# 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 510-
## math (precalc)

Point S is 4 km west of point R, and point T is 4 km southwest of S. Find the bearing and distance from R to T. (If possible, show diagrams too, please! Thanks in advance.)

*asked by Erin on December 13, 2012* -
## Math

Suppose that you have three different length of linking cubes as shows below assume that you have as many of these length as you need but you may not take them apart. Can you make each length below using only one clout if it is possible, show more than one

*asked by Help on September 13, 2016* -
## Computers

I am supposed to type out a report, but our Microsoft Office Word program is messed up somehow. I have the letters set to Times New Roman size 8... but they're HUGE!!!!!!!! So big I can only fit about 5 sentences on a page. Also, at the end of every line,

*asked by Jenna on May 11, 2007* -
## Oracle

Im supposed to add the column Status to the Orderlines table. Its data type is VARCHAR2(30). After adding the column. i need to update the table. If OrderID is 214011, its status will be "Completed". Would like to someone to see if my solution is correct i

*asked by vsu1 on December 1, 2009* -
## French

L'amélioration clée le système d'éducation pourrait appliquer est la motivation. Beaucoup d'étudiants ont le potentiel pour exceller dans n'importe quel sujet s'ils sont motivés pour faire bien. Les étudiants devraient être encouragés à faire

*asked by Anonymous on November 24, 2007* -
## chemistry

how would you begin this question? An empty 15.0 L cylinder, .500 moles of gaseous PCl5 are added and allowed to reach equilibrium. The concentration of PCl3 is found to be .0220M. (Temp at 375K) PCl3(g) + Cl2(g) --> PCl5(g) i need to fine how many moles

*asked by Anonymous on April 28, 2007* -
## Chemistry

Unknown Acid: #2 Mass of Unknown solid acid transferred:0.414g Volume of volumetric flask: 100.00 mL Concentration of NaOH: 0.0989 M Aliqot of acid titrated with NaOH: 25.00 mL Average volume of Naoh from titration: 13.9 mL Here's where I need help: No of

*asked by Rayana on October 10, 2010* -
## physics

You are to make four straight-line moves over a flat desert floor, starting at the origin of an xy coordinate system and ending at the xy coordinates (-148 m, 66 m). The x component and y component of your moves are the following, respectively, in meters:

*asked by kristy on September 12, 2013* -
## physic

A firecracker explodes into four equal pieces (see figure below). Given the magnitude and direction of the velocity for each piece and the coordinate system shown, determine the x and y velocity components for each piece of the firecracker. (Assume the

*asked by joy on January 26, 2018* -
## PHYSICS

A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A.

*asked by Happinessdelight on May 17, 2017* -
## PHYSICS, help!

A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A.

*asked by Sunny on May 17, 2017* -
## physics

A car begins at rest at t0 = 0. The car starts moving and finally covers a distance d = 617 m in a time tf = 105 s. In a coordinate system with north being the positive x-direction, the car's motion is in the southern direction (see figure. What was the

*asked by joe 13 on September 12, 2014* -
## Physical science

The combined weight of a crate and dolly is 256N. (a)If the person pulls on the rope with a constant force of 30.1N, what is the acceleration of the system (crate plus dolly)? Assume that the systems starts from rest and that there are no frictional forces

*asked by Anonymous on February 17, 2008* -
## 8th grade history project

I am doing a history project on marketing inventions from the 1800s. I have to create a poster that includes a catchy slogan for a factory system. (remember that it is from the 1800s.) If you could help give me some ideas that would be great!!! thank you

*asked by Coco on March 17, 2009* -
## Physics

A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m. The entire system is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a final position 1.10 m

*asked by Anonymous on March 8, 2015* -
## history

X= least important cause or consequence with explanation why A,B, C = least important cause or consequence, with explanation why Y= your assertion statement can someone plz explain what the thesis formula means and how to use it my topic is Analyze the

