Sunday

July 5, 2015

July 5, 2015

Number of results: 61,303

**math**

subtract: express your answer in simplest form. 5x-3/6 - (x+3)/6 answer choices a) 4x-1 b) 2x-3/3 c) 2x/3 -1 d) 2x/3 show me hou to arrive at the correct answer get a common denominator. get a common denominator. I thought 6 was the common denominator, why can't I use it since...
*July 15, 2007 by Diana*

**Physics**

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? IS THE CORRECT ANSWER 3.5MILES PER HR??????????
*March 9, 2012 by Anonymous*

**physics problem**

The density of a sample of air is 1.157 kg/m3, and the bulk modulus is 1.42 · 105 N/m2. a) Find the speed of sound in the air sample. -----> I found it 350.3 m/s and its correct. b) Find the temperature of the air sample. Give answer in °C. ----> I cant find this :S Can ...
*April 19, 2014 by comet*

**finances**

E X E R C I S E S Exercise 11.1 The child and family government benefits seminar was such a success that Advocates for Children will conduct a second seminar in an adjoining community. The executive director decides that this second seminar will attempt to maximize revenues. ...
*February 15, 2009 by monique solano*

**algebra**

above the x axis a dot on the -2 line up to 2.5, and another dot on -3 line up to 4.5, thats on left side, then right side a dot on 2 line up 2.5, and another on line 3 up to 4.5. Not sure how to figure this is someone is willing to help. possible answers; domain: {–3, –2, 0, ...
*September 18, 2012 by lee*

**CALCULUS ECONOMICS**

Consider an oligopolistic market with two firms. Each of them produces using a cost function given by c(q)=q^2. The aggregate demand in the market is given by 1000−p. Suppose that, in order to increase production, the government gives the firms a $100 per-unit produced ...
*March 13, 2014 by Jenney*

**Calculus Maxima/Minima**

An automobile traveling at the rate of 30 ft/sec is approaching an intersection. When the automobile is 120 ft. from the intersection, a truck, traveling at the rate of 40 ft/sec on a road at right angles with the automobile’s road crosses the intersection. How long after the ...
*September 28, 2014 by Mike*

**Calculus**

When production is 1700, marginal revenue is 8 dollars per unit and marginal cost is 6.75 dollars per unit. Do you expect maximum profit to occur at a production level above or below 1700? If production is increased by 50 units, what would you estimate the change in profit ...
*April 7, 2015 by Nope*

**organic chem lab**

I have been given the below information and asked to calculate the amount solvent and reactants needed to be used to obtain 1.0 g of the product. Benzyltriphenylphosphonium chloride. In a 100 mL round bottom flask (rbf), 5.2 g triphenylphosphine was dissolved in 20 mL benzene...
*July 5, 2006 by Jamshid*

**Math**

Each year (365 days) the fire department receives 270 emergency calls on average. In a give 7-day week, what is the probability of receiving A. no calls b. more than one call c. one call or less d. at least two calls please help and show me some work or how to do it so i can ...
*October 8, 2007 by Curious Student*

**Physics Work and Energy**

A 55 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 5.5 m/s. (Ignore small changes in gravitational potential energy.) (a) How fast is he going as he lands on the trampoline, 3.0 m below? (b) If the trampoline behaves like a spring of ...
*November 23, 2009 by DJ*

**Physics**

Anyone can help me solve 2 of those problems A man lifts a box of books that weigh 185N. The box is lifted 0.80m. How much work does the student do on the box? A thermometer can measure temperature to the nearest enth of a degree. Which of the following readings gives the ...
*January 25, 2010 by MJ*

**Physics**

Can you please show all your work so that I can understand how the problem is solved? In the Challenger Deep of the Marianas Trench, the depth of water is 10.9 km and the pressure is 1.16 x 10^8 Pa. a) if a cubic meter of sea water is taken from the surface to this depth, what...
*July 13, 2010 by Amanda*

**Trigonometry**

Steve and Peggy want to rent a 40 ft x 20 ft tent for their backyard to host a barbecue. The base of the tent is supported 7 ft above the ground by poles and the roped stakes are used for support. The ropes make a 60 degree angle with the ground. What are the dimensions of the...
*January 8, 2012 by Liz*

