# algebra II-URGENT

43,917 results, page 22

### Chemistry URGENT

I am not good with math problems. I need help with these two problems. I'm not sure what equations to use. please help. A student heated a hydrated salt sample with an initial mass of 4.9702 g. After the first heating, the mass had decreased to 3.0662g. 1. if the sample was ...

### Social Studies urgent

All of these were inspirations for 15th Century European exploration of the Western Hemisphere EXCEPT A) the desire to spread Christianity B) the desire to conquer India and China C) the desire to establish new trade routes to Asia D) to search for basic resources and land ...

### math

You randomly draw letter tiles from a bag containing the letters from the word INDEPENDENT. 1. You randomly draw an N. Then, without replacing the first letter, you pick a D. Tell whether the events are independent or dependent. Then find the probability that both events occur...

### Urgent Spanish Check

A) Read the following sentence and choose which word is not correct in the context of the sentence. 1) La examen es difícil. La? 2) El árbol es verdes. el? B) The following sentence is written in singular form. Read the sentence, then choose the correct plural form. 1) Nicol...

### Math (algebra)

Hi could you please help me with this algebra question. A rectangle has one corner on the graph of y=36-x^2, another at the origin, a 3rd on the positive y-axis, and the fourth on the positive x-axis. Express the area A of the rectangle as a function of x. What is the domain ...

### ECON - urgent please help

demand for sulfur dioxide by coal-fired electricity electricity producers is: Firm A's demand: P= 1,000 - 80 Q Firm b's demand: P= 1,000 - 20 Q where Q is quantity of sulfur dioxide measured in thousands of tons, and P is price per ton of sulfur dioxide. a)With the market cap ...

### help!!!Urgent english

I have a question.If you have employment,are you looking for work? Pleaase answer quicky........It is due on 22/06/05. Sandy You can have employment but still be looking for another job or advancement in the same area. On the other hand, you can be satisfied with your ...

### MAT 116 (algebra)

Please help not understanding this question. If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Make up your own numbers in an example and then explain your answer as though you were talking to ...

### math urgent help needed!!

I am so sorry but this homework is due in half an hour. Please help me! A smokestack deposits soot on the ground with a concentration inversely proportional to the square of the distance from the stack. With two smokestacks 20 miles apart, the concentration of the combined ...

### soial studies-URGENT!!NEED BY 8:25 A.M. TOMORROW!

Who was an important person in Christianity,islam and judaism, where were they started and when were they discovered? THANX!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :) Type in these different religions in a google search or Wikipedia, find the name of a person that seems important, then...

### physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!

A gunman standing on a sloping ground fires up the slope. The initial speed of the bullet is v0= 340 m/s. The slope has an angle α= 12 degrees from the horizontal, and the gun points at an angle θ from the horizontal. The gravitational acceleration is g=10 m/s2. (a) ...

### Physics pls anyone can help me? its urgent

When the sun is in the zenith and the sky is perfectly clear, the solar power we receive on the surface of the earth is roughly 1 kW per square meter (on a horizontal surface that is normal to the direction of the sun). Calculate the average solar power per square meter (in ...

### Physics pls anyone can help me? its urgent

When the sun is in the zenith and the sky is perfectly clear, the solar power we receive on the surface of the earth is roughly 1 kW per square meter (on a horizontal surface that is normal to the direction of the sun). Calculate the average solar power per square meter (in ...

### algebra 1

Algebra 1 - bobpursley, Monday, January 3, 2011 at 4:13pm didn't I just give you the three steps? What did you not understand about those steps? Algebra 1 - Erudita, Monday, January 3, 2011 at 4:34pm subtract x from each side, then subtract 9 from each side. Finally, divide ...

### science-this is urgent, plz help me! its easy too.

we did a lab on chemical change, where we had to see how a chemical change affcts mass. so we measure the mass of 20ml of copper solution, and 2cm(cubed) of steel wool, and then we mixed them into a flask. soon the steel wool turned rusy, and broke apart. and the duofilm(which...

### Physics Urgent please help

A spring of negligible mass, spring constant k = 82 N/m, and natural length l = 1.2 m is hanging vertically. This is shown in the left side where the spring is neither stretched nor compressed. In the central one, a block of mass M = 5 kg is attached to the free end. When ...

### social studies

1. Explain two ways in which sectionalism caused conflict or tension in the United States during the early 1800s. Then explain how sectionalism affects economics and politics in the United States today. 2. which was more of a priority in presindents lincolns reconstruction ...