*asked by sarah on September 14, 2015* -
## economics

what do the principles of economics influence your decision making, interaction with others, and the economy as a whole Im not sure what you are asking. Is it "what pricipals of economics affect decision making..." If so, I would use the principals of

*asked by stacy on May 15, 2007* -
## Micro Economics

Health maintenance organizations (HMOs): A. are based on the traditional fee-for-service system of paying physicians. B. charge a fixed amount per member, hire many of their own physicians, and provide health services only to members. C. are also known as

*asked by Julie on June 6, 2008* -
## Science-Bio

Can anyone help with this question? Describe three types of evidence that scientists used to develop the three doamin system? Refer to http://en.wikipedia.org/wiki/Three-domain_system for more than three types of evidence. One is differences in 16S rRNA

*asked by Ann on August 4, 2006* -
## physics

a man weighs 162 pounds, and is 69 inches tall. his forearm is parallel to the ground. he holds an 8 pound weight in his hand. the biceps has an angle of insertion of 85 degrees with a distance of 1.4 inches at insertion. the system is equilibrium. what

*asked by jh on March 29, 2017* -
## criminal law

•Should the United States combine all the police agencies into one national police organization? Why or why not? •If you must consolidate the police, would you have to do the same to the criminal justice system? How would you create and establish such

*asked by jc on February 19, 2012* -
## Math

Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)

*asked by Meredith on July 27, 2012* -
## Algebra

nathan wants to go to a hockey game with friends. Tickets are $18, but students can get discounted tickets for $12. They want to spend no more than $80, including $8 for parking. The vehicle they will take can only hold 7 people. Write and graph a system

*asked by Kay on August 14, 2014* -
## Math

Triangle ABC is circumscribed about circle O and D,E, and F are points of tangency. If AD= 5, EB= 5 and CF= 10, find the lengths of the sides of the triangle and show that the triangle is isosceles

*asked by Brianne on May 12, 2011* -
## math

show me how to calculate percentage return on the security if the payoff to the security in one year is $1000 and the security costs is $1500 today?

*asked by ron on January 11, 2013* -
## how children learn

Which of the following techniques will help to meet the student’s need for autonomy? A. Give them clear directions B. Show them a model of exactly what they’re to do. C. Give them choices. D. Give them deadlines

*asked by louise on March 22, 2010* -
## linear algebra

show that if u (dot) v = 0 for all vectors v, then u = 0. One of the Axioms an inner product has to satisfy is: x dot x >=0 where equality only holds if x = 0 So, in your problem you take the special case v = u. Then: u dot u = 0 ----> u = 0

*asked by chris on July 16, 2007* -
## geometry

triangle fgh is an obtuse triangle. the greatest angle in the triangle has a measure of (6d)degres.what are the posible values of "d". show problem

*asked by ter on October 28, 2010* -
## Maths

ABCD is a trapezium in which AB//DC and AB=70cm DC=50cm. If P and Q are respectively mid points of AD and BC. Find PQ and show that ar(trapezium DCQP)=9/11ar(trapezium ABQP)

*asked by Riya on January 6, 2017* -
## Math

Let a, b, and c be unit vectors, such that a+b+c=0. Show that the angle between any two of these vectors is 120 degrees. I proved this geometrically, but now my teacher wants a proof using vectors, and I don't know what to do.

*asked by Katie on June 7, 2016* -
## math

If someone is Typeing 360 words at 90 minutes words per minute, is getting paid 10$ per 1800 words a better pay?Please show how you got the answer cause i don't get it.

*asked by Carly on September 22, 2008* -
## coor. algebra

Okayy so my class is doing conversions annnd.I need help ALOT. 130 meters per second into miles per hour . If you answer can you show me how you got the answer and how to know of the answer is right?

*asked by cj on August 11, 2014* -
## Biochemistry

A buffer is made at pH 7.3. 0.15 M using imidazole And 1 M hydrochloric acid to form the buffer. Can you show calculations for the formation of 500 mls of this buffer?