**physical fitness please help me**

Choose all the answers that apply. It's important to keep your exercise intensity within your target heart rate range so that _____. your heart gets a rest you're performing cardiovascular exercise you don't work at too high an intensity level you're strengthening your muscles...
*August 1, 2012 by Morgan*

**Chemistry **

Why wouldn't you do this reaction directly in a lab (and would rather use Hess' Law to determine the enthalpy of formation)?: 1/2N2(g) + 2H2(g)+ 1/2Cl2(g) -> NH4Cl(s) I don't think the reactants are that dangerous...? It's still pretty safe to do in a lab, isn't it? Are ...
*February 18, 2013 by a Canadian*

**Algebra 3-4**

The first stage of a rocket burns 28 s longer than the second stage. If the total burn time for both stages is 152 s, how long does each stage burn? Describe how you found your answer. I was originally thinking to divide 152 by 2 then add 28, but I realized that wouldn't work ...
*September 12, 2014 by Samantha*

**phisics**

A man cleaning his apartment pushes a vac- uum cleaner with a force of magnitude 57.6 N. The force makes an angle of 25.3◦ with the hor- izontal floor. The vacuum cleaner is pushed 2.71 m to the right along the floor. Calculate the work done by the 57.6 N force. Answer ...
*December 14, 2014 by Edgar*

**chemistry**

why doesnt the radius ratio rule work for TlCl3??? the division would be the radius of the cation / radius of the anion. For Tl3+ and Cl-...88pm/181pm = .49 which would correspond to a 'zinc blende' crystal structure and not a CsCl type crystal as the rest of the internet says...
*March 7, 2015 by matthew*

**spanish sra jmcgin**

hi we only had to do the answer - the actual HOLA - letter was our assigment given ot us here is my response I was not sure if I understood what you were saying about HACER..... Thank you so much Tú no necesitas estar nerviosa, porque tù conoces este material. Hacer presentaci...
*May 2, 2009 by sam*

**english**

I need help labeling complements in my sentences. I am not sure if I am doing this correctly or not. Could you please check to see if I have the following parts of speech labeled correctly? I must identify the subject, verb and complements. I must determinit if the complement ...
*September 6, 2009 by Lizzy*

**Algebra S.O.S**

I've been working on this a while, and I thought I got it right...until I got to step two. When I tried "veryfying my solution point" The lines didn't intersect at (4,2). I don't know, it's probably a silly little mistake on my part, but I can't get it quite right. The problem...
*February 11, 2009 by Katy*

**chem**

At 20 degrees celsius the vapor pressure of dry ice is 56.5atm. If 10 g of dry ice (solid CO2) is placed in an evacuated 0.25 L chamber at a constant temperature of 20 degrees celsius, will all of the solid sublime? Is the answer no? I don't know if this is right, but I used ...
*January 22, 2011 by jack*

**Calculus**

The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 370 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 5 dollar increase in rent. Similarly, one ...
*June 22, 2009 by Z32*

**Calculus**

The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 472 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 4 dollar increase in rent. Similarly, one ...
*July 13, 2010 by John*

**Calculus**

The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar increase in rent. Similarly, one ...
*October 28, 2011 by Anonymous*

**Calculus**

The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 360 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 9 dollar increase in rent. Similarly, one ...
*April 26, 2012 by Jack*

**Calculus**

The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar increase in rent. Similarly, one ...
*March 25, 2015 by Danielle*

**~Art~**

1) When an individual or institution recognizes the design and beauty of an object or artifact and designates it as art (1point) Commercialism Institutionalism*** Socialism Expressionism 2) A person who uses imagination and skill to communicate ideas in visual form (1point) ...
*October 1, 2013 by Gabby*

**Chemistry**

For a reversible reaction where A + B (both arrows) C + D, the equilibrium constant is represented by kc = 5.3 = (c)(d)/(A)[B]. Initially A and B are present at 2.00 M each. What is the final concentration of A once equilibrium is reached. I made an ICE table and came up with ...
*March 11, 2010 by Katie*

