Saturday

October 1, 2016
Total # Posts: 87

**Math Question**

Evaluate the following expression: 1 + 4 x 7 + (5 -2)² ÷ (7 - 4)

*March 8, 2016*

**Math Algebra PLEASE EXPLAIN**

Cell Tell is expanding to a new area of town. The store's budget allows $2,500 per month to rent the needed 600 square foot kiosk. What is the maximum annual rate per square foot that Cell Tell can pay?

*February 29, 2016*

**MATH HELP PLEASE Explain**

Onondaga Electronics operates on a net-profit rate of 20% on its printer cables. If the markup is $8.95 and the overhead is $4.31, find the net profit and the selling price

*February 25, 2016*

**MATH HELP PLEASE Explain**

The Kitchen Kompany operates on a 145% markup rate based on the cost. The markup on the store's new line of cabinets is $300 per cabinet. Find the cost of one cabinet and its selling price.

*February 25, 2016*

**MATH HELP PLEASE Explain**

Brownies and More sell all types of cookies and pastries. On Tuesdays, they markdown all brownies 75% to a sale price of $1.50 a dozen. Find the regular selling price and the markdown of a dozen brownies.

*February 25, 2016*

**Science Please Help**

Human activities, like burning fossil fuels and deforestation, have greatly contributed to global warming. In this assignment, you will go on a trip around the world to explore the effects of climate change. Choose one destination that is represented by a flag. Write a ...

*February 7, 2016*

**algebra**

A(n) = 5 + (n-1)(-3)

*September 15, 2015*

**Social Studies**

I got a 50

*September 15, 2015*

**English check**

Dont listen to little dark one. It is A, ariana is right

*February 19, 2015*

**Business Math**

0.1 x 12,300 = 1230. Thank you, I had a brain fart there.

*November 5, 2014*

**Business Math**

I'm wondering if I got this question right. A car salesman receives a commission of 10% of the selling price of a car. Find the commission the salesperson earns for selling a car for $12,300. The answer I got was $12,3000.

*November 5, 2014*

**Math **

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D

*June 17, 2014*

**Math PLZ help me**

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D

*June 17, 2014*

**CALCULUS II**

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D

*June 17, 2014*

**math**

How do I solve: 6x+4y>=80 6x+4y<=170

*April 4, 2013*

**Math URGENT!**

2. 9X-2=34+3X 4.x/3-15=12+x 6.11+4x=7+5x 8.-7+x=-8-x 10.0.45x+25=40+0.25x

*November 12, 2012*

**College Finance**

Warp Tense Ltd. has the following assets: Current Assets (Temporary): $2,000,000 Current Assets (Permanent): $500,000 Capital Assets: $4,500,000 Total Assets: $7,000,000 Its operating profit (EBIT) is expected to be $0.45 million. Its tax rate is 30 percent. Shares are valued...

*November 3, 2012*

**ashworth**

I as well go to the same school for home schooling, maybe we should all connect... 'Bout to make a school topic on my gaming forums... Ya'll should subscribe, I'm working on intro part 2 section 4... 666(dot)thegenuinewriter(dot)com then click on forums

*July 8, 2012*

**Psychology**

Creative thinking tends to be: Divergent Convergent Functional fixedness Dependent on algorithms

*May 21, 2012*

**Spelling**

What are the unusual spelling patterns for wonder and gasoline?

*May 14, 2012*

**Life orientation**

flood

*April 17, 2012*

**Physics**

A 0.495-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface. The spring is stretched 33.3 cm from equilibrium, and then the mass is released from rest. Find the speed of the mass when it has moved 4.79 cm? Find the maximum...

*February 22, 2012*

**physics**

A box of textbooks of mass 24.8 rests on a loading ramp that makes an angle with the horizontal. The coefficient of kinetic friction is 0.25 and the coefficient of static friction is 0.35. At this angle, how fast will the box be moving after it has slid a distance 4.9 along ...

*September 27, 2011*

**Chemistry**

Question: What mass of water, in grams, would have to be decomposed to produce 17.6 L of molecular oxygen at STP? Work: n=PV/RT x=(1 atm)(17.6 L)/(0.0821)(273 k) x = 1.27348295454546 1.27348295454546 x 2 = 2.54696590909092 Grams= Moles x 18.0 Grams = 2.54696590909092 x 18.0 ...

