand..a) tropical b) temperate c)arid d)artic February 16, 2012 physics A 16kg stone falls 40m. Find the stone's kinetic energy just before it strikes the ground. January 22, 2012 chemistry What is the concentration of a standard solution? - It was prepare to 250mL, it contained 9.7563g (O.lM) of (NH4) and 3mL of sulphuric acid. September 20, 2011 chemistry 101 3.45 mol x 5 mol O/1 mol P2O5= 17.3 mol of Oxygen July 8, 2011 physics Suppose that you have a circle with a radius of 4.02 ± 0.39 m, what is the calculated uncertainty in the area? February 2, 2011 physics Suppose you have a circle with a radius of 6.43 ± 0.09 m, what is the average area of the circle? February 2, 2011 science Why doesn't the sand from california beaches' result in froth and bubbles when you pour vinegar on it? January 17, 2011 math If she made the last free throw, then her probability of making the next one is 0.9. On the other hand, If she missed the last free throw, then her probability of making the next one is 0.5. Find the long-run free-throw shooting probabilities for this player: December 6, 2010 math Please and this one 234,000,000 it scientific notation November 24, 2010 math Hello I need help with scientific notation please 0.00000586 November 24, 2010 Calculus A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the semicircle. What are the dimensions of the rectangle with maximum area? November 7, 2010 math the system of linear equations below has a unique solution for all but one value of a: 6 x−12 y=−6 58 x+a y=−58 What is this exceptional value for a? October 26, 2010 math Assume that the business makes a profit with probability 0.3 in the first year. For each year thereafter, the business makes a profit with probability 0.7 if it made a profit in the previous year, and with probability 0.2 if it did not make a profit in the previous year. What ... October 4, 2010 statistics Assume that each bag contains 6 balls. Bag a contains 3 red and 3 white, while bag b contains 2 red, 2 white, and 2 blue. You randomly select one ball from bag a, note the color, and place the ball in bag b. You then select a ball from bag b at random and make note of its ... October 4, 2010 math -2(5+2)-3(3-4)-5 October 1, 2010 statistics Assume that your sample space is S = {O1, O2, O3, O4, O5, O6 } with associated weights (probabilities) w1 = 0.15, w2 = 0.25, w3 = 0.10, w4 = 0.20, w5 = 0.15, and w6 = 0.15. Determine the probability of the following events: {O3 }∩{O5 }: September 29, 2010 math Assume that your sample space is S = {O1, O2, O3, O4, O5, O6 } with associated weights (probabilities) w1 = 0.15, w2 = 0.25, w3 = 0.10, w4 = 0.20, w5 = 0.15, and w6 = 0.15. Determine the probability of the following events: {O3 }∩{O5 }: September 29, 2010 5th grade Salt is sodium and chloride if the there was only chloride it would be different. September 27, 2010 5th grade Salt is sodium and chloride September 27, 2010 math THe perimeter of a rectangle is 166 inches. The length exceeds the width by 23 inches. Find the lenght and the width July 30, 2010 Pharmacy The instruction take medication with plenty of water is an example of June 7, 2010 HCR 230 Write a 350- to 700-word response that familiarizes you with private payer plans and CDHP account types May 2, 2010 physics 7.2, 16, and 29 February 9, 2010 medical coding and billing i just don't know how to start the letter January 2, 2010 medical coding and billing i just strated school and one of the assignments is to file an appeal for a doctor stating that he wants more money then the insurance company paid him and i have no idea on how to even start this letter can some one help me please? January 2, 2010 english In emphasizing the importance of individual thinking and basing one's beliefs on one's own experiences, Sojourner shows she has much in common with November 11, 2009 finance Today, Mark invested$5,000 into an account that guarantees 7.50% p.a., compounded monthly and Madonna invested $5,000 into account guaranteeing 8.125% p.a., compounded quarterly. How long will it take (in years) for the value of Madonna's investment to be three times as ... October 25, 2009 finance Today, Mark invested$5,000 into an account that guarantees 7.50% p.a., compounded monthly and Madonna invested $5,000 into account guaranteeing 8.125% p.a., compounded quarterly. How long will it take (in years) for the value of Madonna's investment to be three times as ... October 23, 2009 finance You have decided to buy a car that costs$34,100. The dealer offers you a 5-year loan with monthly payments of $695 per month. What is the annual nominal interest rate on the loan? October 23, 2009 finance help You have decided to buy a car that costs$34,100. The dealer offers you a 5-year loan with monthly payments of $695 per month. What is the annual nominal interest rate on the loan? October 22, 2009 accounting help IN 2008, Variman, Incorportated had Gross Accounts receivable of$2,366,420 and management estimated the Allowance for Doubtful accounts to be $243,520. Compute the ratio of Allowance of Doubtful accounts to Net Accounts receivable for Variman, Inc. for 2008 (that is, compute ... September 3, 2009 integration sqrt2 times e^t times t^(1/2) dt bounded between 0 and 1. i tried integration by parts.. but it keeps repeating.. please help. thank you! August 27, 2009 Math Actually Reiny was right, it is 56 I just typed it in and it's correct August 23, 2009 Algebra It's been so long since I've donw combinations, and now I have a question about them in my algebra homework packet. Question is....Marcie has a collection of 9 DVDS. She will choose 4 of them to take in the car to watch during a long trip. How many combinations of 3 ... June 12, 2009 World history how did human life change when the ice age ended? May 21, 2009 Chem Could someone explain to me how to prepare (a) zinc chloride by an acid-base reaction and (b) by a gas formation reaction. If the starting materials available are ZnCO3, HCL, CL2, HNO3, NaCL, Zn(NO3)2, and Zn. Thanks so much for any info. December 2, 2008 medical coding and billing i just strated school and one of the assignments is to file an appeal for a doctor stating that he wants more money then the insurance company paid him and i have no idea on how to even start this letter can some one help me please? November 15, 2008 Bio describe the general body form of a fungus when growing and at time of sexual reproduction... October 15, 2008 math What do all these letters B,D,E,F,H,K,L,M,N,P,R have in common that none of the other in the english alphabet has? October 4, 2008 science What isthe missing word?The Heart has some ----- tissue in it. September 19, 2008 math A stamp collection consists of 3, 8, and 15 cent stamps. The number of 8 cent stamps is one less than triple the number of 3 cent stamps. The number of 15 cent stamps is six less than the number of 8 cent stamps. The total value of all the stamps is$2.47. Find the number of 8...
September 7, 2008

