Wednesday

March 4, 2015

March 4, 2015

Total # Posts: 1,937

**Algebra**

The cost, in millions of dollars, to remove x % of pollution in a lake modeled by What is the cost to remove 75% of the pollutant? 6000/¨€(200-2(.75)@$30.23 million) What is the cost to remove 90 % of the pollutant? 6000/¨€(200-2(.90)@$30.27 million) What is...
*March 8, 2009*

**Algebra**

I have an assignment due tonight and I believe I have solved it all correctly until I come to part d of the question. "For what value is this equation undefined?" How do I determine this? The Environment Environmental and wildlife preservation ensures future ...
*March 8, 2009*

**cultural diversity**

Complete the following matrix by identifying 7 to 10 leaders or legislative events from both the Civil Rights and Black Power movements. The first leader is provided as a model.
*February 28, 2009*

**College Level Probability**

Four different written driving tests are administered by the Motor Vehicle Department. One of these four tests is selected at random for each applicant for a driver's license. If a group of 5 applicants (consisting of 2 women and 3 men) apply for a license, what is the ...
*February 23, 2009*

**math again**

How does "How many gallons of a 12% indicator solution must be mixed with a 20% indicator solution to get 10 gal of a 14% solution?" turn into ".12x + .2(10+ -1x) = .14(10)"?? Please, I need to understand how it works! Thank you.
*February 22, 2009*

**math**

Thank you so much, I am very grateful.
*February 22, 2009*

**math**

How many gallons of a 12% indicator solution must be mixed with a 20% indicator solution to get 10 gal of a 14% solution?
*February 22, 2009*

**History**

Where can I find a copy of the Declaration of Independence?
*February 20, 2009*

**History- sue**

why do you think he meant all white men?
*February 20, 2009*

**History**

How should the phrase, "All men are created equal" be understood today, and why? What do you think Thomas Jefferson meant when he wrote these words in the Declaration of Independence in 1776, and why?
*February 20, 2009*

**history**

why, after 1765, did the American colonists increasingly find British imperial rule unacceptable? What had changed -- and why?
*February 19, 2009*

**Calc help**

find the area of the region enclosed by y=e^2x, y=e^5x, and x=1. i am having trouble seeing how this region looks like and having problems with how to start the problem in general. Much help is appreciated.
*February 19, 2009*

**Humanities**

i have to find the number of hajj pilgrims from a country (besides america)annually. right now, im finding the number of hajj pilgrims from Indonesia in the year 1999-2004 and i cant find any good websites on it....any info or links that is related to the number of pilgrims ...
*February 18, 2009*

**factoring**

factor this problem w^2 + w - 12 is my answer right? (w-2)(w+2)
*February 16, 2009*

**chem**

Make sure your equation is [b +-(b^2 - 4ac)^(1/2)]/2a
*February 15, 2009*

**Pre-calculus**

1 D. 2 C. 3 A.
*February 8, 2009*

**Algebra**

-7x+-3
*February 6, 2009*

**Math**

Maximum: 57 Minimum: 50 Median: 54 Mode: 56 Give 12 sets of numbers using the above senarios?? Please Help!!
*February 3, 2009*

**statistics**

how do i prove that the angle between a tangent and a radius is 90 degrees?
*February 3, 2009*

**To James -- AED 200**

Thank you for your suggestion. I ended up finding a game on the internet that I was able to incorporate into my project and wrote my paper about it. Thank you for your help.
*February 1, 2009*

**To James -- AED 200**

I am sorry I have never used this before. I was just thinking if I could get help with some brainstorm type ideas I could look into a technology and devise something I could learn in the classroom. I was thinking about English language learners and maybe some kind of ...
*February 1, 2009*

**Chemistry**

Please do it i dont have all the materials and i need to do it today. PLEASE!!
*February 1, 2009*

**Geography**

Explain why the importance of water quality should be a concern for every South Africa?
*January 30, 2009*

**Geography**

Grade12 geography data handling answers for 2015
*January 30, 2009*

**CHEM URGENT**

Infrared, ultraviolet, and visible radiation are all part of the electromagnetic spectrum. Arrange the three types of radiation in order of increasing energy.
*January 17, 2009*

