Friday

November 21, 2014

November 21, 2014

Number of results: 57,252

**math**

On a straight line graph, if the line is going this way \ and it goes through 5 on the x axis and 4 on the y axis then what is it's gradient? How do I work this out? Thanks xx You also have to specify a point that the line goes through. Does it pass through the origin (x=0, y=...
*March 11, 2007 by Me*

**Chemistry II**

What volume of .0500 M Ba(OH)2 will react completely with 21.00 mL of .500 M HCl? Same type problem. Post your work if you get stuck. 2HCl + Ba(OH)2 --> 2HOH + BaCl2 (.0500 mol HCl / 1000 mL) (21.00 mL) (1 mol Ba(OH)2 / 2 mol HCl) (1000 mL / .0500 mol Ba(OH)2) = 1.05e2 mL ...
*April 25, 2007 by Jayd*

**College Physics**

A spring fixed at one end is compressed from its relaxed position by a distance of 0.20 m. See the graph of the applied external force, Fx, versus the position, x, of the spring. (a) Find the work done by the external force in compressing the spring 0.17 m starting from its ...
*October 13, 2009 by Megan*

**Algebra**

2 pumps can fill a water tank in 45 minutes when working together. Alone, the second pump takes 3 times longer than the first to fill the tank. How long does it take the first pump alone to fill the tank? Show all work
*October 9, 2011 by Anne*

**Physics**

A rifle with a weight of 20N fores a 5.0g bullet with a speed of 300m/s. (a) Find the recoil speed of the riffle (b) If a 700-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and the rifle. Please show work. Thank you!
*July 14, 2013 by Xian*

**pre-calculus**

An urn contains 7 red marbles labeled (1,2,3,4,5,6,7) and 5 green marbles labeled (1,2,3,4,5) four marbles are pulled out at once. what is the probability. A. all four marbles are red B. more of the marbles are green than red C. both red and green marbles are present D. two of...
*May 16, 2011 by Ron*

**Early Child Ed.**

Would the correct answer to this question be "competition?" Research about the impact of cultural values on peer social interaction in an early childhood classroom may lead one to conclude that this environment may create biases if the primary social orientation favors: 1. ...
*October 31, 2007 by Brenda*

**physics**

Consider that a coin is dropped into a wishing well. You want to determine the depth of the well from the time t between releasing the coin and hearing it hit the bottom. Suppose that t=2.059 s and assume the speed of sound in air is 330 m/s. What is the depth of the well? Can...
*December 11, 2008 by jamie*

**Math**

On a TV game show, the contestant is asked to select a door and then is rewarded with the prize behind the door selected. If the doors can be selected with equal probability, what is the expected value of the selection if the three doors have behind them a $40,000 foreign car...
*August 10, 2009 by B.B.*

**HR**

I need to do a paper on Affirmative action, where I describe the elements of Affirmative Action as it applies to public and private sector employers, and how it interacts with Ttitle VII requirements of equal employment opportunity. However, I cannot find ANY information on ...
*September 5, 2009 by Marie*

**psychology**

The "face mobile" located in the right temporal lobe of the brain,explain why: A the cells fire when a dog lover looks at picture of show dogs B infants are not afraid to go to strangers. C ganglion cells in this area respond to simple familiar faces D we need only the right ...
*September 22, 2009 by vedrana*

**psychology**

The "face module" located in the right temporal lobe of the brain,explain why: A the cells fire when a dog lover looks at picture of show dogs B infants are not afraid to go to strangers. C ganglion cells in this area respond to simple familiar faces D we need only the right ...
*September 22, 2009 by vedrana*

**algebra**

This is actually part of a statistics problem I'm working but I forgot how to do this and if someone can refresh my memory, I might be able to solve these. The problem is with factorials. 20! / 5! (20-5)! I know I can reduce and cancel, but how and where? If I do 20! / 5! (15...
*August 4, 2010 by Dawn*

**Chemistry**

Cyclopropane reacts to form propene in the gas phase. The reaction is first order in cylclopropane and has a rate constant of at 485 . If a 2.5 reaction vessel initially contains 724 of cyclopropane at 485 , how long will it take for the partial pressure of cylclopropane to ...
*February 24, 2011 by Ellenne *

