# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 236-
## Calculating Chi Squared

I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light

*asked by Catherine on October 29, 2011* -
## analytical chemistry

DrBob222, it is me again. Continue the question 5mL of a solution A (unknown concentration) was transferred into sic 25mL volumetric flask. The following volumes of a standard solution of A with with a concentration 75ppm were added to the flask: 0mL,

*asked by katy on May 10, 2015* -
## ordinary differential equation

A contains 200 liters of solution in which is dissolved 40 kg of salt. Tank B contains 400 liters of solution in which are dissolved 80 kg of salt. Pure water flows into tank A at rate of 10 liters per second. There is a drain at the bottom of tank A.

*asked by thigan on May 21, 2016* -
## Stats

When asked about their driving, 56% of students say they are better than the average driver, 39% say they are an ave. driver and the rest say they are worse than ave. A pair of students are driving home together for break. What is the probability that at

*asked by CM on October 14, 2009* -
## physics

1) A golf ball is hit from a position that is 4m higher than h ehorizintal area where the ball lands. The intiial velocity of he ballis 30ms-1 at a angle of 0 above the horizintal a)show that the maximum height of the ball above the landing area is

*asked by 0ooooooooo0 on September 28, 2017* -
## 1 chem question

A base has a Kb of 2.5 x 10–11. Which of the following statements is true? This is a concentrated base. This base ionizes slightly in aqueous solution. This is a strong base. An aqueous solution of this base would be acidic. (do explain. i don't

*asked by Sara on February 14, 2012* -
## Chemistry

Write rate law expressions? 2NOCl(g) --> 2NO(g) + Cl2(g) S2O3^2-(aq) + H^+(aq) --> HSO3^-(aq) + S(s) (Sulfur initially forms a colloid solution so it can be treated as aqueous.) (1) Write the rate law expression for the above reactions, assuming these are

*asked by Donna on May 21, 2008* -
## Physics (Calc Based)

I understand how to solve this problem ,however cannot figure out why the .5 degrees is being converted to radians: PROBLEM: How would one determine the percent uncertainty in theta and in sin of theta for the following: 1) theta = 15.0 degrees +/- 0.5

*asked by Tom on September 8, 2010* -
## Physics

A large statue in a crate is being moved. The mass of the statue and the crate is 150 kg. As the statue slides down a ramp inclined at 40.0°, the curator pushes up, parallel to the ramp’s surface, so that the crate does not accelerate. If the statue

*asked by Maddy on December 5, 2015* -
## Chemistry

Based on the following observations for 3 unidentified metals (Z, X, and D) and solutions of their metal cations (Zn+ and En+), rank the metals in terms of reducing agent strength, from lowest to highest. -When metal X is placed in an aqueous solution of

*asked by Nathaly on April 2, 2017* -
## math

Two station astronauts will each perform three 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish this? Please

*asked by math on January 29, 2015* -
## Math

1. What are the steps to solve this problem? 0.000027 ÷ 0.000009 Requirements: • Explain how to use scientific notation to solve the problem. • Describe how to divide numbers written in scientific notation. • Give you final answer in simplest form.

*asked by anonymous on November 14, 2013* -
## math

Write an inequality to solve each problem.Then solve the inequality. 1. Marcus wants to buy baseballs.He has $35. What is the most each baseball can cost? 2. Melinda charges $4 per hour for babysitting. Mrs. Garden does not want to spend more than $25 for

*asked by thomas on March 5, 2014* -
## Physics

A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend in the bottom 15.4 cm of the jump? I've been told that I need to use the height of the jump to solve for V. Then I need to use

*asked by Lindsay on October 10, 2007* -
## Algebra 2 review

Bob and Latoya both drove to a baseball game at a college stadium. Bob lives 70 miles from the stadium and latoya lives 60 miles from it. Bob drove at a rate of 50 miles/hour and Latoya drove at a rate of 40miles/hour. If they both left home at the same

*asked by Beth on April 28, 2011* -
## Geography (Ms, Sue)

How might a road system have helped to hold the Inca empire together? A: As the Inca empire was mainly located in the Andes mountains, a road system might have helped to hold the Inca empire together as it crossed mountains and deserts to link the empire.

