# 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

**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

**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?

**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...

**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?

**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.

**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?

**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.

**Math**

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

**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...

**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

**MATH**

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

**math**

What is log2.135?

**MAth**

If x = log28, what is x?

**Algebra 2**

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

**Math**

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

**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

**math**

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

**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

**math**

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

**Math**

35000

**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

**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 ...

**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 ...

**math**

oh got it sorry I pasted the wrong question

**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

**business**

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

**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...

**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

**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=

**Algebra**

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

**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?

**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

**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

**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.

**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.

**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 ...

**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 ...

**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 ...

**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

**Rome - Religion**

thanks

**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 ...

**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.

**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 ...

**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 ...

**Criminal Justice**

Right but are attorney and council the same thing?

**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 ...

**algebra**

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

**math**

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

**math**

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

**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...

**physics**

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

**8th grade Science**

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