**Geometry**

This problem can not be answered without the diagram. Sorry.
*January 12, 2009*

**English**

Where can I find an example of an argumentative essay on the Internet?
*January 11, 2009*

**Nutrition**

A pair of nutrients ( one mineral and one vitamin) that works together in the body.
*January 9, 2009*

**Math**

How can I write this as an algebraic expression: twice as old as Max's age a, less three years.
*January 8, 2009*

**algebra**

What is the slope-intercept form of an equation for the line that is parallel to 5x-3y=1 and passes through (0,-4)?
*January 5, 2009*

**space**

choose five elements of the universe and tell why they are amazing and wonderous
*December 16, 2008*

**8th grade math**

50 liters in 4 minutes
*December 15, 2008*

**French**

How do you say, "I've been friends with him since I was two?" in french? I know it's pretty simple, but I can't seem to remember... >.<
*December 15, 2008*

**Math**

What is the probability of obtaining at least one tail when a coin is flipped six times?
*December 12, 2008*

**advanced functions HELP!!!**

the function S(d)=93logd+65 relates the speed of the wind, S, in mile per hour, near the centre of a tornado to the distance that the tornado travels, d, in miles. a)Calculate the avg. rate of change for the speed of the wind at the centre of a tornado from mile 10 to mile 100...
*December 10, 2008*

**aadvanced functions HELP!**

nope i don't, the school makes it manditory to take advanced functions before calculus
*December 10, 2008*

**aadvanced functions HELP!**

the population of a town is decreasing at a rate of 1.8% per year. The current population of the own in 12000. a)write and equation that models the population of the town b)how long will it take for the population to decline to one quarter of its current population? c)...
*December 10, 2008*

**advanced functions HELP!!!**

(rate 5+ rate 8) / (15-8) ? t is measured in hours
*December 10, 2008*

**advanced functions HELP!!!**

Radioactive decay is the process by which an unstable element transforms into different element, typically releasing energy as it does so. For 500g of a radioactive substance with a half-life of 5.2 hours, the amount remaining is given by the formula M(t)=500(0.5) ^ t/5.2 a) ...
*December 10, 2008*

**Foreign Languages**

listen carefully and try to understand. Don't react like the speaker is talking to you, just listen him.
*December 4, 2008*

**chemistry**

how would you do the Empirical And Molecular formula stuff i got three elenments that are Carbon with 78.23% , Hydrogen with 6.56% , and Nitrogen with 15.21%
*November 21, 2008*

**CALCULUs**

For all x in the interval [-11,13] the function f is defined by x^3(x+3)^4 On which two intervals is the function increasing? Find the region in which the function is positive
*November 21, 2008*

**science**

what is the atomic structure for potassium
*November 19, 2008*

**social studies**

Radical Republicans believed that former slaves should _______________. be granted citizenship but cannot vote? is that correct? thanks in advance.
*November 18, 2008*

**social studies**

In 1867 What did Congress decide about the southern states that ad not been readmitted to the union? Was it that they were supervised by military officers? thanks
*November 18, 2008*

**Physics please help**

Calculate the force required to pull a copper ball of radius 3.00 cm upward through a fluid at the constant speed 7.00 cm/s. Take the drag force to be proportional to the speed, with proportionality constant 0.950 kg/s. Ignore the buoyant force.
*November 17, 2008*

**Trig - Identies/equation, please help!**

I get this now!!, Thanks!!!, i guess i should study now.
*November 12, 2008*

**Trig - Identies/equation, please help!**

the ΘЄ[0°, 360°) was suppose to mean its 0° < or = Θ < 360°
*November 12, 2008*

**Trig - Identies/equation, please help!**

2Sin(Θ+47°)=1 ΘЄ[0°, 360°) What I did: Sin(Θ+47°)=1/2 Sin 1/2 = Θ+47° 30°+360 = Θ+47° 343° = Θ Ok, so how do i find the other solutions? In this problem its 103°. I think we were suppose to do something ...
*November 12, 2008*

**french**

Fixed up all the accents... hey, Mme, maybe you might wanna check out that problem... cuz im getting all these wierd characters where the accents are supposed to be. Venez voyez = Venez voir Because the French word "la chance" usually means "luck," it would...
*November 12, 2008*