*asked by Anonymous on September 25, 2013* -
## odd and even functions

Using f is odd if f(-x) = -f(x) or even if f(-x) = f(x) for all real x, how do I 1)show that a polynomial P(x) that contains only odd powers of x is an odd function 2)show that if a polynomial P(x) contains both odd and even powders of x, then it is

*asked by Jen on January 30, 2007* -
## Chemistry

When a clear aqueous solution of calcium chloride (CaCl2) is mixed with a clear aqueous solution of sodium carbonate (Na2CO3), a white solid precipitate forms. What happens to the mass of the mixture after the solid precipitate forms? Choose the best

*asked by Lily on September 25, 2012* -
## Programming

As instructed by jim, I am reposting my question with work done so far... In this lab, you will demonstrate your understanding of two-dimensional arrays by implementing a TicTacToe game. The service class created in this lab will be utilized later in the

*asked by Tim on October 14, 2009* -
## math connections

1. x/4+1=-5 A)-2 B)16 C)4 D)-24 ****?? 2. 6x+29=5 A)-4****** B)-18 C)204 D)-144 3. combine like terms -21a+16a -5a**** 5a 37a -37a 9a-b-2a-10b simplify -7a + 11b 11a + 9b -11a-9b 7a-11b ????? solve -4n + 7 + 2n=1 1 3 -3 4 solve 4(y-4)=8

*asked by dude on December 21, 2016* -
## math connections

1. x/4+1=-5 A)-2 B)16 C)4 D)-24 ****?? 2. 6x+29=5 A)-4****** B)-18 C)204 D)-144 3. combine like terms -21a+16a -5a**** 5a 37a -37a 9a-b-2a-10b simplify -7a + 11b 11a + 9b -11a-9b 7a-11b ????? solve -4n + 7 + 2n=1 1 3 -3 4 solve 4(y-4)=8

*asked by dude on December 21, 2016* -
## MATH!!!!ASAP!!!

How can i graph this equation by plug in numbers???? x^2-y^2=9 HELP PLZ!!!!!!THX ALOT!!!! Assign numbers to x and solve for y then put them in a graph: let's say x is -3 Then 9=y^2+9 y^2=0 y=0 Ok now x= -4 16=y^2+9 y^2=5 y=2.236 Also you can assign y a

*asked by Katrina on December 14, 2006* -
## Algebra

I cannot solve the problem please help me. I'm suppose to set the equations up to solve for t. x = y + rt + at^2/2 Even when I plug in the values I don't get the answer. x = 16.4 y= 0 r= 0*cos(45)a=0 t is suppose to equal 2.32 if I set the problem up

*asked by Angie on October 11, 2012* -
## Math: Limits

Estimate the limit numerically. lim as x→(approaches to)5 6e^(x − 5) How do I solve it? I don't plug in the numbers do I? Then how do I do this as well? What should I do to solve lim x→(approaches to)− infinity 6xe^(7x) Do I disregard the other

*asked by Nick on March 10, 2012* -
## Math 2(PLase Help)

I tired my best on this one... 4.(6y^2+4y-3)+ (3y^2+2)= My WOrk=18y^4+12y-6 Unfortunately, your work is incorrect. Based on the original problem, it looks like you multiplied things together. The parentheses don't matter in this problem. Simply combine

*asked by Margie...(HappyNewYearEveryone) on January 2, 2007* -
## Physics

A man drags a table 4.25 m across the floor, exerting a constant force of 54.0 N, directed 28.0° above the horizontal. I have found the work done by the applied force to be 202.6 J but I can't find the second part of the question which is below. (b) How