college
The annual rainfall in California’s north valley averages twenty-three inches. So the rainfall next year will be twenty-three inches
September 2, 2008

Chemistry
Hi GK, For the first step, isn't (1/10)(0.0020) = 0.00020 M? Also, I understand your very clear explanation to the last step: [SCN-] = 0.0010 -C I understand the minus C part, but how did you get 0.0010? Thank you!
August 8, 2008

legal and ethical issues
select a current or proposed law that impacts the delivery of human services what reliable resources are availiable to learn about the implications of this law? What is the purpose or rationale of the law? How will the law effect da-t-day operations within human service ...
June 2, 2008

Microeconomics
Indicate how you think each of the following would shift demand in the indicated market: a.Incomes of buyers in the market for Adirondack vacations increase. b.Buyers in the market for pizza read a study linking hamburgers consumptions to heart disease. c.Buyers in the market ...
October 21, 2007

how to you find the samllest division when reading a scale
September 10, 2007

science
do you know how to find the smallest division on a scale?
September 10, 2007

math
The amount of sales tax charged is proportional to the value of the item bought. If the tax on a $110.00 item is$8.50, what is the tax on a $150.00 item? It will be (150/110) x$8.50 150/110*8.50=11.59 \$11.59 is your answer
June 22, 2007

history
What was Wilson’s slogan for entering World War I? Why was his slogan invalid at the time? What happened later in Russia, which provided how invalid was his slogan? http://www.google.com/search?hl=en&lr=&as_qdr=all&q=ww+i+%22Wilson%E2%80%99s+slogan+%22+Make+the+world+safe...
May 11, 2007

history
9. What three events proved that Theodore Roosevelt spoke softly but carried a big stick? Check this site. http://en.wikipedia.org/wiki/Big_stick_diplomacy
May 11, 2007

religion
i need to write an essay on mass as a sacrafice. i need help on sacrifice in natural religion, the Old Testament beckround to sacrafice, and the relationship of the mass to sacrafice and calvary PLEASE HELP! Since this is not my area of expertise, I searched Google under the ...
May 7, 2007

religion
2. What four actions besides stealing are forbidden by the seventh commandment? See my response below.
May 7, 2007

