Tuesday

April 28, 2015

April 28, 2015

Number of results: 39,500

**calculus**

how would you find the median of a pdf picture it basically is a triangle with points (0,0) (6,.2) (10,0) do i need to find the slopes to find equations for the lines? thanks!
*April 7, 2008 by tia*

**Chemistry**

Calculate the enthalpy of reaction. D + F --> G + M using the following equations and data: G + C --> A + B ΔH = +277 kJ C + F --> A ΔH = +303 kJ D B --> M ΔH = -158 kJ
*March 21, 2011 by Josh*

**Chemistry**

Calculate the enthalpy of reaction. D + F --> G + M using the following equations and data: G + C --> A + B ΔH = +277 kJ C + F --> A ΔH = +303 kJ D B --> M ΔH = -158 kJ
*March 21, 2011 by Josh*

**Chemistry**

Ammonia, NH3, is a stronger ligand than Cl- but weaker than CN-. Complete the balanced equations for the reactions that are predicted to occur. CoCl6^3- (aq) + CN- (aq) ---> Co(NH3)6^3+ (aq) + Cl- (aq) ---> Co(CN)6^3- (aq) + NH3 (aq) --->
*June 13, 2012 by Jane*

**Math**

Use the substitution method to solve the following system of linear equations: x + y = 6 x = –y + 2 A. There are an infinite number of solutions. B. The solution is (2, 4). C. The solution is (4, 2). D. There is no solution.
*December 6, 2012 by Help!!!!!!!!!!!!!! Fast its urgent Please!!!!!!!!!*

**College Trigonometry**

Eliminate t from the two equations x = vtcos(theta) and y = vtsin(theta) - (gt^2/2) and obtain a relationship between x and y (assume that v, g and theta are constants)
*January 25, 2015 by Jhersey*

**math**

Which of the following algebraic equations models the English sentence, a number decreased by two is equal to four? A. w + 2 = 4 B. 2 − w = 4 C. w − 2 = 4 D. w = 2 − 4
*February 25, 2015 by Angelina*

**math**

Can someone please explain this problem Find the general solution to the linear system of differential equations. x'1 x'2 x'3 = −4 −4 5 0 −4 4 0 4 2 x1 x2 x3
*April 25, 2015 by Anonymous*

**Algebra**

I need help on one particular part of algebra because i forgot what my teacher said! Here is the question: Directions: Find the x- intercept of the graph of the equation. 1. x+ y= 5
*November 8, 2007 by Eva*

**algebra**

need help with 2 questions first It has been a long time since I did algebra and dont rememeber how to work the problems 1/5(x+1) + 2/5(x-1) = 3/10 2nd problem 0.1(2x-1) + 0.02(4x + 4) = 0.05x
*September 21, 2009 by lisa*

**algebra 2**

what is the answer to algebra with pizzazz page 100; what should you say if you see a tall, wrought-iron tower in paris, france? there are 24 blanks
*April 12, 2011 by tiffany*

**Algebra 2**

What's the answer to Algebra With Pizzazz B-50, Page 60???
*January 7, 2009 by Terrell*

**Algebra**

Algebra - Substitution Question? A+B+C=1 A+C= -1/2 A-B+C= -7 What are the values of A, B, and C?
*March 9, 2009 by Michelle*

**algebra**

Hi, how can I solve this equation using algebra? y= 9x+50, many thanks
*May 27, 2010 by Rich*

**College algebra**

What is the fundamental theorem of algebra for x^6-64?
*November 12, 2010 by amy*

**Algebra**

Will you explain the concept of "i" in algebra? Problem: 4+2i/4-2i
*April 24, 2012 by Lee*

**Algebra**

How do you solve x/a - 1 = y/b for y? Algebra question I'm stuck on. Thanks!
*November 19, 2013 by This Girl*

**Algebra**

I need help with some Algebra! Can someone help?
*May 28, 2014 by Sandy East Ward*

**Mathematics**

Kate has a tennis lesson every 5 days. She has a basketball game every 8 days. If she has both a tennis lesson and a basketball game today, on what day will she have both again?
*April 13, 2012 by Maria*