*asked by Tommy on September 7, 2011* -
## Ms Sue geography

sorry to ask again for help but i need to include a graph in my report about the turkish earthquake but i can`t think what graph to do. it needs to show relevant information i was going to do a graph about how many people died but i don`t know if that

*asked by astelle on November 21, 2009* -
## Math Lit

It takes 6hours to paint a bedroom a) How long would it take 2 men? B)how long would it take 4men? C)how long with it take 12men? Please show me the calculates to see how you get the answer

*asked by Timi on March 5, 2012* -
## calculus

The region bounded by the curve y=1÷(1+2x) , the line X=2 , the x-axis and the y axis is rotated completely about the y-axis. Show that the volume generated is 1/2π(4-ln5)

*asked by fairuz on May 27, 2012* -
## Calculus Help Please Urgent!!!

Prove that the integral on the interval [a,b] of x is equal (b^2-a^2)/2 integral a to be (x)dx = (b^2-a^2)/2 using the definition of a Definite Integral. This is the limit of a sum approach. show steps please!!! Thank you!!!

*asked by Anonymous on April 30, 2014* -
## RES/342

Suppose you devised a training program to raise student scores on a standardized test, such as ACT, or AIMS (like in Arizona). You first administer the test to a random sample of students, record their scores, administer the training to these students, and

*asked by Hamilton on November 18, 2011* -
## health

What is major depressive disorder? A. A disorder that is enabling and helps a person function normally B. A disorder characterized by symptoms that interferes with a person’s ability to work, sleep, study, eat, and enjoy once-pleasurable activities C. A

*asked by Sarah on April 19, 2014* -
## health

What is major depressive disorder? A. A disorder characterized by symptoms that do not interfere with a person’s ability to work, sleep, study, eat, and enjoy once-pleasurable activities B. A disorder characterized by symptoms that interferes with a

*asked by Aya on August 11, 2012* -
## Algebra

Hello, could someone check my answers to the following 1.For the function f(x) = x^2 - 2x + 1, (a) find f(0) My Ans: (0) = 0² - 2(0) + 1 = 0 - 0 + 1 = 1 f(0) = 1 (b) solve f(x) = 0 My Ans: 0 = x² - 2x + 1 (x - 1)(x - 1) = 0 (x - 1)² = 0 x = 1 2. (Solve

*asked by Tamir on July 7, 2010* -
## social studies

Of the following choices, which ones are characteristics of West African society? Select all that apply. A. Arabic was the main language used when trading with other societies. B. Christianity was the only religion practiced in villages. C. Slaves had no

*asked by Hayden on March 7, 2019* -
## Social studies

Of the following choices, which ones are characteristics of West African society? Select all that apply A. Arabic was the main language used when trading with other societies. B. Christianity was the only religion practiced in villages. C. Slaves had no

*asked by HELPP!!!! on January 31, 2019* -
## social studies

Of the following choices, which ones are characteristics of West African society? Select all that apply. A. Arabic was the main language used when trading with other societies. B. Christianity was the only religion practiced in villages. C. Slaves had no

*asked by Hayden on March 6, 2019* -
## Ethics

1. Modern-day determinism tends to be based in: A. religious teachings. B. science. C. the idea of predestination. D. intentionalism. is it B 2. Which of the following is theorized to play an important role in imitative behavior and our capacity to relate

*asked by Any on February 17, 2014* -
## social studies

Of the following choices, which ones are characteristics of West African society? Select all that apply. A. Arabic was the main language used when trading with other societies. B. Christianity was the only religion practiced in villages. C. Slaves had no

*asked by [TMK] TheMainKain on November 16, 2018* -
## Math Please Help me!!!