**Math**

Can someone help me and verify if the answer I picked is correct? 1. Which function does not have a maximum value? a) x^2 + 9 b) g(x) = 9 - x - x^2 c) h(x) = -(x+1)^2 d) k(x) = -4 + x - x^2 The answer is A because letter b,c,d opens the parabola downwards? Myra is riding a ...
*December 3, 2011 by Jayson*

**English**

There are seven books. A series of eight movies based on the novels has been made by Warner Bros. They started making the movies in 2001. The first one was released on November 16th 2001. The second to the fifth were released respectively on 2002, 2004, 2006 and 2007. (Would ...
*October 19, 2013 by rfvv*

**American History**

Which of the following statements is most accurate regarding America's political climate between 1876 and 1896? A. Southern states tended to vote Republican. (B.) The influence of the president over Congress diminished. C. The party that won the presidential election also ...
*May 31, 2014 by Vicky*

**English grammar**

1. He gave us a piece of paper. 2. He gave each of us a piece of paper. 3. He gave us the paper. Does #1 mean #2? What about #3? Is #3 correct?
*October 23, 2007 by John*

**English**

1. If it snows tomorrow, I'll not go hiking. 2. Because it snows tomorrow, I'll not go hiking. 3. Because it will snow tomorrow, I'll not go hiking. (Which one is correct of the two, #2 and #3?)
*November 4, 2010 by rfvv*

**Math - Calculus Question.**

hey can someone explain to me the relationship between the chain rule and implicit differentiation? It would be very much appreicated, thanks The chain rule is utilized whenever you have a function within a function such as cos^2 x or (5x+1)^1/2. Implicit differentiation is ...
*December 6, 2006 by Andrew D*

**MATH**

HOW DO LEAST COMMON MULTIPLES WORK. IT SAYS THERE IS A PROBLEM TO SOLVE BUT MY MOM AND I CAN'T FIND IT. THEY CIRCLED BOTH 2'S AND 3'S. The least common multiple of 2 and 3 is six. The least common multiple of 12 and 6 is 12. # noun: the smallest multiple that is exactly ...
*January 2, 2007 by MORGAN*

**Mrs. SUe**

Curiousity; Do you get paid for all for all of this hard work that you do??? BEcuase you are always on helping all students on a ton of subjects.. I really appreciate what you do and you deserve to get paid for all the students you are really helping, without giving them the ...
*May 28, 2009 by Sarah*

**Algebra**

Candy and Tim share a paper route. It takes Candy 70min to deliver all the papers, and it takes Tim 80min. How long does it take the two when they work together? The answer is 37min and 20s. Here's what I have. 7/6t + 8/6t = 15/6 I have t = 5/2. I don't think that's 37min and ...
*September 2, 2009 by Sean*

**math**

How do I write this problem? to recieve a grade B- in a math course, you must have a mean of 83 on five tests (4 tests + one final) all 100 pts maximum each. Your scores thus far are 85,79,82,and 81. How many points must you have on the final, to earn the B-? write down your ...
*September 4, 2009 by Anonymous*

**Physics**

An unknown potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 2.5 x 10-20 J of work is needed to eject a positive Calcium ion (Ca2+) from the interior of the cell, what is ...
*February 24, 2010 by Susie*

**SOCIAL STUDIES**

I need to know about current events happening in France. Please list some current events or give me some helpful sites. Thanks!!!:):):):):):):) (GuruBlue the site you gave me didn't work instead it brought me to google so please try giving me HELPFUL sites)Thanks!!!!!!!!
*June 2, 2010 by Sangeeta*

**Science(pre-med)**

In pre-med we are making powerpoints about the anatomy and physiology of the cardiovasculary syemstem and the respiratory system!! So far I finished the cardiovasculary syestem and i am wondering is the Anatomy of a organ the structures that it is composed of, and also is the ...
*November 14, 2010 by Louisea*

**physics**

The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. To accomplish this, the mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system What is the work done by ...
*May 18, 2011 by Anonymous*

**English**

Please check my work. Correctly identifying the part of speech of each of the word in the sentence. The new mail carrier finally arrived. The (definite article) new (adjective) mail (noun) carrier (noun) finally (adverb) arrived (past tense verb).
*July 19, 2011 by Priya*