**chemistry - hess's law (check + help)**

31. Carbon monoxide reacts with hydrogen gas to produce a mixture of methane, carbon dioxide, and water. (This mixture is known as substitute natural gas.) 4CO(g) + 8H2(g) → 3CH4(g) + CO2(g) + 2H2O(_) Use the following thermochemical equations to determine the enthalpy ...
*June 8, 2011 by Farah *

**math, algebra II**

Can someone explain to me step by step how the book got to this answer i want to understand the steps....thanks Find the inverse, if it exists,for the matirx (*I used the underscore to separate the numbers within the matix) -2_1_3 3_-1_2 -4_2_0 the answer is: -4_6_5 -8_12_13 ...
*July 22, 2007 by student*

**mathematics**

The cafeteria has 144 bananas, 36 pears, and 72 apples. Each student gets the same number of pieces of fruit. What is the greatest number of students who can receive fruit? The 48 members of a chorus will sit in rows in front of the 300 members of the audience. All the rows ...
*October 15, 2013 by Aubrey*

**childcare**

6. You've developed a file in which you keep pictures of different colored birds. One day you give the group of pictures to a preschooler and ask him to separate the pictures by color-all red birds in one pile, all blue birds in another pile, and so on. He should then count ...
*April 7, 2011 by Heather*

**math**

How do I know that x^2-7=y is a function? thanks you know its a function because its a parabola (x^2) parabolas are functions because there is only one x value per y value. So I know it is a function because it has (x^2)? Is that the rule? If it has x^2, it's a function and if...
*March 20, 2007 by Mimi*

**Math**

Rational Equations Solve: How do you work it out? 1. x/4 - x+2/3 = 12 (x+2 are in the numerator) 2. 2y/4 - y/7 = y-3/2 (y-3 are in the numerator) 3. p/6 - 2p/5 = 4p-5/15 (4p-5 are in the numerator)
*April 24, 2014 by Sadie*

**math**

solve the following smultaneous equations 3x plus 2y =21 and x plus y = 8 3x -14y =0 and x - 4y plus 1 =0
*May 17, 2014 by lerato*

**math**

Identify the solution of the system of equations if any -2x-4y=1 , 12y=-6x-3 is this no solution or (o,-1) (-1,0) or infinitelt many solution
*October 28, 2014 by ann*

**Mathematics**

If A gives B $3, B will have twice as much as A. If B gives A $5, A will have twice as much as B. How much does each have? Explain clearly your working.
*January 15, 2012 by Diamon*

**math**

Solve systems by substitution 5x - 2y = -5 y - 5x = 3 Substitute 5x + 3 for y in the first equation, and solve it for x. Once you have x, use either of the two equations you wrote to solve for y.
*August 8, 2007 by Robin*

**Quadratic Equations**

The length of a rectangle is 5 ft more than the width. If the area of the rectangle is 36 sq. ft what are the dimensions of the rectangle? (Please provide steps/explanation to solve this problem.)
*March 29, 2009 by purpletree*

**geometry**

A picyure,18cm by 15cm,has a uniform frame around it.if the area of frame is 234cm2.find the dimensions of the frame,solve in quadratic equations
*August 3, 2014 by francia marquez*

**Business And Finance Mathematics**

Total current assests(CA)$20,000 Accounts receivable(AR) $10,000 Current Liabilities(CL) $11,000 Inventory(INV) $4,000 Net sales $30,000 Total assests $25,000 Net income $5,000 1. Calculate current ratio. A. 1.82 B. 1.80 C. 1.28 D .182 2.Calculate acid test. A. 1.52 B. 1.45 C...
*January 21, 2012 by V*

**ochem**

Calculate the amount (volume) of 5.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 100 mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation.
*January 29, 2009 by steve*

**chemistry**

Calculate the amount (volume) of 5.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 100mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation.
*February 2, 2009 by Jane*

**chemistry**

Calculate the amount (volume) of 6.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 150 mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation
*January 31, 2010 by Fann*

**Chemistry**

Calculate the amount (volume) of 6.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 150 mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation.
*February 1, 2011 by Shannon*

**Please help! Chemistry**

In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write half-equations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).
*August 25, 2012 by Jeconiah*