### Algebra

I have one more question I need to ask about algebra, this one is a perform the indicated operation question. 4x 5x ----- - ---- x^2-9 x^2+4x-+3 I am really confused on the -+3 part, I don't know if my teacher made a typo or what, because without the - in that part it would be...

### algebra 1

Could someone check these? basic honors algebra 1 question of eight students in a class three will be chosen for student government positions. what is the number of permutations of those eight students to hold the three different positions? 24** 336 112 56

### English

Can someone please check my answers for this? Thanks! 1. What is the latter tone of "The Morning of June 28, 1949 and 'The Lottery'"? a. offended and angry b. taken aback and sarcastic*** c. surprised and confused 2. Which of the following words is an example of an absolute ...

### Accounting urgent

Foster Glass Company purchased a fax machine on July 1, 2007 for $1,800. The fax machine had an estimated useful life of three years and a salvage value of $300. Assume Foster uses the double-declining balance (DDB) depreciation method. Foster decided to replace its fax ...

### pre algebra

my grade is 83.17 in pre algebra in college, but the final exam is worth 300 points. If I got a B or B- or a C on the final, what would my grade be overall?

### pre-algebra

Use algebra tiles to find the difference. Let one white tile equal +1and one black tile equal -1.6-(-9) Thanks

### MATH - URGENT!!!

6 people are sitting around a table. Let x be the number of people sitting next to at least one woman and y be the number of people sitting next to at least one man. How many possible values of the ordered pair (x,y) are there? (For example, (6,0) is the pair if all 6 people ...

### physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!

A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a uniform disk of mass 210 kg and radius 110 cm (consider the metal poles to have a negligible mass compared to the merry-go-round). The poles near ...

### help...urgent..calculus

Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be p=280-0.4x. It also determine that the total cost of producing x smartphones is given by c(x)=5000+0.6x^2 . a. Find the total revenue, R(x). b. Find the ...

### Algebra

A Car is moving at an average speed of 60 km/h. Find the algebraic expression for the kilometer it would travel in y minutes. Comment on this question: Hello, for me, algebra is one of the hardest subjects at school. Most of the time I read a question over and over again but I...

### Physics (urgent please)

Two parallel wires are carrying 5A and are separated by 2.0 m. if the currents are in opposite directions, what is the magnitude of the magnetic field halfway between them? Someone please help as I can't figure out the question. Thanks, They are asking for the field between ...

### Chemistry (equlibrium direction) urgent

Consider the endothermic reaction 2 NO(g) <-> N2(g) + O2(g) -If I decrease the volume of the vessel and increasing the total pressure in the vessel, what direction will the equilibrium will shift? (left/right) (I know that decreasing the volume would shift to produce ...

### URGENT! Physics

A boy shoves his stuffed toy zebra down a friction-less chute, starting at a height of 1.07 m above the bottom of the chute and with an initial speed of 1.87 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding along a horizontal surface ...

### Physics/Chemistry HELP!! URGENT!!

Arsenic in geomedia contaminates an aquifer by naturally occurring geological processes. The aquifer has a bulk density of 1.55 g/cm3 and a particle density of 2.63 g/cm3. The distribution coefficient, Kd value is 0.0370 L/kg. The initial concentration at the source is 40.0...

### MATH URGENT!!!!

An investigator was interested in studying the effect of taking a course in child development on attitudes toward childrearing. At the end of the semester, the researcher distributed a questionnaire to students who had taken the child development course. Questionnaires were ...

### Biology - URGENT Enzyme Lab

Did a catalase producing hydrogen peroxide lab, used manganese dioxide, fresh frozen liver, potato, ice, fine clean sand, etc. Basically just added hydrogen peroxide to the catalysts under diff conditions and stuff. Just don't get this question which is : how do you account ...

### help...urgent..calculus..please show tthe way to s

Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be p=280-0.4x. It also determine that the total cost of producing x smartphones is given by c(x)=5000+0.6x^2 . a. Find the total revenue, R(x). b. Find the ...

### algebra

In algebra does a negative and a negative equal a positive?

### Algebra

how to solve algebra equation √(5x^2 )+7x+2-√(4x^2+7x+18) =x-4

### FRENCH! HELP!

so i have this french test tomorrow on imparitive, and subjonctif. i have had a lot of trouble remembering them, and telling them apart. can anyone help!? that would be fantastic! thank you so much! its urgent! Imperative (note spelling) means giving a command or an order. The...

### English

These are the very last sentences. I really hope you can check them. It is really urgent. Thank you in advance. 1) Bitzer embodies the word of facts, in which Mr. Gradgrind believes. Society was regarded as an evil force, which prevented men from behaving naturally. 2) As for ...