*asked by Cindy on October 4, 2011* -
## health

I am completely confused can anyone help me? Here is my question.... For each body system, identify which body approach(es) might best be used to organize information. Choose only from the following approaches: microscopic-to-macroscopic, body directions

*asked by Cindy on May 30, 2010* -
## Algebra 1

The manager of a band recommends that the band sell its CDs for $8.75. The band decides to sell the CD for p dollars. A) Write an absolute value expression that tells how far the bands price is from the recommended price. B) The band wants the price of its

*asked by Ellie on October 4, 2015* -
## Biochemistry

On preparation of a solution of protein, you attempted to dissolve the substance in water, but a suspension resulted. Drop-wise adition of NaOH solution, with stirring, eliminated the suspension. Addition of acid to the original suspension had no effect.

*asked by Andrew on January 25, 2009* -
## Econ

Suppose the government wants to reduce the total pollution emitted by three firms in its area. Currently, each firm is creating 4 units of pollution in the area, for a total of 12 pollution units. The government wants to reduce total pollution in the area

*asked by John on May 19, 2012* -
## Physics

i know this is alot to ask for but these 10 i can nott get out of the 30 A man pulls a 10-kg box across a smooth floor with a force of 71 newtons at an angle of 23 degrees and for a distance of 97 meters. How much work, to the nearest joule, does he do?

*asked by Michelle on December 10, 2008* -
## (Math) PLZ CHECK ANSWERS

1. Which number is a solution of the inequality? 10.68 A)-5 B)-6 C)6 D)7*** 3. Which number is a solution of the inequality? 6>z(10-z) A)0 B)1 C)2 D)3*** 4. What are all the subsets of the set? {-1,9} A) 0, {-1}, {9}*** B) {-1}, {9}, {-1, 9} C) 0, {-1},

*asked by Katrina on October 28, 2016* -
## math

Ok, so when you are solving an equation, and you have an answer such as 5x=0 , does that mean that it is no solution or all real #s? And, when the answer is 4=4 , does that mean it is no solution or all real #s? And when the answer is 2x=2x, does that mean

*asked by K on May 7, 2013* -
## Chemistry

HOBr (aq) H+ (aq) + OBr- (aq), Ka = 2.3 x 10^-9 Hypobromous acid, HOBr, is a weak acid that dissociates in water, as represented by the equation. (a) Calculate the value of [H+] in a solution of HOBr that has a pH of 4.95. Ans: 1.1 * 10^-5 M (b) Write the

*asked by Confused on April 10, 2012* -
## Math Please help

Find the next number in the sequence -2,4,-8,16,____ 243,-81,27,-9,____ 34,-68,136,-272,____ on the first, the sequence alternates signs, and is 2^n. Next term is -32 On the second, divide by three, alternate signs. Third, alternate signs, double...

*asked by Anonymous on April 7, 2007* -
## anonymous

I need help solving these problems. I tried but my teacher did not teach it to us so it is very difficult for me. Thanks. "Projectiles launched at an angle" 1. A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive. What maximum

*asked by PHYSICS.....confused on October 25, 2006* -
## math prob:(

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in part a similar to solving the inequality in part b? d. How are the solutions different?

*asked by Princess Anna on January 22, 2014* -
## MATH

a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different?

*asked by Cindy on January 17, 2014* -
## Math

a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different?

*asked by Jenny on January 17, 2014* -
## Solving inequalities

I have to solve the following inequalities: x^2 + y^2 is less than or equal to 49 y is less than or equal to 3-x^2 I know that these are the equations of a circle and a parable. There should be 3 solutions. However, I am not sure how to solve these

*asked by Joanie on March 30, 2009* -
## PreCalc

Someone please help me solve this equation for y. (x^2)(y^2)+xy=1 I need to solve for y so that i can graph it! y^2 + y/x - 1/x^2 = 0 Treat 1/x as b and -1/x^2 as c in the quadratic equation ax^2 + bx + c = 0 There are two solutions y = [-1/x + sqrt(1/x^2

*asked by Jill on February 26, 2007* -
## math

a. Solve a - 9 = 20 b. Solve b - 9 > 20 c. How is solving the equation in part a similar to solving the inequality in part b? d. How are the solutions different?