*July 13, 2011*

**Chemistry**

If 17.14 grams of nitric acid are reacted with a large amount of aluminum metal, what volume of of hydrogen gas would be produced at STP? What would be the balanced equation for this problem?

*July 13, 2011*

**Chemistry**

What mass of water, in grams, would have to be decomposed to produce 13.3 L of molecular oxygen at STP? How do I go about doing this problem?

*July 13, 2011*

**Chemistry**

If 16.01 grams of sulfuric acid are reacted with a large amount of aluminum metal, what volume of hydrogen gas would be produced at STP? What is the balanced equation?

*July 13, 2011*

**Chemistry**

At STP, 461 mL of a gas have a mass of 1.88 g. What is the molar mass of the gas?

*July 13, 2011*

**Chemistry**

Thank you Dr. Bob!

*July 13, 2011*

**Chemistry**

Question: What is the maximum number of liters of HNO3(g) that can be made from 14.88 L of H2O(g) and 10.66 L of NO2(g) at STP? 3 NO2(g) + H2O(g) ==> 2 HNO3(g) + NO(g) I have no idea how to do this. Please help if you can.

*July 13, 2011*

**Chemistry**

I realize my mistake now.

*July 13, 2011*

**Chemistry**

Oops, the 101 is 10^1, Sorry.

*July 13, 2011*

**Chemistry**

Question: A sample of Freon-12 (CF2Cl2) occupies 2.261 x 101 L at 337 K and 2.917 x 102 kPa. Find its volume (in L) at standard temperature and pressure (STP). Equation: p1v1/t1=p2v2/t2 My Work: (2.917 x 102 kPa)(2.261x101 L)/337K = (101.3 kpa)( x )/273 k My Answer: 543.4 L Is...

*July 13, 2011*

**Chemistry**

I posted this question earlier, but I believe it was a bit confusing in the way I typed it. Given the following two step reaction: 4 P + 5 O2 -> P4O10 P4O10 + 6 H2O -> 4H3PO4 If you have 8.28 g of P, 15.65 g of O2, and 19.95 g of H2O, how many grams of H3PO4 can be ...

*July 1, 2011*

**Chemistry**

If 18.80 grams of hydrochloric acid are reacted with a large amount of aluminum metal, what volume of hydrogen gas would be produced at STP? (Hint: start by writing a balanced equation for the reaction.) 3HCl + Al -> 3H + AlCl3 18.80g moles= grams/mw 18.80/109.5 0....

*July 1, 2011*

**Chemistry**

Thank you SO much. Not only did you help me get the correct answer, but you helped increase my understanding of these problems. Cheers to you.

*June 30, 2011*

**Chemistry**

How many milliliters of 0.0850 M Na3PO4(aq) will react with 22.00 mL of 0.0800 M MgCl2(aq)? 3 MgCl2(aq) + 2 Na3PO4(aq) ==> Mg3(PO4)2(s) + 6 NaCl(aq) V x M = V x M (22.00mL)(0.0800M) = (0.0850M)(x) Is this the correct set-up? Does it have 4 sigfigs, or am I wrong?

*June 30, 2011*

**Chemistry**

4 P 8.28g m=g/mw x=8.28/124.0 x=0.067 + 502 15.65g x=15.65g/160 x= 0.0978 = P4O10

*June 30, 2011*

**Chemistry**

4 P + 5 O2 -> P4O10 8.28g 15.65g moles=g/mw x=15.65g/160.0 x=8.28/124.0 x= 0.0978 x=0.067 Which one would be limited? Please help if possible. Also, are my sigfigs correct?

*June 30, 2011*

**Chemistry**

Given the following two step reaction: 4 P + 5 O2 -> P4O10 P4O10 + 6 H2O -> 4H3PO4 If you have 8.28 g of P, 15.65 g of O2, and 19.95 g of H2O, how many grams of H3PO4 can be produced?

*June 30, 2011*

**Trig/Pre-Calc**

$2500 is invested in an account at interest rate r, compounded continuously. Find the time required for the amount to (a) double and (b) triple. r=0.085 I know you use the formula A=Pe^rt and you would start by setting it up as follows: A=(2500)e^(0.085)(t) I'm not sure ...

*May 17, 2011*

**Biochem**

What concentration of competitive inhibitor is required to yield 75% inhibition at a substrate concentration of 1.5x10-3 if Km=2.9x10-4 and Ki=2x10-5?