**English**

Please check my work. Correctly identifying the part of speech of each of the word in the sentence. The new mail carrier finally arrived. The (definite article) new (adjective) mail (adjective) carrier (noun) finally (adverb) arrived (past tense verb).
*July 19, 2011 by Priya*

**Algebra**

If Rick’s Automotive charges $50 plus $15 for each (15-min) unit of time when making a road call. Twin City Repair charges $70 plus $10 for each unit of time. Under what circumstances would it be more economical for a motorist to call Rick’s? show all work
*January 8, 2012 by misty *

**Physics**

A moving 4.5 kg block collides with a horizontal spring whose spring constant is 226 N/m (see figure). The block compresses the spring a maximum distance of 8.0 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.47...
*November 9, 2014 by David*

**Management**

Which of the following statements about Maslow's needs hierarchy is correct? A. Esteem needs must be satisfied before one strives to fulfill social needs. B. Self-actualization is a growth need. C. safety needs are more basic than physiological needs. D. Social needs are ...
*May 29, 2012 by Amanda*

**Math**

A series circuit contains a resistor with R = 24 , an inductor with L = 2 H, a capacitor with C = 0.005 F, and a generator producing a voltage of E(t) = 12 sin(10t). The initial charge is Q = 0.001 C and the initial current is 0. Find the charge at time t...
*July 10, 2007 by COFFEE*

**chemisrty**

if i am trying to find the diameter of an oil molecule and express my answer in scientific notation. the info is drop of oil 0.05 cm3 from a dropper spreads out to 40 cm2 is it vol = l x w x h 0.05cm3 = 20 x 20 xh 0.05 cm3 = 40cm2 after this im stuck as i dont know what the ...
*February 17, 2007 by bex*

**physics**

Hans uses a wheelchair. Although he has a rampto in his house, he finds it difficult to get his wheelchair up the ramp. Whcih modification would make it easier for Hans to get in his house? a. increase the length of the ramp b. increase the friction between the wheels and the ...
*February 26, 2010 by Toni*

**Algebra**

Here is my question: If (2, -3) and (-5, 4 are the endpoints of a diagonal of a square, what are the coordinates of the other two vertices? I got (2,3) and (-5,-4). But the other question was: What is the area of the square? How would you find this? Do you just count the ...
*December 2, 2008 by Celina*

**chemistry**

Using data in table below and S °(C2H6(g))= 229.5 J·mol-1·K-1, calculate ÄfS° for C2H6(g) in J·mol-1·K-1. Compound S °, J·mol-1·K-1 Compound S °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 I am sorry , last time i did not show my working. thanks for helping me . Delta S= Delta S ...
*May 15, 2010 by write2khin*

**chemistry**

I'm starting to learn about colligative properties and i want to know if there are different equations for boiling point elevation and freezing point depression? In the book they give me the equation: (delta)Tb= Kb times molality. But my teacher gave us: delta Tb = Kb times # ...
*June 1, 2010 by jenny*

**English**

in the last chapter of breaking through, Jimenez' mother was most concerned with a papa's health b both of these choices are correct c jimenez' clothes i am very confused. when papa called mama to help him get dressed but not connect to his health in fact, mama went to help ...
*July 3, 2010 by Rainbow*

**math**

From a base elevation of 6300 ft. a mountain peak rises to a summit elvation of 14366 ft. over a horizontal distance of 15844 ft. Find the grade of the peak. The grade of the peak is ?%I do not even know where to begin with this. Does the 6300 ft.get subtracted from 14366 and ...
*August 23, 2010 by barb*

**College English**

Read the sentence below. Then, choose the correct combination of antecedents and pronouns. “The aliens may also implant tiny metal tracking devices in the bodies of these abductees so that they can locate them easily in the future.” A. They replaces abductees; them replaces ...
*January 26, 2011 by Betty*

**math**

Can you tell me if I have the correct answer to this problem. A formula to determine the area of a person’s skin in square inches is s=15.7w^0.425 h^0.725 where w is weight in pounds and h is height in inches. Use S to estimate the area of a person’s skin who is 65 inches tall...
*April 30, 2011 by patiance*