*asked by victoria on December 19, 2013* -
## Differential equation

y′=8e^(4x)(1+y2)solve for y(0)=−2 ⇒ y= I tried to solve the problem and got the equation: tan^-1((2e^(4x)-2+tan(-2)))it says I am wrong and I resolved and got the same thing I must be doing something wrong please help!

*asked by Joe on June 12, 2015* -
## Math

Let f(x) = 2x + 1 − sin(x), how many roots does f(x) have in the interval [−π, π]? Use the next steps to prove that it has only one root. a) Use the Intermediate Value Theorem to show that f(x) has at least one root. (b) Explain why f(x) is

*asked by Paula on February 9, 2015* -
## journalism check answers

What is a fixer? a newsroom technician who handles the media outlet's infrastructure a local reporter in a far-flung place who helps foreign correspondents navigate the logistics of reporting in an unfamiliar place a source who "fixes" or misrepresents a

*asked by Robb4301 on February 27, 2015* -
## Chemistry

2 Al(s) + 3 Cl2(g) → 2 AlCl3(s) Into a cylinder with a moveable piston (pressure stays constant), a piece of aluminum is placed and chlorine gas is added. After they react, the temperature inside the piston is considerable higher than its initial

*asked by tatyana on October 14, 2017* -
## Art

Hello. I'm suppose to examine the "winged genie fertilizing a date tree" and explain the elements of art found in the work, one particular element that helped with the overall success of the artwork, and explain what type of movement is shown in the work.

*asked by Dannie on February 4, 2014* -
## algebra

Solve each equation by factoring. 7x²-243=0 I know I'm supposed to add 243 to the other side but don't know what else to do. Divide maybe? Thanks in advance. -243+7x^2= 0 (reorder) -243+243+7x^2 = 0+243 (add 243 to both sides) 7x^2=243 (Combine like

*asked by Sir Galahad on November 27, 2006* -
## physiology

Why do the control mechanisms have several intergation centers? Julia, did you mean integration or interrogation? The control systems are not simple, they are multilayered, multistepped, and operate by releasing hormones, enzymes, and bioactive substances

*asked by julia on June 3, 2007* -
## statistics

The mean length of a work week for the population of workers was reported to be 39.2 hours. Suppose that we would like to take a current sample of workers to see whether the mean length of a work week has changed from the previously reported 39.2 hours. a.

*asked by frances on April 29, 2012* -
## physics

Based on the third law motion of equal and opposite forces, a mass should never accelerate because the net force on it will always be zero. Resolve the issue. would F=ma answer this question? If a force is exerted by object A on object B, then B exerts a

*asked by Benji on November 20, 2006* -
## math

Consider a state lottery that has a weekly television show. On this show, a contestant receives the opportunity to win $1 million. The contestant picks from four hidden windows. Behind each is one of the following: $150,000, $200,000, $1 million, or a

*asked by Leslie on June 17, 2010* -
## English

this is my answer to this question is it right. select the sentence that is punctuated correctly. 1.Paloma did not make it to work for, her car broke down on the freeway. 2.Paloma did not make it to work for her car,broke down on the freeway. 3.Paloma did

*asked by clint74 on February 4, 2012* -
## HCA/210

My final assignment is due for my HCA/210 I have to come up with 700-1050 words on the following: Develop a unique proposal that describes a new health care system. Consider the current health care systems strengths, weaknesses, and challenges. Also

*asked by Nikol on June 28, 2010* -
## math

Enter your answer and show all the steps that you use to solve this problem in the space provided. Drawings not to scale On Quadrilateral A B C D, side A B measures 10 units and side A D measures 6 units. Angle D measures 86 degrees and Angle C measures 41