*April 17, 2011*

**Finance**

You have found the following stock quote for RJW Enterprises, Inc., in the financial pages of today's newspaper. The closing price for this stock that appeared in yesterday's paper was $????. If the company currently has 17 million shares of stock outstanding, the net ...

*March 3, 2011*

**physics**

Find required water pressure to supply water at h = 35.0 ft and P = 40.0 Lb/in^2. ----------------------------------- Working equation: P = hDw where P = pressure, h = height, Dw = weight density (Dw for water is 62.4 Lb/ft^2) ----------------------------------- P at bottom = ...

*October 30, 2010*

**History**

Prove that one Jew was gassed by Nazi Germany. For any gassing, use a Nazi document to show each of the followng: the location of the gassing, the duration of the gassing, the date of the gassing, the hour of the gassing, the preparations for the gassing, the physician present...

*August 8, 2010*

**psychology**

wite a 7 page research paper in apa format on post traumatic stress disorder in combat personnel

*May 16, 2010*

**math**

Peform each indicated operation by using LCD and simplify the result. Can you please show me the steps on how you got the answer because I don't understand how to these problems. Thank you. y+2 over y^2+2y+4 + 1 over y-2 z-3 over z^2+z-6 + 2z+1 over z-2

*April 28, 2010*

**math f2 grade**

all

*April 13, 2010*

**spanish**

Your question is translated as where did you graduate from high school? Your sentence should say something like: Yo gradue (with an accent on the e) de *insert school name*

*March 21, 2010*

**Business Law**

What are some good web sites to visit to learn about government agencies?

*February 11, 2010*

**4th grade math**

find the value of n. n / by 30 = 20

*January 25, 2010*

**Biology(everyone answer i need alot of opinions)**

I work in a hospital so I know this. I say E because it you have strep throat u are usually prescribed amoxicillin. If you quit taking it before the prescription runs out then you run an extremely high risk of getting the ailness ten times worse. So keep taking it until ur ...

*December 5, 2009*

**MATH**

Write an equivalent fraction for 6/8

*November 9, 2009*

**MATH**

Write an equivalent fraction for 12/36 =

*November 9, 2009*

**MATH**

Rename each fraction as a mixed number. 17/4.

*November 7, 2009*

**social studies**

What aspects of life in the seventeenth-century England would you find the most different from life today? Select three or four concrete examples of life in the seventeenth century that seem unusual to you, and explain why you find the unusual.

*October 13, 2009*

**MATH**

FOLLOW THE ORDER OF OPERATIONS TO FIND THE VALUE OF EACH EXPRESSION. 45 DIVIDED BY 9 MULTIPLE 3 =

*October 6, 2009*

**medical terminology**

As an O.R. tech in a hospital, abbreviations have screwed me over. There are some abbreviations that once meant something but theyve changed to something else. Reducing errors by writing out words will help better understand rather than guessing how many units of a certain ...

*September 18, 2009*

**5th grade**

how do you know the difference between complete predicates and complete subjects

*September 2, 2009*

**U S History**

How did human history in North America, from 1500 B.C. to 1500 A.D., differ from the events of Asia, Eurasia, and Europe on humanity during the same period?

*June 21, 2009*

**accounting**

$50,000 x .31524 = $15,762.00 +$5,000 x 8.55948 = $42,797.40 You would pay a total of $58,559.40 Pro tip: Use the tables in book to find .31524 (which is 8% @ 15 periods for present value of 1) and 8.55948 (which is 8% @ 15 periods for present value of an ordinary annuity of 1)

*February 23, 2009*

**Quick Spanish**

1. How is Felipe? 2. Are the boys good friends? Why? 3. How are friends in your class?

*February 15, 2009*

**trig**

yes

*June 2, 2008*

**trig**

Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help sin (-pi/12)

*June 2, 2008*

**algebra**

Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help sin (-pi/12)

*June 2, 2008*

**trig**

The equation f(x) = 3x^3 + 10x^2 - 16x - 32 has a root at x = -4 a) Find the depressed equation using synthetic division and the root given. Factor out any constants that may appear. b) Factor the depressed equation (which is now a quadratic) using any method EXCEPT synthetic ...

*June 2, 2008*

**algebra**

The equation f(x) = 3x^3 + 10x^2 - 16x - 32 has a root at x = -4 a) Find the depressed equation using synthetic division and the root given. Factor out any constants that may appear. b) Factor the depressed equation (which is now a quadratic) using any method EXCEPT synthetic ...