**Please help! Chemistry**

In a fume cupboard molten lead(ii) bromide is electrolysed using graphite electrodes. Write half-equations for the reaction at the (i).cathode (ii). Anode (iii). Overall equation (states required).
*August 25, 2012 by Jeconiah*

**English**

Create a paraphrase of the following sentence from “The Cold Equations”: "Our time is up, Gerry—I have to go, now. Good—" Her voice broke in mid-word and her mouth tried to twist into crying.
*January 8, 2015 by tj*

**Vectors and Math**

The textbook answer is -80 Question: find (3a+4b)(2b+4a) if a= -i-3j+k and b=2i+4j-5k What I did: =6(a)(b) - 12|a|^2 + 2|b|^2 - 4(a)(b) =2(a)(b)-12|a|^2+2|b|^2 substitute a and b with given equations. Added like terms for each part.(too long to write out) and I got -20-6+38+4-...
*February 7, 2015 by Help-me-Please*

**mathematical physics**

Determine the scale factors for an orthogonal coordinate system ( s, t, v ) whose coordinates are related to the cartesion by following equations: x = 2st:, y = s^2-t^2:, z = v Also write down an expression for the square of the arc element.
*March 21, 2015 by gourav *

**mathematical physics**

Determine the scale factors for an orthogonal coordinate system (s, t, v) whose coordinates are related to the Cartesian by the following equations: x = 2st, y = s^2-t^2, z = v Also write down an expression for the square of the arc element.
*March 23, 2015 by gourav *

**Pre-Calculus**

Write the standard form of the equation of the circle that passes through the points at (4,5), (-2,3), (-4,-3). I have gotten to the point of the system of equations but do not know know how to proceed. I have: 4D + 5E + F + 41 =0 -2D + 3E + F + 13 =0 -4D - 3E + F + 25 =0 Any ...
*September 1, 2008 by Lucy*

**Chemistry**

I'm having alot of trouble in chemistry. Currently were studying chemical equations and reactions. I would like to know if this is a single or double replacement reaction. 2Li + H2O ---> 2LiOH + H2
*March 13, 2009 by Alexandria*

**maths**

im trying to rearrange the following equation for x but getting confused because of the brackets and squares. I understand the process of changing the subject but on more simple equations. Please can you help me. Here's the equation y = 3(x+5)^2
*November 19, 2009 by confused*

**Math 156**

Write two different equations that can be used to solve this problem: a low of -4 degrees is predicted for tomorrow. If the tempeture is now 8 degrees by how much must it change?
*November 20, 2009 by Rmz*

**totally math**

some ordered pairs for a linear function of x are given in the table below. x y 1 1 3 7 5 13 7 19 sorry im not good at tables which of the following equations was used too generaTE the table above a y=2x+1 b y=2x-1 c y=3x-2 d y=4x-3
*April 7, 2010 by eva*

**physics**

What is the required resistance of an immersion heater that will melt 6.39 kg of ice at 0°C in 36 min while operating at 110 V? im not too sure how to do this because delta_T=0. With the equations im using, i get 0 but its not the answer and im not quite sure what to do. ...
*May 19, 2010 by Mitch*

**Chemistry**

Complete and balance each of the following equations for gas-evolution reactions. HNO3(aq) + Li2S produces ? Express your answer as a chemical equation. Identify all of the phases in your answer.
*October 8, 2010 by Anonymous*

**physics**

A plum is located at coordinates (-4.0 m, 0.0 m, 6.0 m). In unit-vector notation, what is the torque about the origin on the plum due to force F whose only component is indicated by each of the following equations? (a) Fx = 8.0 N ô = N · m (b) Fx = -5.0 N ô = N · m (c) Fz = 2....
*January 5, 2011 by Joey*

**economics**

Suppose that the free market labour supply and labour demand equations are given by Qs = 5W and Qd = 30 - 5W. If the minimum wage were set at $2.50 an hour, how many people would not be able to find work?
*January 27, 2012 by Ricky*

**Math (Calculus)**

Use the disc method to find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the indicated line. y=x^3, y=0, x=2 a)the x-axis b)the line x=4
*May 9, 2014 by Sherman*

**exponential equations**

A colony of Streptococcus bacteria has a current population of 450 organisms. This particular strain has a doubling time, d , of 25 minutes. Calculate the future population after 2.5 hours.
*April 8, 2015 by Anonymous*