**commercial advertising**

why are more and more advertising commercials animated?? ny answer: To catch the viewers attention. They are funny and colorful because the average person would probably not pay attention to a bland black and white commercial with no theme song or color. Is that a good answer...
*February 4, 2012 by 12-year-old-poet*

**Spanish (URGENT)**

Habia una vez hay un conejo pequeno. El no estaba contento. Queria mirar como les otros animales. Cuando él vio Mr. Bushy Tail, la ardilla, él quise una cola que se parecio las ardillas. Entonces, él vio Mr. Porcupine y el quise (quills). Entonces él pasó Mrs. PuddleDuck y él ...
*January 27, 2011 by John*

**Math**

On January 1, 1984 there were 548 more commercial television stations than educational stations in the United States. There were 831 commercial television stations. How many television stations were there in 1984? I think the answer is 1114 stations. Is that correct?
*February 18, 2009 by Ace*

**Are my answers correct? Chem**

I really need help with balancing these equations: Can you check if my answer are correct? Please 1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to produce sulfur dioxide gas, water and sodium chloride NaHSO3 + HCl = SO2 + H2O + NaCl 2. Sodium nitrate reacts with ...
*March 14, 2011 by Anonymous*

**Physics**

Two resistors 10 Ω and 5 Ω are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ω resistor? Answer 5 V 10 V 15 V 20 V I did the work as follows: 1/Req = 1/10 + 1/5. 1/Req = 0.3/1. Req(0.3) = 1(1). Req = 3.33 ohm. Then, ...
*July 13, 2013 by Jordan*

**accounting**

In accounting for an immaterial amount of overapplied overhead, which of the following is part of the adjusting entry? a. A debit to the Work in Process Inventory account b. A debit to the Overhead account A debit to the Cost of Goods Sold account c. A credit to the Overhead ...
*August 12, 2008 by Lee*

**Algebra **

A triangle has an area of 60 in^2. Its base is 10 inches and its height is √x inches. What is the value of x? What is the height of the triangle? Please show all work that you use to determine your answer. (Hint: The formula for the area of a triangle is A= 1/2bh where b...
*May 20, 2013 by sarah *

**Math**

You live 35 1/3 miles from your grandmother's house. You're workplace is 7 2/5 miles from your grandmother's house. If you drive by your grandmother's home on the way to work one morning, what is the total number of miles you drove that morning? Write your answer as a mixed ...
*November 13, 2013 by Alan*

**Physic (concepts-please check my thoughts)**

A net torque applied to a rigid object always tends to produce? a)translational acceleration b) rotational equilibrium c) rotational acceleration d) rotational inertia e) none of these work (c) Torque produces torsion and tends to produce rotation. The net torque acting on a ...
*December 10, 2006 by Diane*

**math**

tell how you did it thank you Write an equation using n and t. The total bill (t) was twenty times the number of people (n). t=20n t total bill was equals 20t 20 times number of people some purists will insist on writing it 20n = t either way is correct
*April 25, 2007 by school girl*

**Physics**

What is the final speed of a car if it starts at 32 m/s and loses 1800J of energy? I think the equation should be: 0.5m(32)^2 - 1800J = 0.5mv^2 where m = mass of the car v = final speed. Since there is only one equation with 2 unknown, I can only solve it to: v = (1024 - 3600/...
*November 11, 2008 by Angus*

**math**

1)tammy is making a poster. she had planned the poster to be 36 inches high and 24 inches wide. If she instead decides to make the poster 24 inches high, but keeps the same proportions, how wide will the poster be in inches? my original answer was 12. But i tried again and i ...
*July 23, 2009 by Jason P*

**Social Studies 7R - Q2**

2. Critical Thinking - Why did us exports increase dramatically between 1803 & 1807? Answer - The embargo hurts America that's how exports increase dramatically between 1803 & 1807. am i correct???? i had been kind of having trouble with this question
*April 23, 2012 by Laruen *

**Physics**

Photons of energy 12eV are incident on a metal. It is found that current flows from the metal until a stopping potential of 8.0V is applied. What would happen if the wavelength of the incident photons was tripled? Would the energy be 4eV,so 12/3=4, and there will be no current...
*April 22, 2013 by Sheila*

