# Posts by Lori

Total # Posts: 497

**economics**

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*

**math**

writing algebraic expressions: 1. there were 3 times more sugar cookies baked than chocolate chip cookies 2. the kids ate 10 fewer cookies than the number of pies they made to sell 3. kino & sandra made 12 more pounds of cookie dough than tommy

*April 11, 2013*

**Justice**

D) b and c

*April 10, 2013*

**math**

I am sorry i cant find a way to add a picture of the diagram

*April 1, 2013*

**math**

mr.periwinkle owns a ranch.he wants to add an area in the shape of an equilateral triangle to one of his rectangular fields.if the length of the rectangular field is 3x feet and its area is (9x^2-6x)square feet,write an equation for the amount of fencing needed to make the new...

*April 1, 2013*

**calculus optimization problem**

A farmer has 460 feet of fencing with which to enclose a rectangular grazing pen next to a barn. The farmer will use the barn as one side of the pen, and will use the fencing for the other three sides. find the dimension of the pen with the maximum area?

*March 30, 2013*

**calculus**

find the interval(s) where the following functions are increasing and decreasing. f(x)= x/4 + 4/x

*March 29, 2013*

**calculus**

suppose the quantity demanded per week of a certain dress is related to the unit price p by the demand equation p=sqrt800-x. write the function that describes the revenue function? To maximize revenue how many dresses should be made and sold each week?

*March 29, 2013*

**statistics**

Suppose that the heights of female adults in the US are normally distributed with a mean (µ) of 65.4 inches and a standard deviation (σ) of 2.8 inches. Let X denote the height of a randomly chosen adult female. Find the probability that X is between 66 and 70 inches:

*March 15, 2013*

**Computers**

Select the first step in the Informative Processing cycle. storage output input processing

*March 11, 2013*

**Business English**

Which of the following statements is essential about how the standard pattern for informative and posiive messgaes should be applied? Use all five of the elements of the basic organizational pattern present each element in a separate paragraph of its own Present the ...

*March 11, 2013*

**math**

when rolling a die, do you think everyone will have the same results

*March 2, 2013*

**Algebra**

T o convert from X degrees centigrade to y degrees fahrenheit the function is f(x) 9/5x +32 find the inverse function f of negative 1. what does the inverse function represent? graph Help me!

*February 27, 2013*

**science**

Why do manufacturing industries have more problems controlling pollution then other kinds of businesses have?

*February 26, 2013*

**College Physics PLEASE HELP**

A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is the spring ...

*February 23, 2013*

**College Physics PLEASE HELP**

A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equilibrium point and released. Determine a). the spring constant, k, b). the maximum velocity of the mass, c. ) the maximum acceleration of the mass, d...

*February 23, 2013*

**Physics**

A femur is a bone in the leg whose minimum cross sectional area is about 4.0 x 10^-4 m^2. A compressional force in excess of 6.8 x 10^4 N will fracture this bone. A.) Find the maximum stress that this bone can withstand and B.) What is the strain that exists under a maximum ...

*February 23, 2013*

**Physics**

A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is the spring ...

*February 23, 2013*

**Physics**

A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equilibrium point and released. Determine a). the spring constant, k, b). the maximum velocity of the mass, c. ) the maximum acceleration of the mass, d...

*February 23, 2013*

**algebra**

electricity costs 7.57 a month plus 8.77 per kilo watt hour for the first 400 kWhr and 6.574 per kWhr for all useage over 400 in a month. what is the cost for 300 kWhr? 2638 What is the cost of 700? 7.57+8.77 times 400 and 6.574 times 300? 5487.77 I think. I need to write a ...

*February 23, 2013*

**Chemistry**

Hydrogen peroxide solution, H2O2(aq), is available with a concentration of 1.667mol/L. When diluted to a concentration of 0.25mol/L, the solution is used as a disinfectant. What volume of water should be added to 100 mL of the concentrated hydrogen peroxide solution to prepare...

*February 21, 2013*

**Chemistry**

A laboratory stockroom has a stock solution of 90%(m/v) sulfuric acid,H2SO4(aq). If a technician dilutes 50ml of the stock solution to a final volume of 300ml, what will be the new mass/volume percent concentration?(HINT: the dilution formula can be used for concentration ...

*February 21, 2013*

**Canadian Law**

thxxxx:)ur cool!