**biology**

What is the correct definition of a princible? a)A statement of a relationship between two or more abstractions. b)A simplified, symbolic representation of a theory or conceptual scheme. c)An abstract generalization that presents a systematic explanation about the ...
*April 9, 2010 by Mystic*

**biology**

What is the correct definition of a princible? a)A statement of a relationship between two or more abstractions. b)A simplified, symbolic representation of a theory or conceptual scheme. c)An abstract generalization that presents a systematic explanation about the ...
*April 9, 2010 by Mystic*

**English**

I forgot to include the following 4 statements. I hope you can correct them, too. Thank you. 1) Friendship is very important to (also "for") me. 2) In the future I'd like to become a chemist. I want to graduate and go to live abroad, maybe in Asia or America. 3) I've got two ...
*October 23, 2010 by Franco*

**BIOCHEMISTRY**

Mark each statment that is true or false and give reasons. you will get credit only if your reasoning is correct a) at a steady state of an enzyme catalyzed reaction, there is not net change in [S] or [P] b) the linear anomer of beta-glucose is the more reactive form c) ...
*January 25, 2013 by UCI KID *

**Geography (Ms. Sue)**

Is this correct: However, in the 1300s, as preventive measures have become discovered, most doctors recommended these methods or purifying the air to prevent plague: 1. Burn richly scented incense. 2. Fill the house with flowers. 3. Sprinkle the floors with vinegar. 4. Request...
*October 7, 2013 by Anonymous*

**Social Studies 8**

"Various theories have been proposed to explain its origin and characteristics, focusing on an assortment of factors, including the social and civic peculiarities of Florence at this time including its political structure and the patronage of its dominant family, the Medici." ...
*April 24, 2010 by Maddison*

**English**

Can you please help me check the following prepositions? Thank you. 1) I was angry with her about her behaviour. 2) I was angry/furious/annoyed/cross with her for being late. 3) I'm sure about/of that. 4) Short of (I can't find a good example) 5) I was pleased/delighted with ...
*October 12, 2010 by Franco*

**rate of reaction (formatted repost)**

I can't get my table to line up so I've surrounded the values in curly brackets. Experiment [SO2]i [O2]i IRD O2 {1} {0.05} {0.05} {7.3*[10^(-2)]} {2} {0.10} {0.05} {2.9*[10^(-2)]} {3} {0.10} {0.15} {2.6*[10^(-1)]} {4} {0.12} {0.12} {?????????????} so overall oreder is 4 or ...
*July 20, 2011 by j*

**Math**

If the measures of the angles in a triangle are in the ration 3:4:5, the measure of the exterior angle of the triangle can not be a) 120D b)165D c)105D d)135D b 165 With the triangle ratio of 3:4:5 the equation can be made: 3x + 4x + 5x = 180 x = 15 The angels of the triangle ...
*February 23, 2007 by James*

**Hyperboles**

My lawyer is so smart the trial ended 10 minutes after he started. My lawyer is so smart he makes an owl look dumb. He is so handsome that whoever looks at him faints. He is so handsome that girls fell in love with him at first sight. Okay, can someone check my hyperboles to ...
*January 15, 2009 by Larry*

**alg2/trig**

I got this question wrong on my test, and I have to correct it :/ How many permutations are there of all the letters in the word "TEXAS" ? The answer to this part is 120, but I have no idea on how to solve the second part without having to write it all down. *How many of these...
*April 1, 2009 by Chris*

**Chemistry**

Hi Can someone please help me undersand how to get the answer to this question A 15.0 mL solution of 0.050 mol/L AgNO3 was titrated with 0.0250 mol/L NaBr in the cell SCE || titrated solution | Ag(s) Find the cell voltage for 10.0 mL of titrant added. (a) -0.0312 V (b) 0.194 V...
*April 26, 2010 by James*

**Statistics**

A football team’s coach predicts that his team will win 9 out of 10, or 90%, of its games. Which method did he most likely use to make this prediction my answer to this is relative frequency is this correct equally likely outcomes intuition law of large numbers probability ...
*June 15, 2010 by Jacob*

