Posts by Lori
Total # Posts: 497
why can't a model of the solar system be proportionate in distance b/w the planets and size of the planets? I think that a scale model that is proportionate could include both
January 19, 2017
If a soccer team won 60% of the games in which its players scored 5 or more goals, what is the probability of choosing a game in in which the team scored 0-4 goals and won the game? The season so far is they have won 3 games scoring 0-4 goals, won 3 games scoring 5 or more ...
December 8, 2016
In a laboratory, the following reaction is performed by combining 358 g of H2O and a sufficient amount of CaC2. The percent yield for this reaction is 94.5%. Calculate the actual yield of acetylene (C2H2) in grams from this reaction. CaC2 + 2H2O C2H2 + Ca(OH)2
May 1, 2016
If the solubility of gas in water is 5.0g/L when the pressure of the gas about the water is 2.0 atm, what is the pressure of the gas above the water when the solubility of the gas is 1.0 g/L?
March 14, 2016
Can you please check if my answers are correct? 1.)The pupil had not(brang, brought) the homework. Answer: The pupil had not brought the homework. 2.) Has the choir ever(sung,sang) that tune? Answer: Has the choir ever sung that tune? 3.) The seamstress should have (broughten...
March 12, 2016
Introduction to Computer Applications
I am doing and assignment that requires a short story or narrative poem of my choice to summarize and such. any suggestions or recommendations on short stories?
February 12, 2016
Sara bought 2 boards of wood one board is 18 inches the other is 30 inches she wants to cut the wood into longest equal parts with no wood left over does Sara have enough wood for 10 equal size peices
February 3, 2016
Cross out prepositional phrases. Underline the subject once and the verb/verb phrase twice. Identify adv. 1.) The discussion between Lori and her mother was regarding their weekend plans. Subject: discussion Verb: was regarding Phrase: between Lori and her mother 2.) One house...
February 1, 2016
A football field has a width of times the sum of x and meters and a length of the difference between 2x and 5meters.write an expression to represent the area and perimeter of the field.
January 26, 2016
Reimbursement per screen 66.05 Equip cost/mo 1450.00 technologist cost per Mammography $15.60 tech aid/per $3.10 Variable cost per mamo $15.00 Equip. maintanance/mo. per machine $916.66 1) what is the monthly patient volume needed per month to cover fixed and variable costs? 2...
November 3, 2015
The biggest service delivery protest in most communities is over the company Uber. The taxi drivers do not like Uber because it is taking away business from the taxi drivers. If a person needs a ride somewhere, they no longer have to call a taxi company. Instead, they can get ...
August 19, 2015
A grade six class is having a fundraiser. The class boys have three bags of apples. Each bag has 24 apples. The total cost of the three bags of apples is $12.24. The class sells the apples for 0.75 each. How much will the class gain per apple?
May 7, 2015
A wheelchair ramp to a public building forms a 15 degree angle with ground and reaches a height of 2.3 metres above the ground. A) fill in these values on the diagram to the right. B) Label the length of the ramp, X . Then find its length ( to one decimal place)
April 11, 2015
Hi! Can someone help me with this? Thanks! Directions: Solve this equation by doing it twice; one time using the substitution method and one time using the graphing method. x 2y = 0 3x y^2 = 0
March 2, 2015
Hi! Can someone help me with this? Thanks! Directions: Solve this equation by doing it twice; one time using the substitution method and one time using the graphing method. x + 2y = 1 5x 4y = -23
March 1, 2015
in a particular redox reaction, MnO2 is oxidized to MnO4 and fe3+ is reduced to fe2+. Complete and balance the equation for this reaction in acidic solution. Phases are optional.
November 21, 2014
The New York Times study of homes reported average house size in 2001 to be 2,428 square feet, compared with an average of 2,150 square feet in 1987. Suppose a study of homes over the years recorded the year from 1987 to the present, as well as the size of the house in square ...