**Physics**

Photons of energy 12eV are incident on a metal. It is found that current flows from the metal until a stopping potential of 8.0V is applied. What would happen if the wavelength of the incident photons was tripled? Would the energy be 4eV,so 12/3=4, and there will be no current...
*April 23, 2013 by Sheila*

**Calculus - please help**

Can someone please do these questions step by step and explain them. I really need help so I can do the same for the rest. a) f(x) = e^(sqrtx) 1. State the domain and range 2. Find f'(x) 3. Determine the intervals of increase and decrease. d) f(x) = e^x + e^-x 1. State the ...
*June 5, 2008 by Sam*

**Applied Calculus......**

Suppose a snowy-tree cricket chirps 180 times per minute if the temperature is 102 degrees, and chirps 120 times per minute when the temperature is 90 degrees. Construct a mathematical model that will predict the number of chirps per minute at a temperature in degrees ...
*February 3, 2013 by Jacob*

**Pre-calculus**

You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the unit price for x items. 80 p + x - 380 = 0 and 84 p - x - 40 = 0 Identify which is the supply curve and demand curve and the appropriate domain. Put the...
*October 13, 2014 by Irina*

**Physics (Stress & Strain)**

What is the factor of safety of a steel hanger having an ultimate strength of 550.000MPa and supporting a load of 79000.000N. The steel hanger in question has a cross sectional area of 7.000cm^2. ANS = (Round to 3 decimal places) ultimate strength = 550.000MPa load = 79000....
*June 27, 2013 by Danny*

**Physics (Stress & Strain)**

What is the factor of safety of a steel hanger having an ultimate strength of 550.000MPa and supporting a load of 79000.000N. The steel hanger in question has a cross sectional area of 7.000cm^2. ANS = (Round to 3 decimal places) ultimate strength = 550.000MPa load = 79000....
*June 28, 2013 by Danny*

**Physics**

I'm supposed to to calculate an experimental value for the acceleration of gravity from the slope of an acceleration vs. delta mass graph... also i'm supposed to find the percent error (to the normal acceleration of gravity of 9.8).. the slope is .442 i'm not sure how to do ...
*October 30, 2014 by Amber*

**trig**

if 10 students enter projects in the art show, how many different ways can they come in 1st, 2nd, and 3rd place? would you go 10^3 OR 10TIMES 3? This is not a trig question. Neither of those answers is correct. After making one of ten possible choices for first place, there ...
*January 18, 2007 by Dom*

**Community College**

waht is the impact of a stock repurchase on a companys debt ratio? Does this suggest another use for excess cash? The correct subject in the subject line will get you help in a more timely manner, and will aid in not wasting the time of other teachers. When a company ...
*April 22, 2007 by Erica*

**French**

Could you please tell me if is this correct? "Plusieur des grands magasins de New York ont...." I have read elsewhere that after adverbs of quantity one uses DE; and also that if the (plural) noun is preceded by an adjective one uses DE instead of DES. I am having real ...
*March 29, 2008 by Anonymous*

**Math(Please check)**

During the month of February, a flu epidemic hit the University. The number of people sick at time t (measured in days) is given by the function P(t). The rate at which the epidemic is spreading on February 3 is 110 people per day. How is the information best represented ...
*January 30, 2011 by Hannah*

**science**

1. Plants and other organisms such as green algae can produce their own energy in a process called _______. 2. The process of changing radiant energy into chemical energy is called ______. I think that both answers are "photosynthesis". However, two same answers in a row doesn...
*September 6, 2012 by v.*

**calculus**

Integrate x/(x^2 + 4) dx via trig substitution and by u=x^2+4 substitution. Show that results are equal. Via trig substitution of x=2 *tan t, I get: 1/2 * tan^-1 (x/2) + c Via u = (x^2 + 4) substitution, I get: 1/2 * ln |x^2 + 4| + c How are these equal?
*December 31, 2007 by mathstudent*

**Calculus**

A sphere is increasing in volume at the rate of 3(pi) cm^3/sec. At what rate is the radius changing when the radius is 1/2 cm? The volume of a sphere is given by V=4/3(pi)r^3. A. pi cm/sec B. 3 cm/sec C. 2 cm/sec D. 1 cm/sec E. .5 cm/sec
*October 26, 2014 by Anonymous*