**English**

in the Tarzan the terrible chapter1 in this unit, tarzan is most concerned with a finding food to survice b getting to know the man-thing c rescuing his wife, jane i think a and b are correct he and the man-thing killed the lion and ate deer together i don' know which one is ...
*July 7, 2010 by Rainbow*

**English**

. Identify which one of the following sentences is missing punctuation. Please correct the error and explain why the correction is necessary. a. I woke up when the book slipped from my lap and landed on my foot. b. After the book slid from my lap and landed on my foot I ...
*October 15, 2011 by Aran*

**Spelling**

Hello, my daughter has to alphabetize a list of words that also include multiple words. Example: anyway any way everyone every one already all ready I think the "one" word words should go first, followed by the "two" word words. Is this correct? Thanks!
*January 17, 2012 by Maggie*

**chemistry**

Which of the following equations represents a reaction for which the delta H can be called a standard enthalpy of formation, delta Hf? a) FeO(s) + CO2(g) -> FeCO3(s) b) 1/2 N2(g) + 2 O(g) -> NO2(g) c) 2 Na(s) + Cl2(g) -> 2 NaCl(s) d) Ba(s) + N2(g) + 3 O2(g) -> Ba(...
*January 23, 2012 by timmy*

**English**

I have write a evaluation essay on the movie Troop 1500. So my thesis is -Taking daughters to see their mothers in jail should be a program of it's own.- I don't know if my topic sentence is correct: One reason a program should be made separate for daughters who want to ...
*February 14, 2012 by Taylor*

**English**

A: Seho, what are you doing? B: Hi, Inho. I'm doing my math homework. A: Hurry up! We have to play soccer in the playground. B: We have a soccer match on Thursday. Today is Wednesday. A: No, it's Thursday today. Come here quickly. B: Sorry. I'll be there. Wait for me. (Would ...
*September 3, 2012 by rfvv*

**english**

Identify which one of the following sentences is missing punctuation. Please correct the error and explain why the correction is necessary. a. I woke up when the book slipped from my lap and landed on my foot. b. After the book slid from my lap and landed on my foot I realized...
*September 24, 2012 by lisa*

**Chem II**

I am stuck on what to do for my homework assignment. We were told to come up with seven different statements for: Write down as many correct, distinct, and relevant facts you can about: BrCl3 (g) + Cl2 (l) > BrCl5 (g) Kp = 7.82 * 10−6 When there is originally 0.215 ...
*October 2, 2012 by Kia*

**english**

Identify which one of the following sentences is missing punctuation. Please correct the error and explain why the correction is necessary a. I woke up when the book slipped from my lap and landed on my foot. b. After the book slid from my lap and landed on my foot I realized ...
*October 5, 2012 by cathy*

**Statistics**

I need help with this please. A researcher is designing a research study. He hopes to show that the results of an experiment are statistically significant. What size of p value would take? a) Large value of p b) Small value of p c) The size of the p value does not affect the ...
*July 20, 2013 by Andrew*

**physics**

A projectile of mass 1.000 kg is shot straight up with an initial speed of 23.0 m/s. (a) How high would it go if there were no air resistance? i got 26.99, which is correct (b) If the projectile rises to a maximum height of only 17.8 m, determine the magnitude of the average ...
*June 21, 2015 by Lola*

**Algebra**

Need to get these checked-- 33. What is the area of a square with the dimension of 1 + sqrt of 2? 9.64 34. A matrix with 5 columns and six rows added to another matrix with 5 columns and 6 rows would result in a matrix with: a. 12 columns and 10 rows b. 5 columns and 6 rows c...
*June 18, 2010 by mysterychicken*

**Did i do this right??? STATS**

3. In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least three will have this ...
*October 26, 2011 by Jen*

**Calculus**

find derivitive of 1/square root of x 1/square root of x = x^(-1/2) The derivative is -1/2 x^(-3/2) can you keep going on the problem to not have negative exponents? You can also use that the derivative of 1/f(x) is given by: -f'(x)/[f(x)]^2 If you take f(x) = sqrt(x) and use ...
*January 18, 2007 by Linds*

