# Posts by BC

Total # Posts: 53

**Algebra**

hey i know the answer now i wrote left to right instead of right to left and botched the answer

*October 9, 2015*

**Algebra**

(x+3)/(x+8)-(x-8)/(x-3) I worked this out and got -55 Ans. But was marked wrong because the Ans. is 55 why and how does this end with no minus(-)sign please show working

*October 9, 2015*

**algebra 2**

The time it takes for climbers to reach the highest point of a mountain is normally distributed with a standard deviation of 0.75 hours. If a sample of 35 people is drawn randomly from the population, what would be the standard error of the mean of the sample?

*May 21, 2014*

**gen chem 1**

You carefully weigh out 20.00g of \rm CaCO_3 powder and add it to 81.00g of \rm HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 92.80g . The relevant equation is \rm CaCO_3{\it (s)}+2HCl{\it (aq...

*May 22, 2013*

**Physics**

A box 5 m long, 2 m wide, and 2 m high applies 12 Pa of pressure to the table that it is resting on. How much force does the box exert?

*September 26, 2012*

**physics**

A 4.9 kg bag of groceries is in equilibrium on an incline of angle è = 26°. Find the magnitude of the normal force on the bag.

*January 3, 2012*

**algebra**

A car is traveling 60 mph. A truck leaves 7 minutes later and is traveling 70 mph. How long before truck will pass car?

*August 26, 2011*

**Algebra 2**

Suppose the experimental probability is 1/3 that a carton of eggs contains at least one broken egg. Use the simulation of 20 trials to find the experimental probability that 3 cartons selected at random contain only unbroken eggs.

*November 2, 2010*

**Math**

y = 937/224, but there are quite a few steps to getting there

*November 1, 2010*

**Ms. Sue**

any specific examples of why? that is what I cannot think of, I know how like errors on a resume, application, etc... I know the employer may feel that one is incompetent or sloppy. But I cannot think of the specific why examples? Shows that a person does not pay attentiuon to...

*November 1, 2010*

**General Question**

How might a potential employer evaluate your writing if you did not use proper verb tenses? Why? General question, I ned others perspective on to help answer this question. thanks

*November 1, 2010*

**MATH**

x = -y+4 y = -x+4

*November 1, 2010*

**math**

What is log2.135?

*October 25, 2010*

**MAth**

If x = log28, what is x?

*October 25, 2010*

**Algebra 2**

Complete the system for no possible solutions: x+y+z = 7 y+z = ? y+z=?

*October 14, 2010*

**Math**

Express in the form, a + bi: (-11 + 4i) + (6 + 8i) Answer a. -5 + 12i b. 5 - 12i c. -3 + 10i d. -7 + 14i

*September 12, 2010*

**Math**

Express the following in a + bi form: i / (2 + i) Answer a. 2 + i b. (-1/5) - (2/5)i c. 2 - i d. (1/5) + (2/5)i

*September 12, 2010*

**math**

Simplify: (1 + i)(1 - i) Answer a. -2i b. 2 c. 2i d.-2

*September 12, 2010*

**Math 117**

tc=total cost a. 2500+(3x)=tc b. (2500+(3x))/x or tc/x c. 10= $253 per animal 100= $28 per animal 1000= $5.50 per animal d. As the amount af animals increase the price decreases and the average price will never fall below $3.00 e. (2500+(3x))/x=5 x=1250

*September 12, 2010*

**math**

(x+5)=3 x=3-5 x=-2

*September 12, 2010*

**Math**

35000

*September 12, 2010*

**physics**

Vector has a magnitude of 8.80 units and makes an angle of 43.0° counter-clockwise from the positive x-axis. Vector has a magnitude of 8.00 units and is directed along the negative x-axis

*September 6, 2010*

**Algebra**

Suppose the estimated quadratic model Yt = 500 + 20 t - t2 is the best-fitting trend of sales of XYZ Inc. using data for the past twenty years (t = 1, 2,.., 20). Which statement is incorrect? A. The trend was higher in year 10 than in year 20. B. Latest year sales are no ...

*August 30, 2010*

**Math - Pre-Algebra**

44) A financial institution wishes to estimate the mean balances owed by its credit card customers. The population standard deviation is estimated to be $300. If a 98 percent confidence interval is used and an interval of ±$75 is desired, how many cardholders should be ...

*August 30, 2010*

**math**

oh got it sorry I pasted the wrong question

*August 30, 2010*

**math**

Twelve randomly-chosen students were asked how many times they had missed class during a certain semester, with this result: 2, 1, 5, 1, 1, 3, 4, 3, 1, 1, 5, 18. For this sample, the median is _____. A. 2.5 B. 3 C. 3.5 D. 2 need help please

*August 30, 2010*

**business**

20)b and 21)is b , 18 I think is D and 19 C? but not sure

*August 30, 2010*

**business**

18) A rational decision maker __________. A. ignores the likely effects of government policies when he or she makes choices B. ignores marginal changes and focuses instead on “the big picture” C. takes an action only if the marginal benefit of that action exceeds the...