**Statistics**

Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite subject. In this year's class, however, only 21 out of 32 students named math as their favorite class. The instructor decides to construct a confidence interval ...
*October 26, 2012 by Oops*

**AP Statistics**

Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite subject. In this year's class, however, only 21 out of 32 students named math as their favorite class. The instructor decides to construct a confidence interval ...
*November 3, 2012 by Blegh*

**physics-mechanics-collisions,momentum, impulse**

You are at the controls of a particle accelerator, sending a beam of 2.40×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All such protons...
*October 28, 2012 by HANNE*

**Mathematics - Trigonometric Identities**

Let y represent theta Prove: 1 + 1/tan^2y = 1/sin^2y My Answer: LS: = 1 + 1/tan^2y = (sin^2y + cos^2y) + 1 /(sin^2y/cos^2y) = (sin^2y + cos^2y) + 1 x (cos^2y/sin^2y) = (sin^2y + cos^2y) + (sin^2y + cos^2y) (cos^2y/sin^2y) = (sin^2y + cos^2y) + (sin^2y + cos^2y)(sin^2y) / (sin^...
*November 8, 2007 by Anonymous*

**Math-Algebra 1**

Part 1: When writing linear equations, how do you determine which form of a line to use? Part 2: Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in point-slope form for the line that passes ...
*November 23, 2013 by Gabby*

**Algebra 1**

Lately I just have blacked out in my algebra 1 class. Here's a equation on my worksheet, and I would be happy if you could show in steps how you got your answer. Thank you. (2x²+5x+3)-(x²+2x+1)
*September 8, 2009 by Samantha*

**Algebra **

I need some help with algebra I'm not sure how to get to the answer. Find the number of terms in each sequence. 1. a1=4 an=42 d=2 2. a1--0.3 an=-36 d=2.1 3. 1/12, 1/8, 1/6, 5/24, 1/4,......9/8 Evaluate each sum. 1. There is an e like symbol that has a 15 on top on the bottom n...
*April 8, 2013 by Jenny*

**mathematics**

1 round 234508 to the nearest thousands 2 round 45099 to the nearest thousands 3 round 8650 to the nearest thousands
*December 3, 2012 by alana*

**probability-April**

The probability that a student passes Mathematics is 2/3 and the probability that he passes English is 4/9. If the probability that he will pass at least one subject is 4/5, then what is the probability that he will pass (i) Both the subjects? (ii) Exactly one of the subjects...
*April 18, 2013 by Anonymous*

**Mathematics **

What is the difference between 12√2 and 12? What is the difference between 6√2 and 6?
*March 10, 2015 by Victoria*

**Plz Check my Geometry(sOo0n)**

1.) Given points A(-4, 5), B(2, 3), C(0, 4) and D(5, 0), decide if AB and CD are parallel, perpendicular or neither. =Neither 2.)Given the equations y = 1x + 7 and y = 3x - 2, decide whether the lines are parallel, perpendicular or neither. =neither 3.) Given the equations y...
*June 9, 2010 by Ariel*

**Precalculus check answers help!**

16. Find the distance between P (–2, 5) and the line with equation x – 3y + 4 = 0. (1 point) 17(sqrt10)/ 10 0 -17(sqrt10)/ 10 13(sqrt10)/ 10 ~ 17. Find the distance between the lines with equations 5x + 12y = 12 and y = –x + 3. (1 point) 24/13 ~ 48/13 -48/13 48/17 18. Find an ...
*May 30, 2012 by Kelsey *

**Precalculus check answers help!**

16. Find the distance between P (–2, 5) and the line with equation x – 3y + 4 = 0. (1 point) 17(sqrt10)/ 10 0 -17(sqrt10)/ 10 13(sqrt10)/ 10 ~ 17. Find the distance between the lines with equations 5x + 12y = 12 and y = –x + 3. (1 point) 24/13 ~ 48/13 -48/13 48/17 18. Find an ...
*May 31, 2012 by Kelsey *

**Algerbra**

solve for x ac+x=xy have all terms with x on one side ac=xy-x take x as common factor ac=x(y-1) now solve for x 25a^2 - 9b^4 can u please help me solve and check these equations
*September 26, 2006 by Mark*