**english**

I having problems these sentences on sentence fragments and run-on sentences, including both fused sentences and comma splices and how to revise them and explain the choices that have been made. This is the sentence: When I was in high school I never thought that I would ever ...
*December 19, 2011 by aran *

**Physics**

Please help A fox sees a piece of carrion being thrown from a hawk's nest and rushes to snatch it. The nest is 14.0 m high and the carrion is thrown with a horizontal velocity of 1.5m/s. The fox is 7.0 m from the base of the tree. What is the magnitude of the fox's average ...
*September 22, 2010 by Joelle*

**English**

1. Choose two of the scientists you read about in the Stories of Scientists unit. Compare and contrast these scientists. Answer this question in no fewer than two paragraphs. Be sure to include specific details about each scientist’s life, career, and personality in your ...
*February 12, 2014 by Chad Bester*

**SENTENCE**

which is correct? Dallas-based (or)Dallas-based-company The case against the Dallas based companywas setteled in Seattle. You don't need a hyphen between based and company.
*October 18, 2006 by Kourtney*

**Biology**

Tell what the function of lipids do in a cell. Is the correct answer: lipids function in a cell is to provide energy, act as structural components in a cell , and can help provide hormones.
*February 23, 2008 by Bethany*

**Chemistry**

Tell what the function of lipids do in a cell. Is the correct answer: lipids function in a cell is to provide energy, act as structural components in a cell , and can help provide hormones
*February 23, 2008 by Bethany*

**English expression**

1. Listening to the dialogue, write a number in order. 2. Listening to the dialogue, write the numbers in order. Which one is correct? There are 7 scrambled sentences in a dialogue in the box.
*March 13, 2008 by John*

**linear programming**

For the linear program Max 2A + 7B s.t. A + B greater than or equal to 12 2A + 2 B less than or equal too 26 B greater than or equal to 1 A, B greater than or equal to Which of the following would be found in the correct standard form? A. YES B. NO A + B - S1 = 12 2A + 2B - S2...
*July 26, 2010 by Donna*

**math**

The ratio of dimes to nickels in jan's change box is 2/3. jan has 75 cents in nickles. how many nickes does jan have? 15? would that be correct? and would she have 10 dimes?
*March 9, 2011 by jill*

**Math**

Explain how to do this with steps please. 1. Simplify cos(x-y)+cos(x+y)/cosx I did some of these so far, don't know if it is correct. Formula: cosxcosy= cos(x+y)+cos(x-y)/2 cos(x-y)+cos(x+y)/cosx =cosxcosy/2cosx
*January 26, 2012 by Jake*

**tax**

For the deduction of self-employment taxes, which of the following statements is correct? A. They are taken as an itemized deduction on Schedule A B. They are not deductible C. They are 80% deductible as a for AGI deduction D. They are 50% deductible as a for AGI deduction is ...
*March 7, 2012 by Andy*

**math**

the question is a stock gained 2 7/8 points, lost 1 3/4 points and then gained 1/2 point and then lost 5 points. What was the total change in the stock price? I got a loss of = -3 3/8 is this correct
*October 14, 2012 by b6*

**Please help Math**

Determine the correct formula for the measures of all angles coterminal with the angle: 140° a. 140° + (360° + n) b. 140° + n(360°) c. 360° + n(180°) d. 360° + (180° + n)
*May 21, 2013 by Holly*

**Repost - Geometry question**

"please help me" posted this earlier: If m angle sign 1=37 degrees what is m angle sign 4 My answer: 43 degrees which is wrong. Correct answer: 37 degrees I don't understand how to do this.
*June 5, 2014 by Writeacher*

**English**

If it rains we shall postpone the picnic. If it rains is a dependent clause we shall postpone the picnic is independent. I say to put comma between rains and we, Correct?
*November 4, 2014 by Anonymous*

**CALCULUS**

Rate of Change You are given the dollar value of a product in 2008 and the rate at which the value of the product is expected to change the nest 5 years. write a linear equation that gives the dollar value V of the product in terms of the yeart.(let t= 0 represents 2000.) 2008...
*September 26, 2009 by kim*