*February 20, 2013*

**Canadian Law**

Can you find a canadian case where the defence of mental disorder is used in late 2012 ti early 2013? I searched soooooooooooooooooooooooooo much I couldn't find it anywhere on the internet.. Please help me thanks in advance:)

*February 20, 2013*

**Chemistry**

Which of the following mixtures of KCl in water is a saturated solution and which is an unsaturated solution; 1)100g of KCl in 100mL of H2O at 40°C 2)50g of KCl in 100mL of H2O at 70°C 3) 120g of KCl in 100mL of H2O at 60°C My data is: Temperature82°C 58°C ...

*February 19, 2013*

**Chemistry**

Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a solubility curve for ...

*February 18, 2013*

**Chemistry**

oh one more thing on the website what is the black line of on the solubility graph curve??How would I draw mine...I understand the blue one its just the black one...

*February 18, 2013*

**Chemistry**

Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a solubility curve for ...

*February 18, 2013*

**albebra**

a cubic millimeter of the blood contains 22 to the 3rd power of white blood cells and 22 to the 5th power of red blood cells What is the ratio of whiteblood cells to red blood cells?

*February 18, 2013*

**Education**

B was exactly the same as A I think the test where my teacher got this from had a typo

*February 18, 2013*

**Education**

Bennett’s Developmental Model of Intercultural Sensitivity (DMIS) provides a continuum from A) individual to social development. B) individual to social development. C) insensitive to sensitive development. D) None of the answers are correct. I believe the answer is A, is...

*February 18, 2013*

**Solubility/English**

actually you know what I think I should be satisfied with howmuch you help so if you don't have time its ok I appreciate your time and help thankyou very much!

*February 17, 2013*

**Solubility/English**

thanks alotbut I hoped you would do some more so i know how to put chemistry stuff in these

*February 17, 2013*

**Solubility/English**

Ok so I have this procedure to rewrite in past tense passive voice please help me out here I have alot ofthings to do with this lab...your help isgreatly appreciated. Thankyou! 1) Set up a hot-water both by placing th 250/400mL beaker, about two-thirds full of water, on the ...

*February 17, 2013*

**Education/Technology**

What software features are important in selecting classroom management software, based on the classroom academic software evaluation rubric? A) The list includes grade level, documentation, cost, help features, and ease of installation. B) The list includes ease of updates, ...

*February 14, 2013*

**Education/Technology**

Productivity software that allows the student to create professional-looking pages with text, graphics, digital pictures, stylized headlines, and professionally prepared design elements is called: A) Desktop publishing software. B) Spreadsheet software. C) Graphics software. D...

*February 14, 2013*

**Education/Technology**

The type of software that uses fields, records, and files to organize and display data is A) classroom management software. B) electronic spreadsheet software. C) database management software. D) word processing software. I think this is C, to me it makes the most sense. Is ...

*February 14, 2013*

**Education/Technology**

Syllabi, class outlines, and discipline reports are practical applications of A) systems procedures. B) spreadsheet functions. C) database functions. D) word processing packages. I answer is C, it sounds where all three of these would be, is this correct?

*February 14, 2013*

**Education/Technology**

To get instant feedback for assessment, such as physical education fitness, a music lab activity, or reading competency, students have been shown how to use A) scanners or punch cards. B) handheld computers or PDAs. C) desktop or laptop computers. D) webcams or digital cameras...

*February 14, 2013*

**Education/Technology**

We already have D correct? So my answer should be A

*February 14, 2013*

**Education/Technology**

We anticipate that the next technology revolution will be A) virtual reality. B) wireless computers. C) voice input technology. D) 3-D images. I think the answer is C, is this correct?

*February 14, 2013*

**Education**

Is concept mapping a type of word processing software that helps with students with special needs?

*February 14, 2013*

**math**

a car travels at an average speed of 100 km/hr. how many km will the car travel in 2 hours, 15 min?

*February 13, 2013*

**Education/Technology**

Removable media are useful for a classroom teacher because they A) are read only. B) cannot be erased accidentally. C) have the greatest capacity of any storage device. D) are portable. I believe the answer is A, is this correct?

*February 10, 2013*

**calculus**

use implicit differentiation to find an equation of the tangent line to the curve at the given point. 9x^2+xy+9y^2=19, (1,1) (ellipse)

*February 8, 2013*

**world history**

"our world" by macmillan/mcgraw-hill

*January 31, 2013*

**world history**

what page can i find "Hoe Ana on in our world by macmillan/mcgraw-hill

*January 31, 2013*

**Chemistry**

One more question please. Do I need to convert to joules or can it be kept in cal/g? Thanks in advance

*January 24, 2013*

**Chemistry**

So is the first part of the equation because it is in ice form and the second part because it is the change of temperature after it becomes water? And thank you for the answer.