*August 30, 2010*

**Business accounting question**

The standards and rules that are recognized as a general guide for financial reporting are called __________. A. generally accepted accounting principles B. operating guidelines C. generally accepted accounting standards D. standards of financial reporting

*August 30, 2010*

**algebra**

Solve for P so P=? 1.)q=25-p P= I think it is 25+Q ? but am not sure 2.)Q=12-3P P= this one I get -q-12/3 but that's not aN OPTION AND i DON'T KNOW IF IT IS RIGHT OR HOW TO WRITE IT And #3 I have no clue on ?? 3.) 12Q=32-4P P=

*August 29, 2010*

**Algebra**

so it is negative then? -(1/5) Thank You

*August 29, 2010*

**Algebra**

Thank You, I thought that was but not 100% sure because I get backwards on the positive and negatives, Do you know how I find out the slope of the line or would graph it then?

*August 29, 2010*

**Algebra**

Q=50-5P. Solve the equation for P Choose the right one P=50-Q P=50+Q P=10-5Q P=10-(1/5)Q P=50-5Q

*August 29, 2010*

**Math - Pre-Algebra**

I see, I got it now, I think I was trying to over think it, it was realtivly easy they just threw in a bunch of etra words. Thanks MS. SUE

*August 29, 2010*

**Math - Pre-Algebra**

A set of building blocks of various shapes and colors. If 30% of the blocks are cubes, and 40% of the cube blocks are red the then _______? what % of the blocks are red cubes.

*August 29, 2010*

**Health Information**

It's A. physician services for sure, those on medicare and medicaid have a limited number of privuders but can be seen at any of b,c,d with full cost paid.

*August 9, 2010*

**Need HELP ASAP - PLEASE ` economics**

Suppose the economy has been producing its potential, but it is now experiencing a recession. Which of the following is a discretionary fiscal policy that would bring the economy closer to its potential output? Check all that apply. 1) A tax cut 2) A tax increase 3) The sale ...

*July 7, 2010*

**Economics - Please Help**

Suppose the economy has been producing its potential, but it is now experiencing a recession. Which of the following is a discretionary fiscal policy that would bring the economy closer to its potential output? Check all that apply. 1) A tax cut 2) A tax increase 3) The sale ...

*July 6, 2010*

**economics**

An increase in the value of the U.S. dollar relative to foreign currencies would lead to A) an increase in U.S. exports and a decrease in U.S. imports B) a decrease in U.S. exports and an increase in U.S. imports C) an increase in both U.S. imports and U.S. exports D) a ...

*June 26, 2010*

**economics**

We can conclude that there has been inflation since the base year if the GDP price index in the current year is A) positive B) equal to zero C) less than 100 D) greater than 100 E) negative

*June 26, 2010*

**Rome - Religion**

thanks

*June 20, 2010*

**Rome - Religion**

Does anyone know when and or how Romans converted to Christianity, I know it was years ago,I do know they consumed Greece and the Greek religion around 500 BC renaming most of the greek gods to suit their own, but I do not know when Christianity became widespread and how ...

*June 20, 2010*

**Scientology**

Does anyone know anything or have an opinion on Scientology (religion) I have chosen this as my final topic it is 2500 words and I only have 1500 I have been to the sites, I have done the research, but I have yet to ask people what they think or know of Scientology as a religion.

*June 19, 2010*

**Business Negotiations**

yeah I kind of figured like negotiating a pay raise or salary, but I have combed the book several times. hmmmm,so, maybe I am overlooking something. I know position is one of them for sure, knowledge or expertise may be another, but I can't find five specific for the life ...

*June 19, 2010*

**Business Negotiations**

What are the five types of power? I don't know what the five types are and everytime zi search there is something different per, doctorol, attorney, etc... this is 5 types of power in business or negotiations. Based on your experience with a negotiation, how does having ...

*June 19, 2010*

**Criminal Justice**

Right but are attorney and council the same thing?

*June 18, 2010*

**Criminal Justice**

write a paper comparing and contrasting the role of the defense counsel with that of the prosecutor. Do you think that the defense council is the same as a defense attorney, I just think that this homework question is kind of vague without a lot of detail so I was thinking ...

*June 18, 2010*

**algebra**

It is c none for sure I have tried it two different ways

*June 18, 2010*

**math**

this is your answered when completely factored for 100% sure (3x+4y) (2x+3y)

*June 18, 2010*

**math**

I don't know if I understand your question completely but by solving this problem it is equal to 219E+50/50

*June 18, 2010*

**COM 220**

You should use your schools library use main data base articles serach, they are some of the best and academically acceptable resources there are books, articles, journals, etc...

*June 18, 2010*

**physics**

List four effects that can be observed that demonstrate light travels in straight lines. Does anybody know the answer??

*February 4, 2009*

**8th grade Science**

The density of salt(sodium chloride) is 2.16g/mL. What is the volume of 216g of this solid?

*September 18, 2008*

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