### English

I forgot to include the following sentences. They are really urgent. 1)He hadn't read a book since he was a boy/ "by the time he was a boy he hadn't read a book (is a mistake?) 2) She told me she had dumped him/broken/finished with him. (are they all possible???) 3) “Lots of...

### Algebra

There are 37 students in an algebra class. there are 9 more girls than boys. how many boys and how many girls are in the class? I have to use systems of equations to solve.

### pre-algebra

Use algebra tiles to find the difference. Let one white tile equal +1 and one black tile equal –1.

### MATH urgent!!!

My problem: From 1992 to 1996, the annual income for all the private golf courses in the United States can be approximated by the model: I=59t^2+2254, where I is the annual income in millions of dollars and t is the year, with t=0 corresponding to 1990. 1. In which year did ...

### Physics - URGENT

Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.70 ✕ 105 Pa and the pipe radius is 2.50 cm. At the higher point located at y = 2.50 m, the pressure is 1.21 ✕ 105 Pa and the pipe radius ...

### math

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 210 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...

### Law - please help... urgent

in as law if there is a question on alternative dispute resolution do i decribe negotiation mediation conciliation mini trials AND arbitration or just the first four? It depends on the alternative dispute contract that was agreed on by the parties. It can be any of the above, ...

### urgent chem help ( dr bob plz)

A particular household ammonia solution (d= 0.97g/mL) is 6.8% NH3 by mass. How many milliliters of this solution should be diluted with water to produce 650 mL of a solution with pH = 11.50? ============================ first i did was ph = 11.50 PH= 14-11.50 = 2.5 10^-2.5 = 0...

### Algebra Repost

Which equation could be used to find the dimensions of a room that has a length of 8 feet longer than the width, x, and has an area of 240 square feet? (A) x squared - 8x + 240 = 0 (B) 2x(2x-8x+16)=240 (C) x squared + 8x + 240 = 0 (D) x squared + 8x - 240 = 0 I got (x)(8x)=240...

### physics(HELP IT'S URGENT)

A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...

### PHYSICS URGENT HELP

A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...

### English

Can someone check my post? It's urgent. Thank you very much in advance! I like the urban look the most/the worst because it is so cool. These clothes are baggy and comfortable enough to wear anywhere/for work/for school/at parties/to go out. I like to wear casual clothes like ...

### Test tomm. Need help *Urgent*

Sorry for posting so many topics, but I really need help on this stuff. I recently lost my work I did on a separate sheet from 2 weeks ago, and now I can't seem to find the answer again. a fair six-sided die is tossed seven times in a row. A) What is the probability that a "4...

### Algebra

In my Algebra class I am working with rational expression. I know it is important to understand the differnce between a factor and a term of an expression. Can someone give me the definition for both and explain to me the difference between the two? Thanks. My Thomas book says...

### Pre-Algebra Math

A bank teller is counting his money and notices that he has an equal number of tens and twenties. He also had $147 in other bills. If the total value of the bills he has is $1,167, how many tens and twenties does he have What would be the equation in algebra?

### Math

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 110 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...

### chemistry ap ...urgent! please help me!

The measurement of pH using a glass electrode obeys the Nernst equation. The typical response of a pH meter at 25.00 degrees C is given by the equation: E(measured)= E(ref) +.591pH where ref contains the potential of the reference electrode and all other potentials that arise ...

### Calculus (urgent help)

consider the function f that is continuous on the interval [-5,5] and for which the definite integral 0(bottom of integral sign) to 5(top of integral sign) of f(x)dx=4. Use the properties of the definite integral to evaluate each integral: (a) definite integral from 0(on the ...

### Algebra

The state of Texas has anarea of approximately 266,806 squaremiles. Its area is approximately 220times the area of the state of RhodeIsland. What is the area of Rhode Island? How would you put this into a algebra expession as well?

### Algebra

89, 88, 78, 95, 92 Sadye has the Algebra test scores shown. If her goal is to have a test average of 90 or higher what is the lowest score she can make on her next test and still achieve her goal? Note: scores are not rounded.

### algebra

O.k. I'm 42 trying to help my nephew with algebra and lets just say it's been awhile.... Total money $ 101.25 45 more dimes than nickels 3 times as many quarters as dimes. How many nickels, dimes & quarters?

### help-grammar

can someone correct these sentences...it is urgent!thanx how much targets had company identified? why does M&A haveing slow progress? I am not sure what you are trying to say; however, I have tried to make these make sense. How many targets had the company identified? Why is M...

### Calculus (urgent!!)

A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the particle comes to a ...