*January 24, 2013*

**Chemistry**

I need to solve latent heat. It gives me the number of ice cubes and the mass in grams (7550 grams). It wants to know how many calories would burn turning the ice into body temperature water (if body temp is 37 degrees celsius.) It gives Lm of H2O=1,44 kcal.mol and cwater=1.0 ...

*January 24, 2013*

**Chemistry**

Thank you for the post. Sorry I accidentally clicked twice and it wouldn't let me delete extra post.

*January 24, 2013*

**Chemistry**

I need to solve latent heat. It gives me the number of ice cubes and the mass in grams (7550 grams). It wants to know how many calories would burn turning the ice into body temperature water (if body temp is 37 degrees celsius.) It gives Lm of H2O=1,44 kcal.mol and cwater=1.0 ...

*January 24, 2013*

**math**

the length of a rectangle is 100 inches more than the width. if the perimeter of the rectangle is 1320 inches, find the dimensions

*January 21, 2013*

**math**

nate cut a pie into 7 equal pieces. he gave one piece to his dad and three times as much to his brother Chris. what fraction of the pie was left?

*January 16, 2013*

**psychology 220**

A) is an acceptable and culturally sanctioned response in his particular culture.

*December 9, 2012*

**math**

my ten digit is 1 less then the sum of 4 + 3 my ones digit is 2 more than my tens digit what number am i?

*November 5, 2012*

**math**

my ones digit is 2 less then eight my ones digit is 4 more then my tens digit what number am i?

*November 5, 2012*

**math**

my tens digit is double my ones digit both of my digits add up to six what number am I?

*November 5, 2012*

**singapore math**

My 3rd grade son get this math problem. It states that John thinks of a 3-digit number. What is his number? Use the clues below to find John's number. Every digit is different. The sum of all thedigits is 19. The difference between the hundreds digit and the ones digit is ...

*November 4, 2012*

**singapore moth**

Place the following digits in the boxes so that the sum of the digits in each straight line is the same. This is like a crossword 3 boxes across and 3 boxes down then 3 boxes across and 3 boxes down using digits 1,2,3,4,5,6,7,8,9. please help with answer.

*November 4, 2012*

**singapore math**

Using these numbers to fiqure the problem. (120,30,90,60,50,40,160,80) The sum of two numbers is 190. What would the answer be? And the sum of their digits is 10.

*November 4, 2012*

**math**

Evaluate: 4.84 x 39 + 61 x 4.84

*October 24, 2012*

**english**

they spent a year in france is an example of how fitzgerald

*October 22, 2012*

**math**

a disk has an area of 250 square inches.what is theradius of the disk?

*October 22, 2012*

**calculus**

An airplane is cruising at 340 km/h at an altitude of 4000 m. If the plane passes directly over an observer on the ground, how fast is the distance from the plane to the observer changing when it is 3000 m away from the point directly above the observer?

*October 16, 2012*

**Algebra**

A grocer mixes 5 lb of egg noodles costing $ .80/lb with 2 lb of spinach noodles costing $1.50/lb. What will the cost per pound of the mixture be?

*October 8, 2012*

**Algebra**

Susan drove for 2 hours at 85 km/hr and then for 3 hours more at 95 km/hr. What was her average speed for the entire trip?

*October 8, 2012*

**Algebra**

If 800ml of a juice drink is 15% grape juice, how much should be added to make a drink that is 20% grape juice?

*October 8, 2012*

**science**

please tell me if you agree with the following: Which Brand of popcorn hs the least amount of unpooped kernels after 3 minutes. Brand 1 has 1 Brand 2 has 15 Brand 3 has 16 Brand 4 has 5 Brand 5 has 25 the answer is Brand 1 BUT is the: independent variable the different brands ...

*October 5, 2012*

**Chemistry**

15.0 moles of gas are in a 6.00L tank at 298.15K. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L^2*atm/mol^2 and b=0.0430 L/mol. I found the idea gas pressure to be 61.2 atm by...

*September 13, 2012*

**social studies**

What is an example of a nonrenewable resource?

*September 4, 2012*

**Physics**

An object with mass 3.7 is attached to a spring with spring stiffness constant 270 and is executing simple harmonic motion. When the object is 2.5×10−2 from its equilibrium position, it is moving with a speed of 0.45 . what is the amplitude of the motion?

*August 30, 2012*

**Ethics**

THe gm of a software company is in the process of constructing a new facility in a country. THe gm has a manager of native origin acting as liaison between the company and government officials. THe new facility requires some permits and licenses. Government officials have ...