*asked by umbrella academy fan on April 1, 2019* -
## statistics

A sample of 106 golfers showed that their average score on a particular golf course was 87.98 with a standard deviation of 5.39. Answer each of the following (show all work and state the final answer to at least two decimal places.): (A) Find the 90%

*asked by Laynette on September 2, 2011* -
## statistics

A sample of 134 golfers showed that their average score on a particular golf course was 87.43 with a standard deviation of 4.53. Answer each of the following (show all work and state the final answer to at least two decimal places.): (A) Find the 99%

*asked by Valerie on November 2, 2010* -
## Science-Physics

You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = .55. The force you exert is horizontal. (a) How much power is needed to push the box at a speed of .50 m/s? (b) How much work do you do if you push the box for 35 s?

*asked by Erica on January 9, 2011* -
## PHYSICS

Hooke's Law: 1.) If it takes 10 N to compress a spring 20cm, how much energy will be stored in the spring when it is stretched 50cm. ***Also, for ex: If I am doing work against a restoring force, say, doing work against gravity, what kind of force is the

*asked by Angie on March 23, 2016* -
## vector and mass

A particle of mass m kg is acted on by two forces F1 and F2 with magnitudes 3root5 newtons and root5 newtons ad drections parallel to the vectors i+2j and i-2j respectively The particle is initially at a position given by vector 2i+j iv calculated the

*asked by rav on July 15, 2006* -
## quantitative chemistry

Consider a solution made by mixing 500.0 mL of 0.04182 M Na2HAsO4 with 500.0 mL of 0.03645 M NaOH. Complete the mass balance expressions below for Na and arsenate species in the final solution. There are 4 arsenate species, but I only got three of them. I

*asked by Jackie on March 22, 2013* -
## chemistry

Consider a solution made by mixing 500.0 mL of 0.04182 M Na2HAsO4 with 500.0 mL of 0.03645 M NaOH. Complete the mass balance expressions below for Na and arsenate species in the final solution. There are 4 arsenate species, but I only got three of them. I

*asked by Jackie on March 23, 2013* -
## CHM 152

At 20oC, a 2.32 M aqueous solution of Ammonium Chloride has a density of 1.0344g/ml. WHat is the molality of Ammonium Chloride in the solution? The formula weight of NH4Cl is 53.50 g/mol?? I am not sure how to incorporate the density into the problem to

*asked by Car on June 10, 2010* -
## chemistry

A sample of fresh grapefruit juice was filtered and titrated with the I2 solution prepared in Part 2. A 100.0 mL sample of the juice took 9.85 mL of the iodine solution to reach the starch end point. What is the concentration of Vitamin C in 100ml juice?

*asked by saddee on April 28, 2009* -
## Chemistry

I have no idea where to even start with this problem on my pre-lab! For part of the experiment, you will need to prepare 100 mL of 0.025 M CH3CO2H, starting from commercial "glacial" acetic acid, which has a concentration of 17.4 M. This is best done by

*asked by Jen on October 10, 2011* -
## math

eva wants to make two pieces of pottery.she needs 3/5 pound of clay for one piece and 7/10 pound of clay for the other piece.she has three bags of clay that weigh 4/5 pound each.how many bags of clay will eva need to make both pieces of pottery?how man

*asked by keon on October 2, 2014* -
## Computer Science

The digits 0, 1, and 8 look much the same if rotated 180 degrees on the page (turned upside down). Also, the digit 6 looks much like a 9, and vice versa, when rotated 180 degrees on the page. A multi-digit number may also look like itself when rotated on

*asked by Anonymous on March 13, 2011* -
## English

Hello. I'll be grateful for your help. 1)Is it possible to use "deal with" in the same meaning as "solve" in the context "I hope they will solve the Middle East conflict"? 2)Which is the correct position of the preposition in the sentence "the region has

*asked by Ilma on July 7, 2011* -
## polytechnic of Namibia

Basic science, A hammer of mass is dropped from thew top of a roof of the two storey building to the ground. Another hammer of equal mass fell from a coffee table to the ground. Given than the height of the two storey building and the coffee table are 10m

*asked by frans on September 7, 2015* -
## science

Suppose an ideal car jack has an input work 2750 J. It lifts a car 0.35 meters in 8 seconds. a. What is the output work of the jack? b. How much power is required to lift the car? c. What is the efficiency of the jack?