**Calculus**

A ball is dropped from the top of a building. The height, , of the ball above the ground (in feet) is given as a function of time, , (in seconds) by y = 1640 - 16t^2 y'= -32t When does the ball hit the ground, and how fast is it going at that time? Give your answer in feet ...
*November 14, 2010 by Ashley*

**Calculus **

Water is draining at a rate of 2 cubic feet per minute from the bottom of a conically shaped storage tank of overall height 6 feet and radius 2 feet . How fast is the height of water in the tank changing when 8 cubic feet of water remain the the tank? Include appropraite units...
*February 13, 2013 by Vivi*

**Elasticity (Physics)**

A tunnel of length L=150m, height H=7.2m, and width w=5.8m (with a flat roof) is to be constructed at a distance d=60m beneath the ground. The tunnel roof is be entirely supported by square steel columns, each with a cross sectional area of 960 cm^2. The mass of 1.0 cm^3 of ...
*September 9, 2009 by David*

**English**

Stressed and Unstressed Syllables. Hello, I've seen the previous threads about this, I'm doing the same exercise, but there are no convincing answers anywhere... So there are the instructions : Task 4 – Say each of the following sentences and then underline the stressed ...
*January 25, 2011 by Leeroy*

**calculus**

Suppose lighthouse A is located at the origin and lighthouse B is located at coordinates (0,6). The captain of a ship has determined that the ship's distance from lighthouse A is 2 and its distance from lighthouse B is 5. What are the possible coordinates for the ship?
*April 2, 2012 by Tiffany *

**calculus**

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^{1.4}=C where C is a constant. Suppose that at a certain instant the volume is 340 cubic centimeters and the pressure is 87 kPa and is decreasing at a ...
*October 22, 2009 by claudia*

**calculus**

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^{1.4}=C where C is a constant. Suppose that at a certain instant the volume is 380 cubic centimeters and the pressure is 89 kPa and is decreasing at a ...
*April 1, 2010 by ujkk*

**calculus**

Choice 1: Payments of $ 2600 now, $3000 a year from now, and $3450 two years from now. Choice 2: Three yearly payments of $ 3000 starting now. Interest is compounded continuously. (a) If the interest rate on savings were 4.76 %,which would you prefer? (b) What is the interest ...
*September 16, 2010 by nic*

**calculus**

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^{1.4}=C where C is a constant. Suppose that at a certain instant the volume is 580 cubic centimeters, and the pressure is 75 kPa and is decreasing at a ...
*October 10, 2010 by rg*

**Calculus**

Using 3(x-3)(x^2-6x+23)^1/2, as the chain rule differentiation of f(x)=(x^2-6x+23). Please explain how I find the general solution to the differential equation dy/dx= 2/27(x-3)SQUARE ROOT BEGINS (x^2-6x+23)/y SQUARE ROOT ENDS (y>0). In implicit form I have an answer of 18*y...
*May 12, 2011 by Tony*

**Pre-Calculus**

A machine worth $ 11000 new and having a scrap value of $ 10995.6 is to be depreciated over a 4.4 -year life. Find the function that describes straight line depreciation for this situation. At what time will the machine be worth $ 10997.8 according to this model? So I know ...
*September 28, 2013 by Ann*

**English**

Dangling modifiers - are these right? Second entry is my corrected version. 1. In 1883, massive destruction was caused by the eruption of the volcano Krakatoa, an event recently examined in the book Krakatoa: The Day the World Exploded. In 1883, the eruption of the volcano ...
*September 4, 2010 by Shawn*

**accounting**

CAN SOMEONE TELL ME HOW MATERIAL AND CONVERSION IS BROKEN UP IN THIS PROBLEM thanks so much PROBLEM 1 Estrella Company, a company that mass produces a widely used pain medication, uses three processes: mixing, tableting, and bottling. October’s cost and production data for the...
*November 7, 2008 by amy*

**English**

I need to match a sentence from group A with one from group B that is in the same tense. Group A. 1.I've been to several countries. 2.I've been working here for 10 years. 3.She was walking down the road. Group B. A.They were reading all afternoon. B.Has he been drinking again...
*December 21, 2007 by Antonio*