**Calculus**

A sphere is increasing in volume at the rate of 3(pi) cm^3/sec. At what rate is the radius changing when the radius is 1/2 cm? The volume of a sphere is given by V=4/3(pi)r^2 A. pi cm/sec B. 3 cm/sec C. 2 cm/sec D. 1 cm/sec E. .5 cm/sec
*October 27, 2014 by Anonymous*

**Algebra**

Two more Algebra questions : Having some difficulty with these. Drawing a blank on this one, not sure where to start. Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, -5). I have half a ...
*October 15, 2007 by John*

**english/11th grade**

I'm supposed to choose how the italicized noun clause is used. Not so sure about the different types of noun clauses.. can someone help me? & also kinda explain the difference? 1. The chairman heard [what was said about the program.] S OP PN DO 2. A good night's sleep is [what...
*December 9, 2011 by Amy*

**LAC Help Question**

1. Write a four paragraph literary essay in response to the following question. Be sure to include a thesis statement in your introduction, provide textual evidence in the body paragraphs, and end the essay with a strong conclusion. You may use your books and other notes you ...
*January 25, 2013 by London *

**AP Chemistry**

1) Calculate the volume of air at 30 degrees C and 1.00 atm that is needed to burn completely 10.0 grams of propane. Assume that air is 21.0 percent O2 by volume. 2) Assuming all of the heat evolved in burning 30.0 g of propane is transferred to 8.00 kg of water (specific heat...
*October 29, 2006 by OhGodChemistry*

**deposition**

What is deposition? Effects of deposition? whats made by deposition? Thank you for using the Jiskha Homework Help Forum. Anytime you don't understand a word, be sure to look it up in a good dictionary. For example, here is what the online dictionary says: Main Entry: de·po·si·...
*February 25, 2007 by Anthony*

**physics**

An arrow with a mass of 0.12 kg is pulled back in a bow. After being held still, it is let go, moving at 23m/s after the 0.51meters in which the arrow is in contact with the bow string? What work was done on the arrow by th bow string? What force was exerted by the archer to ...
*November 2, 2008 by jeff*

**calculus**

A format for textbook page layouts is to be chosen so that each printed page has a 4-cm margin at the top and at the bottom and a 2-cm margin on the left and right sides. The rectangular region of printed matter is to have an area of 800 sq. cm. Find the dimensions for the ...
*May 10, 2007 by maricela*

**physical science**

Does not settle on standing: I answered homogeneous mixture - solution and compound is this correct? Can seperate when allowed to stand alone I answered heterogenous mixture * choices solution, compund, heterogenous mixture and homogeneous mixture
*October 6, 2007 by liz*

**english**

She's meeting fred at 3 o'clock I think the name of the structure is. Future continuous Could you tell me if it's right. Also could you tell me if the form is correct. She's meeting Fred at 3 o'clock Subjet+ verb-ing +future continuous
*January 25, 2008 by lewis*

**Math**

The function H described by H(x)= 2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus( the bone from the elbow to the shoulder) is x cm long? Predict the height of a woman whose humerus is 35 cm long. Is this correct? 2.75(35) + 71.48= 167...
*January 31, 2010 by Kelly*

**chemistry**

can you just tell me if this statement is correct if a compounds conjugate base is aromatic then it is more acidic compared to a compound whose conjugate base is anti or non aromatic if a base is aromatic it is weaker than a base that is anti aromatic
*May 29, 2010 by jessie *

**Personal Dimension of Educatio**

Select the sentence that has correct subject-verb agreement. 11. Neither my dad nor my siblings want to go to the family reunion this summer. 2. Neither my dad not my siblings wants to go to the family reunion this summer. My answer is 1
*November 16, 2012 by Jackie*

**math**

beads for sale: 12 cents for 15. Write an equation relating the cost (c) and the number of beads (n0 for the beads. Katie or Halida or whoever, Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your ...
*May 3, 2007 by KATIE THE NEEDS HELP!!*

**Business Calculus**

The function f(x)=4x+9x^-1 has one local minimum and one local maximum. Question: This function has a local minimum at x=______ with a value _______ and a local maximum at x=________ with value _______?
*May 2, 2008 by Daniela Davila*