3x^2+17x+10 *You have to factor completley but I don't know how too.Please help.! (3x+2 )(x + 5) Factoring asks this question: what two factors of 10 add to 17 when one is multiplied by three? Here is how you factor. Place two sets of parentheses. ( ) ( )

*asked by margie on January 24, 2007* -
## Geometry

I need help solving for the height of a trapezoid and finding the correct final answer for a semi circle (a half circle).In area form Here's what I have so far: Trapezoid Formula: 1/2(b1+b2)h My Answer:1/2(5+15)=10 (My bases are 5 and 15) I need help

*asked by GGGGGGGGGGGG-Geometry on April 21, 2017* -
## Physics

A 0.565 kg wood block is firmly attached to a very light horizontal spring (k = 185 N/m) as shown in Fig. 6-40. It is noted that the block-spring system, when compressed 5.0 cm and released, stretches out 2.3 cm beyond the equilibrium position before

*asked by Luke on February 16, 2013* -
## social studies

wich of the following was one of the influences of the roman republic in the framing of the constitution? 1a centralized government that provides for more order 2elected representatives who are the voice of the people 3a judicial system that is controlled

*asked by Christopher wood on October 4, 2017* -
## Physics

A car without ABS (antilock brake system) was moving at 16.5 m/s when the driver hit the brake to make a sudden stop. The coefficients of static and kinetic friction between the tires and the road are 0.553 and 0.410, respectively. (a) What was the

*asked by Anonymous on June 13, 2011* -
## Algebra

John is planning to build an arched trellis for the entrance to his botanical garden. The arch is to be in the shape of the upper half of an ellipse that is 4 feet wide at the base and 7 feet high. Find the equation for the ellipse when a rectangular

*asked by Anonymous on December 2, 2017* -
## Urgent need help on chem please someone

A researcher explores the ideal gas equation. He measures the pressure of a system at different temperatures ( keeping the volume and moles of the gas constant) and creates a plot of P versus T. What is the slope of the line that results if the volume is

*asked by Kim on January 31, 2013* -
## Health

1. The functions of the respiratory system are (choose 2) A. to pump blood to the body** B. to deliver oxygen to the body** C. to remove carbon dioxide from the body D. to absorb nutrients 2. ______ is a substance in tobacco products that causes stained

*asked by Hanna on February 19, 2016* -
## Chem

A researcher explores the ideal gas equation. He measures the pressure of a system at different temperatures ( keeping the volume and moles of the gas constant) and creates a plot of P versus T. What is the slope of the line that results if the volume is

*asked by Kim on January 31, 2013* -
## History

The ideas described in Group B would most likely be the beliefs of which political party? Group A - Favored higher protective traffis - supported a national banking system - wanted federal funds for internal improvement Group B -feared a mixed economy -

*asked by Jilly on November 10, 2014* -
## History *PLEASE*

The ideas described in Group B would most likely be the beliefs of which political party? Group A - Favored higher protective traffis - supported a national banking system - wanted federal funds for internal improvement Group B -feared a mixed economy -

*asked by Jilly on November 10, 2014* -
## Chemistry

a)How much would the freezing point change in a 2.5m solution of phenol in benzene? (freezing point of phenol is 7.40 degrees C, freezing point of benzene is 5.12 degrees C) b)How much would the boiling point change in a 1.0m solution of magnesium chloride

*asked by Danny on May 3, 2010* -
## college chemistry

The solvay process in an industrial method for preparing baking soda. In the process, CO2, NH3, H2O, and NaCl react to produce NaHCO3. If 25.0 L of carbon dioxide gas at STP and 20.0 L of ammonia gas at STP react in excess water and salt, what is the mass

*asked by Ana g on April 15, 2012* -
## physics

Here's a physics problem. I don't care about the answer, i just want to know how to do it. don't have to be too detailed.. but i don't really kno how to start this 1.) A model rocket blasts off from the ground rising straight upward with a constant

*asked by jo on September 18, 2010* -
## Physics

A weight of 15 N is located at a distance of 2.5 meters from the fulcrum of a simple lever. At what distance from the fulcrum should a weight of 20.0 N be placed on the opposite side of the fulcrum to balance the system?

*asked by mssailormouth on June 30, 2019* -
## accounting

How might a service company use accounting information systems? In what ways do these systems benefit the company? In what ways mights the system be challenging fot the company?