*asked by Anthony on March 14, 2017* -
## MATH, 3rd time i posted this

can someone please help me, i posted this like 3 times. i need help on a couple of questions. I did all my other questions but i need a lot of help with the word problems... 1. The side length of a small square is s. A larger square has a perimeter of

*asked by Olly on March 26, 2013* -
## Chemistry

A saturated solution of barium chloride at 30 degrees celcius contains 150g of water. How much additional barium chloride can be dissolved by heating this solution by heating this solution to 60 degrees. Solubility of Bacl @ 30 degrees=38.2g/100g water

*asked by Sumaiyah on June 20, 2013* -
## Chemistry

A saturated solution of barium chloride at 30 degrees celcius contains 150g of water. How much additional barium chloride can be dissolved by heating this solution by heating this solution to 60 degrees. Solubility of Bacl @ 30 degrees=38.2g/100g water

*asked by Sumaiyah on June 20, 2013* -
## Chemistry

A saturated solution of barium chloride at 30 degrees celcius contains 150g of water. How much additional barium chloride can be dissolved by heating this solution by heating this solution to 60 degrees. Solubility of Bacl @ 30 degrees=38.2g/100g water

*asked by Sumaiyah on June 20, 2013* -
## algebra

find the average weight in pounds of a type of bird of your choice. Use the rational exponent equation L = 2.43 * W^0.3326 to estimate the wingspan L in feet of the bird that weighs W pounds show the average weight. How do I show the calculations necessary

*asked by Rick on December 1, 2007* -
## Precalculus

(a) Suppose $x$ and $y$ are points on the unit circle such that the line through $x$ and $y$ intersects the real axis. Show that if $z$ is the point where this line intersects the real axis, then $z = \dfrac{x+y}{xy+1}$. (b) Let $Q_1 Q_2 \dotsb Q_{18}$ be

*asked by Zheng on January 31, 2017* -
## Economics

The marginal tax rate is defined as the extra taxes paid on additional income divided by the increase in income. Calculate the marginal tax rate for the proportional tax system as income rises from $50,000 to $100,000. Calculate the marginal tax rate as

*asked by Sally on November 14, 2006* -
## chem(freezing point)

please help! I am lost! Question: Find the expected freezing point of a water solution that contains 286g of aluminum nitrate (Al(NO3)3) in 8.5 kg of water. answer in celcius Note the correct spelling of Celsius. delta T = i*Kf*m Determine the molality of

*asked by Anonymous on May 29, 2007* -
## maths help

Hi MY question is if a cylinder has a volume of 72cm cubed and a cross-sectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The volume of a cylinder is given by volume = (cross-sectional area) x

*asked by Ali on April 23, 2007* -
## math

e. Felix Baumgartner is a daredevil famous for breaking the sound barrier during a freefall on October 14, 2012. Aided by a weather balloon, he climbed to a height of 128,100 feet. More than 24 miles in the air, he was so high up that he could see

*asked by kat on June 17, 2014* -
## Algebra Question

What am I doing wrong I am using the Gauss Jordan method to calculate this answer and some other students are coming up with differant answers. Problem is 3x+y+z=5, x+5y-z=-8, 10x+7y+z=2 My answer is (-6z+3,7z-4 _________, z ( 11 11) Where I have +3 they

*asked by mike on December 18, 2009* -
## math

Parker Inc. purchased a $30,000 asset with a salvage value of $1,200 and an estimated useful life of three years. What is the book value at the end of years one and two using the 150% declining balance method?