**geography**

Define Commerical, Specialized and Subsistence Agriculture
*November 12, 2008*

**french**

ugh, all the accents are screwed up... here's the fixed version i hope it works >.< Thank you for using the Jiskha Homework Help Forum. Always try to write using the structures and vocabulary you have used. Sometimes, if you do NOT provide the English of what you are...
*November 11, 2008*

**ETH/125**

I am an Axia student also. I am still looking for different measurments of prejudice.
*November 10, 2008*

**french**

C'est genial. Bon Felicitations
*November 10, 2008*

**chemistry**

Triple Point Clicker Challenge The Lewis structure for nitroglycerin is shown below. 1.00 mL of liquid nitroglycerin is placed in a sealed, reinforced, insulated steel box measuring 1.00 m on each side and filled with argon gas at 15.0 oC and 1.00 atm. The density of ...
*November 10, 2008*

**OChem**

1. Why does not fluorene dissolve in 1.5M sodium hydroxide solution? 2. What experimental difficulty would you encounter if you had neclected to include a drying step before evaporating the ether solution of the neutral organic compound (fluorene)?
*November 4, 2008*

**chemistry**

an auto mechanic spills 85 mL of 2.4 M H2SO4 solution from a rebuilt auto battery. how many mL of 1.2 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid?
*November 3, 2008*

**chemistry**

if 24.25 mL of a standard M NaOH solution is required to neutralize 26.00 mL of H2SO4, what is the molarity of the acid solution?
*November 3, 2008*

**chemistry**

How many total moles of ions are released when each of the following samples dissolves completely in water? ? 3.70g of CuSO4 5H2O
*October 31, 2008*

**Math**

write 109 3/4 as a decimal write 0.3246 as a percent
*October 25, 2008*

**Math**

Identify the rate in the following statement: 75 is 15% of 500 A) 75 B) 500 C) 15%
*October 25, 2008*

**Math**

The electricity costs of a business increased from $18,000 one year to $19,000 the next. To the nearest whole percent, what was the rate of increase?
*October 25, 2008*

**Organic Chemistry**

--Why does caffeine have a larger Rf value than chlorophyll? --If two compounds have the same Rf under identical conditions. Does this show that they have identical structures? Explain.
*October 23, 2008*

**math**

oops i mean open toad.
*October 20, 2008*

**math**

Open Toed. The joke answer is open toed sandals but for the pizzazz is the first one.
*October 20, 2008*

**College Chemistry**

A 2.80 -g sample of an unknown chlorofluorocarbon is decomposed and produces 557mL of chlorine gas at a pressure of 750mm Hg and a temperature of 298K . What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?
*October 16, 2008*

**differential equations**

dy/dx=(9+20 x)/(xy^2)
*October 8, 2008*

**science**

what is an ion
*October 6, 2008*

**algebra**

give the slope for the following lines: y+2=0 and x-3=0
*October 5, 2008*

**thermochem**

An unknown volume of water at 18.2°C is added to 27.0 mL of water at 36.7°C. If the final temperature is 23.5°C, what was the unknown volume? (Assume that no heat is lost to the surroundings; d of water is 1.00 g/mL.)
*October 5, 2008*

**chemistry help**

A 265 g aluminum engine part at an initial temperature of 2.00°C absorbs 84.5 kJ of heat. What is the final temperature of the part (c of Al = 0.900 J/g·K)?
*October 5, 2008*

**thermochemistry**

Calculate the amount of heat liberated (in kJ) from 374 g of mercury when it cools from 83.7°C to 19.1°C.
*October 5, 2008*

**chemistry-thermochemistry**

A student mixes 85.7 g of water at 68.0°C with 50.7 g of water at 24.5°C in an insulated flask. What is the final temperature of the combined water
*October 5, 2008*

**Project Management**

me
*October 5, 2008*

**Critical Thinking**

The great French historian Jules Michelet (1798-1874) sympathized with the French Middle Ages and with the Revolutionary epoch in France, yet he wrote his best work on the despotic French monarchy, which he despised. 5) The statement above, if true, would most clearly support ...
*October 4, 2008*