*June 2, 2008*

**algebra**

Rewrite the inequality x/-3 < 4 in terms of x

*June 2, 2008*

**Science**

Environomentalist as the five basic cause of eniveronmental problems that we face have indentified the following. I) Rapid population growth II) Unsustainable resource use III) Poverty IV) Not including the environmental cost of economic goods and services in their market ...

*May 16, 2008*

**Science**

Is the wealth gap good or bad for (a) you, (b) a poor person, and the environment? Assuming that you believe that the wealth gap is bad, what three things should be done to narrow this gap? What obligation should a wealthy person, corporation, or a country have to (a) reduce ...

*May 16, 2008*

**chemistry**

Thank you! Umm...Whats a quant book? A book read by extraterrestrials??:P

*April 6, 2008*

**chemistry**

HI ==> H^+ + I^- HI is a strong acid and ionizes 100%. If (HI) = 0.06 M, then (H^+) must be 0.06 M. pH = -log(H^+). pOH = 14 - pH. pOH = -log(OH^-) Post your work if you get stuck. pH = -log(o.o6 M) = 1.22 pOH = 14 - pH = 14 - 1.22 = 12.78 pOH = -log(OH-) What is OH-?

*April 5, 2008*

**chemistry**

Strychnine, C21H22N2)2(aq) is a weak base but a powerful poison. Calculate the pH of a 0.001 mol/L solution of strychnine. The Kb of strychnine is 1.0 x 10^-6 DrBob222, I am planning on obtaining a pHD in about nine years:P Can you give me some advice on how to be that 1% of ...

*April 5, 2008*

**chemistry**

What is the pH, pOH and [OH-] of 0.06 mol/L HI(aq)?

*April 5, 2008*

**chemistry**

What mass in grams of potassium hydroxide is cntained in 500 mL of solution that has a pH of 11.5?

*April 5, 2008*

**Algebra**

Does any know if I am correct? One person said yes, but someone else said no. There was not a reason posted why I was wrong.

*April 3, 2008*

**Algebra**

Does any one know if I am correct? One person said yes, but some one said no. There was not a reason why or where I was wrong.

*April 3, 2008*

**Algebra**

I am not sure if I did this right, it is the theorem on bounds to establish integral bounds for roots of equation. 6x^3-7x^2+7x+9=0 1 6 -7 7 9 0 6 -7 7 9 6 -1 6 0 0 0 6 -1 6 15 6 -7 7 9 -1 6 -7 7 9 -6 13 20 6 -13 20 29 answer is -1<x<1

*April 3, 2008*

**Algebra**

My problem is compute and simplify the difference quotient f(x+h)-f(x)/h h is not = 0 f(x)=7x-9 answer is 7

*March 28, 2008*

**Algebra HELP!**

If they are suppose to be exponents, that would make more sense. But my problem was written exactly as I typed it. So the answers they are looking for are the values of x, y, and f(x)? Thank-you for your help.

*March 28, 2008*

**Algebra HELP!**

I cannot find an example and am confused about what to do with this problem. Can someone tell me what they want? Do they want me to graph the function and determine x&f? I am just not sure how to get my answer. My problem is: Compare the graph of the given quadratic function f...

*March 28, 2008*

**Algebra HELP!**

I cannot find an example and am confused about what to do with this problem. Can someone tell me what they want? Do they want me to graph the function and determine x&f? I am just not sure what why my answer is suppose to be. Compare the graph of the given quadratic function f...

*March 27, 2008*

**Algebra**

expression in lowest terms 5(y-1)/(y-1)(y-4) =5/y-4

*March 13, 2008*

**Maths**

What is an alternative Axis in a polygram?

*March 2, 2008*

**oratorical piece**

i need a oratorical piece

*January 28, 2008*

**English**

I need to write a short toungue twister. With a word describing me. and then my name followed my adjectives. using the letter B in as many words as posiible. Have any ideans.... im kind . hard working resposible lovingcaring . etc etc. Have any ideas for me.. ?? __________ ...

*February 13, 2007*

**teachers**

Why don't most teachers at public schools let us think for ourselves? it's insulting. I am in English 3 and my teacher does all our work for us. What should we do? Here is my advice. Either bite your lip, and remain quiet, or discuss it privately with the teacher. Be ...

*September 6, 2006*

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