*asked by Anonymous on May 10, 2011* -
## Calc

find absolute max and min of f(x)=cosx+sin^2(x) on interval [0,2pi]. Give exact answers, not decimal approx. (Use closed interval method)

*asked by Anonymous on October 22, 2014* -
## Accounting Adjustment

Use the straight line amortization method. Equipment amortizes 20 percent per year. Trial Balance for March 31, 2005 shows equipment worth $90,030.

*asked by Colleen on February 22, 2007* -
## Math

A $26,000 company car is expected to be driven for 120,000 miles and then salvaged for $3,500. Find the unit depreciation using the units-of-production method

*asked by Khandi on July 29, 2008* -
## Health/ Basic Clinical Procedures

please check my answer True or False The medical assistant measured the circumference of the infant's head the method of the exam has occurred is called observation ? I said false

*asked by Helana on April 20, 2008* -
## Accounting 111

Would the loss on retirement of long-term debt be added to or deducted from net in come in determining net cash flow from operating activities by the indirect method?

*asked by Rochelle on April 29, 2015* -
## biology 12

what is the best method useful for estimating the populations of eagles, and why? i orginally thought counting the number of nests. but i don't know why its the best way of estimating the population. can you plesae correct me if im wrong and help me with

*asked by yesudas on September 10, 2011* -
## calculus

use the method of cylindrical shells to find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis. sketch the region and a typical shell. x=1+y^2, x=0, y=1, y=2

*asked by confusing on September 8, 2013* -
## Physical sciences

Two forces A and B act at a point O. A=30 N at 60 degree and B= 40 N at 120 degree, relative to x-axis. Calculate the magnitude and direction of the resultant force using the method of perpendicular components.

*asked by Lee on January 26, 2016* -
## Physics

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant

*asked by Nat on September 7, 2016* -
## writing/history-QUICK PLEASE

Hi, I'm trying to write a good lead for my research paper on Confucius. I'm using the "snapshot" method. So, I need an important event in Confucius' life that I can describe in writing. PLEASE HELP!!!! THANKS IN ADVAVCE! -aShLeY

*asked by Ashley on January 21, 2010* -
## biology 12

what is the best method useful for estimating the populations of eagles, and why? i orginally thought counting the number of nests. but i don't know why its the best way of estimating the population. can you plesae correct me if im wrong and help me with

*asked by yesudas on September 10, 2011* -
## Bio

All organisms within any ecosystem have something in common All organisms share... A.the components that make up their genetic code B.the same oganelles C.the same method of obtaining nutrients D.the ability to reproduce asexually A

*asked by Anonymous on April 21, 2016* -
## physics

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant

*asked by james on February 8, 2013* -
## chemistry

Here are 2 questions I worked out, but need them checked. Also, can't get answer to another question correct unless question 1 is correct. Would you check the first 2 and help me with the third? 1) What is the pH of a 0.05 M solution of TRIS acid (pka =

*asked by alan on February 2, 2008* -
## chemistry lab

Here are 2 questions I worked out, but need them checked. Also, can't get answer to another question correct unless question 1 is correct. Would you check the first 2 and help me with the third? 1) What is the pH of a 0.05 M solution of TRIS acid (pka =

*asked by ryan on February 2, 2008* -
## Trig

solve to four decimal places 1.3224sinx + 0.4732=0 :for all real x values solve for sinx, then arcsinx. solve for sinx, then arcsinx. so its sinx= -.4732/1.3224 and i get -.36594 but how do you get the other values for a real x Ok, use your calculator.

*asked by Kate on April 16, 2007* -
## Science

1. In an experiment performed by Gregor Mendel the results were are as follows. Two pea plants were crossed both were heterozygous for two traits, YyRr, yellow and round. The following F1 offspring were obtained, 315 round yellow, 101 wrinkled yellow, 108

*asked by Jessie on March 14, 2011* -
## Physics

Station Math Two station astronauts will each perform two 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish

*asked by Allison on December 27, 2014*

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