**chemistry**

If you were to dissolve 14.00 grams of salicylic acid in enough water to make 400.00 mL of solution, what is the molarity of the final solution? i did M = moles/L so .1014 mol/.4000L = .2535 M is this correct?? The next part of the question is Now you take 50.00 mL of this ...
*September 6, 2009 by jake*

**Physics**

Question: The amount of internal energy needed to raise the temperature of .25 kg of water by 0.2 degrees Celsius is 209.3 J. How fast must a 0.25 kg baseball travel in order for its kinetic energy to equal this internal energy? KE = (.5)(m)(v^2) 209.3 J = (.5)(.25kg)(v^2) ...
*February 15, 2010 by mike*

**intro to economics **

a draft system, whether professional sports or the military, enable those who are hiring to A.avoid paying a living wage B.produce what they produce at a lower cost C.educe the cost of labor D.transfer part of the cost of labor to someone other than themselves isnt B the ...
*October 11, 2010 by Brittany*

**Chemistry(Please check)**

1) The reaction A + B + C = products has a rate law rate = k times A times C squared. Which of the following will result in an increase in the rate constant for the reaction? #1 - increasing the temperature #2 - adding a catalyst #3 - doubling the concentration of reactant C I...
*February 19, 2012 by Hannah*

**Chemistry**

If someone could please be kind enough to see me through this problem? Calculate the value of Kp for the equation C(s) + CO2(g) <--> 2CO(g) Kp? Given that at a certain temperature.. C(s) + 2H2O(g) <--> CO2(g) + 2H2(g) Kp1 = 3.03 and H2(g) + CO2(g) <--> H2O(g...
*March 5, 2012 by Tracy*

**Intermediate Algebra**

A school designer wants to create a whiteboard with the optional dimensions to enhance learning. It is determinedd that if one side of the whiteboard is x+2y inches theother side should be x^2+6xy-5y^2 inches. Write an algebraic expression for the area of such a whiteboard, ...
*June 8, 2012 by ladybug*

**statistics**

A brand has 50% recognition rate. Assume the owner of the brand wants to verify that rate by beginning with a small sample of 6 randomly selected customers, what is the probability that exactly 5 of the selected consumers recognize the brand name? I need the correct formula in...
*February 20, 2015 by slomomo*

**Help with Psychology**

To help Karen overcome her fear of thunderstorms, a behavior therapist asks her to relax and imagine watching light rain with distant thunder. The therapist is using... a) client-centered therapy b) cognitive therapy c) systematic desensitization d) aversive conditioning ** ...
*April 17, 2015 by Henry*

**design**

1. A person with a square face shape and a rectangle body shape has what bodyline? A. Straight B. Sharp-straight.(yes) C. Soft-straight D. Soft-straight II 2. A suit with rounded lapels and a shawl collar would work best for a woman with a _______ bodyline. A. straight B. soft...
*July 27, 2012 by need to check my answers*

**Health questions**

We both asked these questions yesterday but we are both confused. 1.Giardiaqsis is a communicable illness transmitted: A. through direct and indirect contact with infected fecal material. (or) B. by touching the moist lining of the eyes and nose. 2. Lyme disease is caused by: ...
*April 16, 2007 by Davonna and Dewey*

**ALGEBRA**

Find the range and the variance (correct to one decimal place). 77, 92, 93, 93, 98 (a) Find the range. (b) Find the variance.
*June 1, 2012 by Urgen please help*

**to: bobpursley**

wait...so you were talking about this question: (c^2/3d^-1)^-2 I thought you were talking about this question: (2m^4n/3m^-1n^3)^-2 so is my answer to this question (2m^4n/3m^-1n^3)^-2 correct?
*September 8, 2013 by Sophie*

**Chemistry-is this correct?**

Calculate the pH and identify as acidic, basic,or neutral 1. H= 1.10 * 10^-11 M Answer: pH=11, basic 2. H= 2.61 * 10^-2 M Answer: pH:1.58, acidic 3. OH= 4.0 * 10^-9 M pH: 8.39, basic
*April 29, 2015 by Clare*