**Algebra**

(1st james) that means to make a parabola with a slope of -3
*October 1, 2008*

**Algebra**

yes but i still dont get how you got that (1st james)whats the coordinates
*October 1, 2008*

**Algebra**

if i were to graph it (question2)would it be on the negative side or positive side
*October 1, 2008*

**Algebra**

were suppose to see if its a function or not and i dont get these problems can you explain it to me? 1) X=15 2) y=3x+2y
*October 1, 2008*

**math**

Yes, I did reach the number 1 by following the example given. To see how this game works basically I needed to translate it into an algebraic expression (x^2-1)/(x-1)-x the expression needed to be simplified, factored using the difference of squares, I then cancel like terms, ...
*October 1, 2008*

**math distributive property**

9 x 30 + 9 x 5= 8 x 80 + 8 x 4= 3 x 10 + 3 x 3=
*September 26, 2008*

**IAH 206 - Humanities**

Oh ok. I am starting to understand this a little better. So if GMO alter the crops what would be an objection to that? Possibly that it is good or isnt good for the crops? Thanks!
*September 20, 2008*

**IAH 206 - Humanities**

Well i was thinking of Genetically Modified Food. But what I am having a hard time with on this paper is that. GMO's and even cell phones alter our "selves"
*September 20, 2008*

**IAH 206 - Humanities**

My teacher wants me to tell how technology modifies our world, and what that means for certain themes about technology, but he wants us to focus on ways in which technology may have an impact on our "selves" in a broader and more indirect way, in ways that don't ...
*September 20, 2008*

**math 3 grade**

Darin counted 46 cars than trucks in a parking lot. There were 29 trucks. Write an expression that shows how many cars were in the parking lot?
*September 18, 2008*

**math**

First, you know that 1 inch is 15 miles, so that leaves you with the 3/4 of an inch. Divide 15 by 4, and then multiply by 3. This should give you 11.25. Then add 15+11.25=? and you should get your answer.
*September 16, 2008*

**science**

(20*13.6)+50.35=?
*September 16, 2008*

**Pre calc**

Oops! I'm sorry for the typo, it should be (-a)^3 instead of (-3a)^3. All the typos after that are the same. My mistake, I'm sorry.
*September 16, 2008*

**Pre calc**

To test for symmetry, first you need to know what kind of symmetry you want to test for. Is it Over-The-Origin Symmetry, or Over-The-X-Axis Symmetry, or Over-The-Y-Axis Symmetry? First, you should rewrite your equation with new variables: b = a^5 + a^3 + a For ORIGIN SYMMETRY...
*September 16, 2008*

**business law**

G starts a fire that soon consumes Poor P's trailer. G did not know that the trailer was occupied and had no reason to know this, but it was. After rushing into the trailer to save her child, P is severely burned. P sues G in negligence. Assuming that G has breached a ...
*September 15, 2008*

**7th grade math(the metric system)**

ANYONE IM ALMOST DONE
*September 9, 2008*

**7th grade math(the metric system)**

THE U.S. METRIC CONVERSION ACT CALLS FOR ? CONVERSION? THE WORD USED TO DESCRIBE THE INCH POUND SYSTEM?
*September 9, 2008*

**math**

How many thousandths are in one hundredth
*September 9, 2008*

**math**

even numbers
*September 9, 2008*

**Physics**

Suppose an astronaut drops a feather from 1.3 m above the surface of the Moon. If the acceleration due to gravity on the Moon is 1.62 m/s2 downward, how long does it take the feather to hit the Moon's surface?
*September 2, 2008*

**Math**

I disagree, because the value 3 in 34,465 is in the 10,000 place, meaning it is valued at 30,000.
*September 2, 2008*

**Physics**

thank youu :D
*September 2, 2008*

**Physics**

A bag is dropped from a hovering helicopter. The bag has fallen for 2.0 s. What is the bag's velocity? How far has it fallen?
*September 2, 2008*

**Physics**

A tennis ball is thrown straight up with an initial speed of 20.0 m/s. It is caught at the same distance above the ground. How high does the ball rise (m), and how long does the ball stay in the air (s)?
*September 2, 2008*

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