**Chemistry**

Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of themetal ion compound would you choose? 1. the carbonate (CO2−3 ) salt of the metal ion 2. the hydroxide (OH−) salt of the metal ion 3. the nitrate (NO−3...
*October 4, 2010 by May*

**Sociology/Social Responsibility**

I don't know how to set up the journal entry (when I Google it it just gives me accounting journals). I also am not sure how to go about answering the questions. Could someone please help!! Write a 2-3 paragraph Journal entry addressing the following questions. What ...
*November 2, 2014 by Cathy*

**math derivative please help**

the derivative of 2x^e is zero right or no? do i have to use the log formula 2 x^e is x to the power 2.718.. It is not a constant and therefore the derivative is not zero. Use the formula for the derivative of x to a power that is constant (x^a). The formula for that may ...
*September 24, 2006 by Anonymous*

**calculus**

Use the Upper Bound theorem to find an integral upper bound and the Lower Bound Theorem to find an integral lower bound of the zeros of the function. 3x^4 - x^3 - 8x^2 - 3x - 20. This is one of the problems from my summer review and I can't find anything on the Upper Bound ...
*September 9, 2010 by Jesse*

**Calculus**

Company QRS generated a net profit between 1992 and 1997 at a rate approximated by 20 t + 264.5 million dollars per year, where t is the time in years since 1992. Find the value, in 1992, of QRS's net profit over the 5-year period from 1992 to 1997. Assume that the interest ...
*December 1, 2010 by Brooke*

**physics wave**

A) Show that the average rate with which energy is transported along a cord by a mechnical wave of frequency f and amplitude D is: P(average) = 2(pi^2)u v(f^2)(D^2) v is speed of the wave u is the mass per unit length (M/L) B) If the cord is under a tension Ft =100 N and has ...
*May 1, 2008 by Anonymous*

**Chemistry**

Iron metal is dissolved in dilute aqueous HCl. The resulting solution is warmed with dilute nitric acid and then treated with aqueous potassium iodide. Write equations for the reactions. Ok so for the first step I got: Fe + 2HCl --> FeCl2 + H2 I'm guessing that when nitric ...
*March 2, 2010 by Alice*

**Math**

A mini license plate for a toy car must consist of two numbers followed by a letter. Each number must be a 5, 7 or 9. Each letter must be a C, A or N. Repetition of digits is NOT permitted. Use the counting principle to determine the number of points in the sample space. ...
*July 29, 2011 by Jen*

**Acid-Base chem**

Which of the following would for a buffer if added to 250.0 mL of .150 M SnF2? a).100 mol HCl b).060 mol HCl c).040 mol HCl d).040 mol NaOH e).040 mol HF I figured I could find out the pH of the solution with HCl/NaOH/HF added, and then find the pH when equal amounts of H+ and...
*May 5, 2007 by Taylor*

**Stupid Chemistry**

Ok, blonde moment here, Kb is the same as Ka but just for bases and Ka is for acids correct? right. Ka is the ionization constant for acids, Kb is the ionization constant for bases. BUT, we can change one into the other this way. KaKb = Kw. So if you are given a Ka but you ...
*August 4, 2007 by Taasha*

**Accounting for Managers**

Question 11 of 20 5.0 Points Which of the following accurately describes a difference between job order and process costing systems? A. In job order costing systems, overhead costs are treated as product costs, whereas in process costing systems, overhead costs are treated as ...
*September 5, 2012 by Blu*

**math**

Of the 15 teams in the National Hockey League Eastern Conference, three of them are based in canadian cities. Each year, eight of these teams qualify for the playoffs. Assuming that all the 15 teams have an equal chance of getting into the playoffs, what is the probability ...
*November 7, 2012 by Carol*

**statistics**

Of the 15 teams in the National Hockey League Eastern Conference, three of them are based in canadian cities. Each year, eight of these teams qualify for the playoffs. Assuming that all the 15 teams have an equal chance of getting into the playoffs, what is the probability ...
*November 7, 2012 by Anonymous*

**Social Studies**

Which of these is not a factor in determining whether a person is counted in the unemployment rate? A. whether the person currently has a job. B. whether the person has the skills needed to find a job. C. whether the person is actively looking for a job. D. whether the person ...
*February 10, 2014 by Anonymous*

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