**chemistry**

balance the equations 1)Mg3N2+N2+H2O=Mg(OH)2+NH3 2)KMnO4+H2S+H2SO4=KHSO4+H2O+MnSO4 3)AS2O3+SnCl2+HCL=SnCl4+AS+H2O
*June 22, 2013 by vishal*

**stats**

The Title I coordinator for the district has been tasked with developing a plan to test two new intensive remediation programs for students with dyscalculia (like dyslexia, only numbers are the problem, rather than words!). The students are 60 8th graders at a magnet school ...
*March 1, 2009 by ash*

**stats ?**

The Title I coordinator for the district has been tasked with developing a plan to test two new intensive remediation programs for students with dyscalculia (like dyslexia, only numbers are the problem, rather than words!). The students are 60 8th graders at a magnet school ...
*March 2, 2009 by ash*

**mathematics**

Angles 1 and 7 are alternate exterior angles of a transversal cutting two parallel lines. If m(angle1)=4x+10 and m(angle7)=6x+4, what are the measures of angles 1 and 7? Give a property of angles that helped you solve the problem. What's confusing me about this problem is the ...
*February 10, 2010 by nicole*

**Mathematics**

what is (5 3/5 divided by 1 5/9) - (1 1/5) squared? what is (five and three over five divided by one and five over nine) minus (one and one over five) squared? the answer is suppose to be 2 4/25 (two and four over twenty-five) but I'm not sure how to work out the second part ...
*October 1, 2009 by kerry-ann*

**math**

In mathematics class, 30 students received an A on the third test, which is 125% of the students who received an A on the second test. How many students received an A on the second test?
*October 5, 2014 by ashley*

**Math**

Determine whether the situation requires an exact calculation or an estimate. Explain. This week, the Laketown Cruise Company took its boat on 19 cruises, carrying the boat's full capacity of 38 guests on each cruise. Was this week's total guest count smaller than last week's ...
*October 20, 2009 by Anonymous*

**Finite Mathematics**

Jessica wants to accumulate $14,000 by the end of 5 yr in a special bank account, which she had opened for this purpose. To achieve this goal, Jessica plans to deposit a fixed sum of money into the account at the end of the month over the 5-yr period. If the bank pays interest...
*February 7, 2011 by Salvany*

**Mathematics**

1. Show that Sin3 Theta - Cos2 Theta = (1 - Sin Theta)(4Sin^2 Theta + 2Sin Theta - 1). Without using a calculator, show that Theta = 18 degrees is an exact solution of the equation Sin3 Theta = Cos2 Theta. Justifying your answer, find the exact values of: i) Sin18 degrees. ii...
*August 3, 2011 by Edwards*

**physics**

A 10 kg monkey climbs up a massless rope that runs over a frictionless tree limv and back down to a 15kg package on the ground. a) what is teh magnitude of the least acceleration the monkey muct have if it is to ligt teh package off the ground? If after the packafe has been ...
*November 21, 2006 by Bri*

**Math**

Kosuke wrote a mathematics contest consistingof 25 multiple choice questions, the scoring system gave 6 points for a correct answer, 2 points for not answering, and 1 point for an incorrect answer.Kosuke got x correct and left y unanswered questions a) write an expression for ...
*October 9, 2011 by Nancy*

**ALGEBRA**

The profit made from the sale of tiles is found by subtracting the costs from the revenue. e. Find the Profit Equation by substituting your equations for R and C in the equation . Simplify the equation. f. What is the profit made from selling 20 tile sets per month? g. What is...
*June 23, 2011 by AMERICAN GIRL*

**Mathematics**

The graph of y = 2^x-3 can be obtained by shifting the graph of y= 2^x a) 3 units to the right b) 3 units to the left c) 3 units up d) 3 units down e) 2 units to the right and 3 units up The equation of the graph that is obtained by reflecting the graph of y = 3^-x in the y ...
*August 5, 2012 by Willie*

**math**

In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally distributed. a. The wealth of the parents of students attending your school b. The values that a group of fourth-grade students would give for the ...
*August 11, 2009 by Anonymous*