November 4, 2014
I really need help on this. I tried doing it on my own, but, I got stuck. Thanks! (a) List any approximate x-intercepts values. (b) Set y = 0 and solve the resulting equation; y=x^3-4x^2-25x+100.
October 10, 2014
1.Bill and Warren are thinking about issuing 11 percent coupon bonds that will mature in 15 years. Market interest rates are 13 percent. What could they sell each of the bonds for?
October 7, 2014
Mary is driving on a straight road. Suddenly a deer jumps out in front of her. Mary turns her car to the left to avoid the deer. Which best describes what happens to mary's head position if she is wearing her seatbelt? A) mary's head moves to the left b marys head ...
August 27, 2014
A capital project has an initial investment of $100,000 and cash flows in years 1-6 of $25,000, $10,000, $50,000, $10,000, $10,000, and $60,000, respectively. Given a 15 percent cost of capital, (a) compute the net present value. . (b) compute the internal rate of...
April 14, 2014
Could someone please clarify. I recently sent this question to the forum and thought I had it figured out. Now another student has told me to do this: 35.7 ppm x 250ml = 8.925 x 10-3 g 8.925 x 10-3 g/4.272g=2.089 x 10-3 = 2089 x 10-6 = 2089ppm Please help I do not know what is...
March 5, 2014
Suppose a 4.272 g soil sample undergoes an extraction with 50 ml of extracting solvent to remove the lead. This 50 ml was then diluted to 250 ml and tested by atomic absorption technique. The concentration of lead in this diluted extract was found to be 35.7 ppm. What is the ...
March 5, 2014
Algebra 2 Help!
1.) Simplify the expression. [sqrt3 + 2i][sqrt3 - 2i] 2.) Solve using the square root property. (y - 4)2 = -18 3.) Rewrite the the function in vertex form. You may use completing the square or an alternate method. f(x) = 5x2 - 10x + 3 4.) Use the Discriminant b2 - 4ac to ...
February 28, 2014
Fundamentals of Finance
I've posted 2 different questions on the above mentioned and no one has helped with the questions, or if it was than how to I go about finding them. HELP! I'm so lost here!
January 15, 2014
Fundamentals of finance
"Genatron wants to estimate what will happen to its income before interest and taxes if its net sales change from the 2012 level of $1,500,000. Refer to Genatrons 2012 income statement below, where the income before interest and taxes is $247,000 (EBT of $190,000 ...
January 12, 2014
Fundamentals of finance
"Estimate the weights (wi) for assets in the three portfolios given the following information about the portfolio holdings: " Price Number of securities Market value Portfolio weights Percentages to one decimal place a. Stock A $25 200 500 0.22522523 22.50% Stock B...
January 12, 2014
Consider a football team for whom the numbers on the active players jerseys are 29, 41, 50, 58, 79, , 10 (listed in alphabetical order of the players names). Does it make sense to calculate the mean of those numbers? Why or why not? 2. The Fair Isaac ...
January 11, 2014
Going off of the question I asked: How many miles, m, will each of the cars have on them when the numbers of weeks, w, is the same? Use the equation from Problem 2 Part A (the one above). Show how you found your answer. Thank you!!!!!
November 16, 2013
A series of standard solutions of benzene in toluene solvent is to be prepared for an internal standard procedure with ethylbenzene serving as the internal standard. Tell how you would prepare the solutions, including the milliliters of benzene concentrations are to be 0.5%, 1...
November 10, 2013
A light spring having a force constant of 130N/m is used to pull a 7.50kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.50m/s^2? Part A: By how much does the spring stretch if it pulls on the sled horizontally? X=0.144m Part B: By how much does ...
September 26, 2013
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3 +2HCl yields CaCl2 +H2O +CO2 How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate are combined with 13.0 g of hydrochloric acid...
September 22, 2013
A professor wants to supplement her pension with investment interest. If she invests $26,000 at 7% interest, how much more would she have to invest at 9% to achieve a goal of $4,160 per year in supplemental income?
September 6, 2013
19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a sale of stock to the ...
May 2, 2013