Religion
1. What three actions we are commanded to do by the seventh commandment? from http://www.vatican.va/archive/catechism/p3s2c2a7.htm "THE SEVENTH COMMANDMENT You shall not steal. The seventh commandment forbids unjustly taking or keeping the goods of one's neighbor and ...
May 7, 2007

Visual Basic
Notes in a program which explains what the program is doing are called ______ Comments?
May 3, 2007

Visual Basic
a routine that puts a series of strings or numbers in order is called a ________
May 3, 2007

Visual Basic
a routine that accepts one or more arguments and returns a single result is called a _______
May 3, 2007

computer
a routine that puts a series of strings or numbers in order is called a ________
May 3, 2007

computer
a routine that accepts one or more arguments and returns a single result is called a _______
May 3, 2007

computer
Notes in a program which explains what the program is doing are called ______
May 3, 2007

Visual Basic
If you wanted your program to respond to an event every 5 seconds, you would use the ________control. timer having problems getting the name from my txtName box to show up on my lblmessage box. I am working on a simple program that one types there name at the top, click on a ...
May 3, 2007

earth science
what is the most common sedimentary rock? Since this is not my area of expertise, I searched Google under the key words "sedimentary rock common" to get these possible sources: http://www.cartage.org.lb/en/themes/Sciences/Earthscience/Geology/RocksandMinerals/...
April 4, 2007

earth science
what class of minerals contains the element oxygen bonded to a metallic element http://en.wikipedia.org/wiki/Iron_oxide
April 4, 2007

earth science
24. emormous masses of ____ rock all over the world, such as the Columbia Plateau in the northwestern U.S., give evidence of some huge catastrophic action. granite mountainous sedimentary volcanic volcanic right? Yup.... absolutely
April 4, 2007

earth science
22. an illustration of the fact that a sudden and great _____ struck the earth is the millions fo mammoths and other large animals frozen instantly and preserved, whole and undamaged. catastrophe cold front ice age permafrost ice age right This also makes good sense.
April 4, 2007

earth science
21. Billions of fossils of plants, fishes, and land animals, many almost perfectly preserved, could not have been buried by natural _______ observable in the world today. DEATHS DISEASES EVELOUTION PROCESSES processes right? That makes good sense to me.
April 4, 2007

AP U.S. History 1920's immigration
i love stephanie forth!!
February 21, 2007

AP U.S. History 1920's immigration
this is whatever i mean come. immagrants; its the same legal or illegal...all they want is to be free. plus mexican guys are hawt
February 21, 2007

College Essay
I edited it from your suggestions is there anything else I could change or add? The smell of exhaust from multiple cars combined with dirt and dust fluttering in the air is my lasting impression of Canton, China. The vivid image frequently reminds me of where my origins came ...
November 26, 2006

College Essay
Are there any grammar errors or any other errors I should fix? And is there anything I should edit? Also are my paragraphs organized correctly? The smell of exhaust combined with dirt and dust fluttering in the air from multiple cars is my first encounter with Canton, China. ...
November 26, 2006

Physics
On a mass of 100 kg, a force of 120 N acts right and at an angle of 30 degrees to the horizontal. If the coefficient of sliding friction is .1 what is the acceleration of the mass? 100N* cos30 -(100sin30+mg)(.1)= m*acceleration [86.6025- [(-50 + (100)(-9.8)](.1)]/100 [86.6025...
August 24, 2006

Physics
On a mass of 100 kg, a force of 120 N acts right and at an angle of 30 degrees to the horizontal. If the coefficient of sliding friction is .1 what is the acceleration of the mass? 100N* cos30 -(100sin30+mg)(.1)= m*acceleration does "m*acceleration mean the acceleration ...
August 23, 2006

Physics
On a mass of 100 kg, a force of 120 N acts right and at an angle of 30 degrees to the horizontal. If the coefficient of sliding friction is .1 what is the acceleration of the mass? Net force= mass*acceleration Horizontal force -frictionalforce = mass*acceleration 100N* cos30...
August 21, 2006

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