### Accounting urgent

Prepare the journal entries to record the following transactions on Panther Company’s books using a perpetual inventory system. (For multiple debit/credit entries, list accounts in order of magnitude.) (a) On March 2 Panther Company sold $853,700 of merchandise to Eagle ...

### English

The sentence "Like a boil that can never be cured as long as it is covered up but must be opened with all its pus-flowing ugliness to the natural medicines of air and light, injustice must likewise be exposed" communicates a(n) __________ tone. A. Urgent B. Matter of fact C. ...

### math(urgent)

During a Merdeka Day celebration,a furniture company marked down the price of a queen size bed by 25%,selling it for $1200. At this reduced selling price,they made a markup of 10% on the selling price. a) find the regular price of bed before marked down. b) find the cost of ...

### Calculus - HELP URGENT PLEASE

Consider a lake of constant volume 12200 km^3, which at time t contains an amount y(t) tons of pollutant evenly distributed throughout the lake with a concentration y(t)/12200 tons/km^3. assume that fresh water enters the lake at a rate of 67.1 km^3/yr, and that water leaves ...

### MA

a) find the equation of AB, the perpindicular bisector of the line joining the points P(-3,1) and Q(1,9) (line AB intersects the point at midway of PQ) b) C is the centre of a circle passing through P and Q. given that QC is parralel to the yaxis, determine theequation of the ...

### Microeconomics help please (urgent)

True or False? Explain your reasoning. a. The short-run average total cost can never be less than the long-run average total cost. b. The short-run average variable cost can never be less than the long-run average total cost. c. In the long run, choosing a higher level of ...

### Algebra

I have a few questions on my Pre- Algebra Pre- test. I am in 7th grade. Anyone willing to help me for a few questions for 5-10 minutes?

### Physics - URGENT

A small block of mass 5 kg initially rests on a track at the bottom of a circular, vertical loop-the-loop, which has a radius of 0.8 m. The surface contact between the block and the loop is frictionless. A bullet of mass 0.7 kg strikes the block horizontally with initial speed...

### MATH URGENT!!!!

With the given model: h=-0.045d^2+2d where h is the height of the ball from the ground(in yards) and d is the horizontal distance of the ball(in yards) from its starting point. A.)Pat is standing on the 17-yard line when the football passes over his head. How high up is the ...

### Algebra

Algebra Question: A team wins 15 of their first 20 games. If they win only half the time from now on, how many games will they have to play in order to win 60% of their total games? I have it figured out manually, but cant get it in equation form.

### UNIT FRACTIONS URGENT~!

I have been stuck on this for hours and feel completely stupid, could someone help? Read the story problem given below. Identify what unit conversions must be made and show your unit fractions in making the conversions. Make the required conversions and round results ...

### Urgent =Math

17. Tell whether this survey describes a good sample and if so, name the method of sampling used. Every sixth person leaving a restaurant is surveyed to determine their favorite food from the menu. yes, random******** yes, systematic yes, stratified not a good sample 18.Tell ...

### maths- urgent

a) Forming the smallest six digit number with different digits. Reverse the number and add the sum of the two numbers. b)Forming the smallest five digit number with different digits. Reverse the number and add the sum of the two numbers.

### VERY URGENT MATH~!!!!!!!!

1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no solutions infinitely many solutions 4. 4(x...

### Calculus (urgent!!)

A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the particle comes to a ...

### pre-algebra

write an inequality for the sentence. The total t is greater than five. Well your answer is going to be T and the sign for greater than is simply >. So the answer would be T > 5 ok again my name is above. i was just wondering what pre-algebra was? i mean i take the ...

### algebra 2

i need help with my algebra 2 homework, the section is called using matrices to represent data. here is one of the problems: -1/2A+(B-A) A=[7 3 -1 5] [-2 8 0 -4] and B= [6 0 11 -3] [-5 2 -8 9] i don't know how to do this problem and the book doesn't have a problem like this ...

### Math

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 110 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she ...

### Algebra

Does anyone have the answers to Unit 2 Lesson 8 Unit test on Expressions, Equations, and Inequalities. There are a total of 19 questions. I did this wrong the first time i dont want to get it wrong the second time. Please i need this turned in before the day is out today. This...

### Calculus Help Please Urgent!!!

A piece of wire 14 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral triangle. (a) How much wire should be used for the square in order to maximize the total area? 14 m this one I got right (b) How much wire should be used...

### maths

a) find the equation of AB, the perpindicular bisector of the line joining the points P(-3,1) and Q(1,9) (line AB intersects the point at midway of PQ) b) C is the centre of a circle passing through P and Q. given that QC is parralel to the yaxis, determine theequation of the ...