*August 25, 2012*

**math**

how do i solve 6.3*10^5=9*10^4*t

*August 11, 2012*

**algebra**

If a rocket traveled at 9*10^4 miles per hour . How long would it take to reach the moon from the planet.The moon is 6.3*10^5 miles from the planet it orbits.

*August 11, 2012*

**Probability and Stats**

A graduate class consists of six students. What is the probability that exactly three of them are born either March, June or November?

*August 8, 2012*

**math**

Okay, I got: v+6-c and c=c-6 for 120=(v-c)*20 AND: c=12-v and v=6/5-c for 120=(v+c)*10 Now what do I do?

*August 1, 2012*

**math**

A tugboat goes upstream 120 miles in 20 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat without the current and the speed of the current.

*August 1, 2012*

**Mat/116**

In 2000,in country A, the average family net worth was $340,000,and there were about 9.4*10^7 families. Calculate the total family net worth in Country A in 2000.

*August 1, 2012*

**Math**

The perimeter of a rectangle equals the sum of the length of its four sides.If the width of the rectangle if 7 inches and its perimeter is 48 inches, what is the length of the rectangle?

*August 1, 2012*

**Math**

f(a)=t, f(b)=s, f(c)=r, f(d)=t Write the function as a set of ordered pairs. Give the domain and range of F.

*August 1, 2012*

**Math**

Thank you!

*August 1, 2012*

**Math**

So then it is .095?

*August 1, 2012*

**Math**

I have to round the .0947 to the nearest thousandth so it would be .09?

*August 1, 2012*

**Math**

Yes, I want the .0947 so that I could do the linear equation. Since the linear equation is A=10-.947(95)which means A = 1.0035?

*August 1, 2012*

**Math**

A certain mountain has an elevation of 19,583 feet. In 1907, the glacier on this peak covered 10 acres.By 2002, this glacier had melted to only 1 acre. (a) Assume this glacier melted at a constant rate each year. Find this yearly rate. (b)Use your answer from part (a)to write ...

*August 1, 2012*

**Mat/116**

An investor invested $3,400 in two mutual funds.One fund earned a 6%profit while the other earned a 3% profit. If the investor's total profit was $144,how much was invested in each mutual fund?

*July 21, 2012*

**Early Childhood Literacy**

Children with many experiences with stories: A-can accurately sound out words. B-tend to know stories have predicitable segments and features C-can read simple words as was or am by late preschool years. D-realize words are separated in sentences and that sentences end in ...

*July 4, 2012*

**Grammar**

Identify the tenses (past, present, mixed): 1. Synthes self-retaining anterior cervical retractors were then placed behind the longus colli muscles. PAST TENSE ________________________________________ 2. There was a small rent in the middle left posterior longitudinal ligament...

*June 21, 2012*

**Grammar**

Specify if sentences are complete, fragments or run-on: 1) The surgical team recommended that surgery be performed as soon as possible, the patient, however, wanted more time to think about it. SENTENCE FRAGMENT 2) Postoperative plan is for the patient to mobilize as tolerated...

*June 21, 2012*

**Grammar**

Choose the correct answer I put my answers in CAPS: 1) Neither his physician nor the floor nurses HAVE been in to see him yet this morning. 2) On sponge and instrument count, it was noted that one of the sponges WAS missing. 3 The costs of his research WERE paid by the ...

*June 21, 2012*

**Math**

Need to make a monthly amortization schedule. Borrowing 16000 over 4 years at 3.5%. Do I need to calculate for 48 months in order to do this project correctly? I do all the calcs for 48 months and I still end up with approx a payment left over?

*June 15, 2012*

**Math**

491.72

*May 31, 2012*

**math 117**

perform the indicated operations and simplify z-4/z-6 - z+1/z+6 + z-30/z^2-36

*May 19, 2012*

**geometry**

TD=6 The centroid divides each median into segments whose lengths are at the ratio 2:1 DB is 1/3 of TB

*May 15, 2012*

**writing**

what is wrong with this pargraph Since every person has only one opportunity to live each hour of his life, the time must be spent wisely. He should spend it thoughtfully. He should care what he does with his time. He should use good judgment. He should be intelligent in his ...

*May 15, 2012*

**science**

Are there enough resources in the world for 8 or 10 billion people to live decent, secure, happy lives?

*April 26, 2012*

**Math**

A jar contains 6 red marbles and 10 blur marbles all of equal size. if Dominic were to randomly select 1 marble without replacement and then select another marble from the jar, what would be the probability of selecting 2 red marbles from the jar.

*April 8, 2012*