**Mathematics**

A solution is mixed with a 12% acid solution to form a 16% acid solution. How many liters of the 20% acid solution are used to make 10 liters of the 16% acid solution?
*February 24, 2010 by Matthew*

**mathematics (percentages)**

math problem: pedro wants to calculate his gpa. he has the lab grades:90/100,98/100,90/100,94/100,90/100,90/100,95/100,98/100. Labs are worth 20%. He has the test grades: 9/10,6/10,10/10,10/10,5/10,7/10,7/10,7/10,10/10,10/10,8/10,10/10. Homework is worth 20% test grades are: ...
*December 5, 2006 by day*

**Mathematics (probability)**

A bag contains 3 red and 5 white toys. Rose picked two toys one after the other. Draw a probability tree. Find the probability that Rose gets two red toys. You can use Microsoft Word to draw a probability tree.
*May 16, 2013 by arzam*

**alg.**

solve and graph 2x-y=4 2x-y=6 would this be x=2+0.5y x=3+0.5y and then graph as that??????? not really sure what i am doing here Put both equations in the form of y=mx +b Then observe that the slope is the same, the lines are parallel, and have no common solution.
*May 20, 2007 by clueless*

**science equations**

my grand daughter is having a awful time with this and i can't help her but if you would explain it to me maybe i can help here goes a skier with a mass of 48kg moves with a velocity of 11.45 m/s east. what is the skier's momentum p=mxv.
*January 24, 2008 by summer*

**precalculus**

i need help with homework which is due tommorow determine algebraically whether the graph of the given equation is symmetric to the y axis the x axis or the origin the equations are 5y=7x^2-2x can u show work please thanks in advance
*February 21, 2010 by HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*

**Pre-calc**

Heres the equation: (x^2)-(4y^2)-(4x)+(24y)-(36)=0 Your supposed to find the coordinates of the center, foci, and vertices, and the equations of the asymptotes of its graph. So first you complete the square right? (x^2 -4x+4)-4(y^2 +6y+9)=36+4+36 [((x+2)^2)/76] -[(y+3)^2)/19]=...
*April 29, 2012 by Maya*

**matt/116**

Will someone please help me find the answer to this question please. How do you write a system of linear equations in two variables? Explain this in words and by using mathematical notation in an equation.
*February 12, 2013 by Sade C*

**Chemistry**

When silver-107 is bombarded with a neutron, a different isotope of silver forms and then undergoes beta decay. What is the final product? (My Hints: Write two separate nuclear equations.)
*March 1, 2013 by Michelle*

**math**

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.
*April 23, 2013 by Anonymous*

**math**

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.
*April 23, 2013 by Anonymous*

**math**

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.
*April 23, 2013 by Anonymous*

**math**

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.
*May 3, 2013 by bryant*

**math**

What is the length of the midsegment of the trapezoid made by the vertices A(0, 5), B(3, 3), C(5, -2) and D(-1, 2). Show equations and all work that leads to your answer. Answer Skip text editor options Collapse: Formatting Toolbar
*November 21, 2013 by shianne*

**Chemistry**

A sample of nitrogen occupies a volume of 300ml under a pressure of 380 torr at -177C. What would be the volume at STP? I know the answer is 430mL but I don't know which equations to use to formulate the calculation.
*May 1, 2014 by n*

**physics**

Solve the equations 1 2 mv2 + 1 2 Iω2 = mgh and v = rω for the speed v using substitution, given that I = mr2 and h = 4.20 m. (Note that mass m and radius r will both cancel, so their numerical values aren't required.)
*March 6, 2015 by alba*

**AP physics **

Solve the equations 1/2mv2 + 1/2Iω2 = mgh and v = rω for the speed v using substitution, given that I = mr2 and h = 4.20 m. (Note that mass m and radius r will both cancel, so their numerical values aren't required.) m/s
*March 6, 2015 by Amar*

**Mathematics : Arithmetic Sequence**

The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively. a)Find the 1st term and the common difference of the arithmetic sequence. b)Find the general term of the arithmetic sequence.
*September 7, 2008 by Charmian*

**Math**

I have been asked to solve the following system of linear inequalities by graphing. I tried replacing with various numbers but even though the they work in the equations my graphs change from consistent to inconsistent. Please help.
*May 26, 2007 by Aman*