### English urgent please:)

I wrote the thesis but wat do i make the conclusion be...:( This is my thesis: Aldous Huxley's Brave NEw World and Emily Bronte's, "wuthring heights" describe a major struggle of being an individual again society . in Aldous Huxley's novel "Brave New World, the main story ...

### Math Algebra

k so when i posted this earlier, i didn't understand how to do it the way that writeacher showed me so can someone else help, thanks Max spends 60% of his pay on car expenses and 12% on fast food. If Max spends a total of $518.40 per month, what is his monthly pay? (let x be ...

### Stats

On her first test in algebra, Mary earned a score of 75, and she made an 85 on her first psychology test. If the average score on the algebra test was a 68, with s=7, and the average on the psychology test was 91, with s=6, is Mary doing better in psychology or algebra. Why?

### Chemistry VERY URGENT PLEASE

A) NaOH(s) > NaOH(aq) B) NaOH(s) + HCl(aq) > NaCl(aq) + H2O(l) C) NaOH(aq) + HCl(aq) > NaCl(aq) + H2O(l) Examine the 3 reaction equations, and determine the relationship between them. Demonstrate this relationship by combining the equations in a manner consistent with...

### Calculus Help Please Urgent!!!

a) Estimate the area under the graph of f(x)=7+4x^2 from x=-1 to x=2 using three rectangles and right endpoints. R3= ??? Then improve your estimate by using six rectangles. R6= ??? Sketch the curve and the approximating rectangles for R3 and R6? b) Repeat part (a) using left ...

### math URGENT PLEASE HELP

can you please explain this question to me for part b i get t=0.7 by trial and error and 0.6 percent of the population but im sure theres a more exact way to do it (a) A chemical process produces NaCI at the rate 3.Jtgrams per minute. (i) What is the rate of production 4 ...

### Math

A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. A) What is the probability of selecting a purple marble and then a white marble? B) What is the probability of selecting ...

### Physics but algebra problem

Having issue with algebra. 89N=ma 99N=m2a would you do something like plugging one into the other such as. a=89/m 99N=99/(2(89/m) prob is when i get a fraction in the denominator i get confused can someone help me. I'm trying to find the mass. Which i will then convert into ...

### Algebra

I need some help with algebra as I'm confused as to how to solve them. Find the common difference d and the value of a1 using the information given. 1. a6= 5/4, a8= 9/4 Evaluate each sum. 2. E like symbol that has a 29 on the top. On the bottom n=1 and to the right (4n-1) Find...

### Physics Urgent please help

A small sphere of mass m and charge +q with zero velocity falls under the influence of gravity (acceleration = g from height h onto an infinite uniformly charged plane with positive charge density sigma as shown below. What will the velocity of the sphere be when it hits the ...

### Physics Urgent please help

A small sphere of mass m and charge +q with zero velocity falls under the influence of gravity (acceleration = g from height h onto an infinite uniformly charged plane with positive charge density sigma as shown below. What will the velocity of the sphere be when it hits the ...

### economics. urgent

Assuming that shoes have a world price of US$60 a pair, that the EU has a 45% ad valorem import duty on footwear which applies to all types of footwear and an Italian company is proposing a project to substitute 150,000 pairs of imported shoes by domestically produced shoes. ...

### pre-algebra(algebra)

I'm not sure if I have the correct answer to this problem...All I have to do is use the Distributive Property to write each expression as an equivalent algebraic expression. Here is the problem: b(c+3d) Is the answer: bc+3bd

### literature

plz to anyone who has finished the lit book with 7 tests answer back need help. with exms like pair of silk stockings, pauls case,goodman brown, call of the wild PLZZZZZZZ help me it has been 15yrs http://www.trainingner.com/does-anyone-have-the-answers-to-the-penn-foster-...

### ALGEBRA

can you help me with this. d don't get it at all :( let n be the number used for the given number puzzle. use algebra to show how the puzzle works. 1. pick a number 2. subtract 9 3. multiply by 6 4. divide by 3 5. add 18 6. subtract twice your original number You will always ...

### ALG 2! plz help urgent!!

1.)Four times a certain number is the same as the number increased by 78. Find the number. 2.)A blue bike is $14 less than a red bike. The sum of their prices is $300. How much is the red bike? 3.)Alex is six years older than his sister, Emma. The sum of their ages is 32. How ...

### algebra

How do I do substitution equations out of the equations in the system, pick the one that has the least amount of funky numbers. then make that equation equal to either x or y(or any other variable dependin on what kind of systems youre doing, usually just x and y in algebra 1...