*asked by Anonymous on August 16, 2007* -
## Physics

Could someone help me to say this better? I have to Distinguish between atomic physics and nuclear physics, so here is what i have. which deals with the atom as a system of electron(s) and a nucleus and nuclear physics, which considers atomic nuclei alone

*asked by Amanda on November 10, 2007* -
## chemistry

The following reaction has an equilibrium constant of 0.50 at a given temperature. HCHO(g) CO(g) + H2(g) If you have 0.55 moles of HCHO(g) in a 1.0L container initially, how many moles of HCHO will be present when the system reaches equilibrium?

*asked by Adrianne on November 19, 2010* -
## psychology

Dr Smartz has been intensely engaged in a study of the twins Annete and Brad for the last two years. You would most accurately say that Dr Smartz is engaged in a,an A gender experiment B correlational study C cross-lagged method D case study I believe the

*asked by ourania on December 16, 2008* -
## Law of Multiple Proportions

Two elements, R and Q, combine to form two binary compounds. In the first compound, 14.0 g of R combines with 3.00 g of Q. In the second compound, 7.00 g of R combines with 4.50 g of Q. Show that these data are in accord with he law of multiple

*asked by Shell on November 14, 2006* -
## ALGEBRA HELP OR I AM GONNA FAIL I CANT DO THIS

compare two cell phone companies offers to see which is the better deal. Horizon Cell Phone Company Vertigo Cell Phone Company Base rate=$40 Plus every minute costs $0.05 vertigo company Base rate=$30 Plus every minute costs $0.07 Step 1: Write a linear

*asked by WORRIED on November 18, 2012* -
## PE

You need eye drops for your dry eyes. You brought only a few dollars with you to the store. Which is the best method of choosing the right eye drops to buy for your soft contact lenses? 1. Compare brands first, but purchase the one that has lots of

*asked by Help I need somebody not just anybody on February 9, 2017* -
## math -fractions

choose two pairs of fractions from the following list.use pictures,numbers and/or words to find two ways to show which fraction is greater and explain how you know.,1/3 and1/4, 1/2and3/4 ,5/8and7/10 ,3/2and4/3 ,9/5an7/4 ,2/3and5/6 ,1/8and2/10 3/4and4/5

*asked by arjel on January 25, 2011* -
## Chemistry

List the total number of each type of atoms in the following reactants. A) 2HCL + Ca(OH)2 = 6 hydrogen, 2 carbon, 2 lithium, 2 calsium, 4 oxygen B) 2Na3PO3 + 3Ca(NO3)2 This one is a bit more complicated. May any chemistry teacher show me how to do this.

*asked by Derrick on July 11, 2010* -
## Lang. Arts

Which sentence is punctuated correctly? A.Greg’s family adopted a young active puppy. B.Lisa filmed two, dramatic movies this year. C.Meg heard there is an unusual, exciting show tonight. I think it is A or C...leaning towards A?

*asked by Cassie on February 11, 2013* -
## Anatomy and Physiology

A woman who recently came home from a tropical vacation now has abdominal pain and diarrhea. Her blood test results show an elevated eosinophil level. Which organism is most likely the cause of her illness? A. Bacteria B. Virus C. Fungus D. Parasite I got

*asked by Anonymous on March 7, 2014* -
## Physics -movies

There are many Hollywood movies which show a hero or villian running, jumping, or riding a motorcycle through big plate glass windows without apparent injury. Why is this an incredible violation of Newton's laws? i can't think of really anything that makes

*asked by Maggie on December 5, 2012* -
## conics

The graph of y=x^2 is reflected in the x-axis, then stretched vertically by a factor of 2, and then translated 3 units to the left and 1 unit down. I need to write the equation of this parabola in standard and general form. I have 4 other questions so

*asked by Sandy on March 15, 2010* -
## English

heck my answers Why do writers of persuasion use rhetorical devices such as repetition? A. to link ideas or emphasize main points B. to show technical knowledge C. to obscure the underlying meaning D. to promote audience participation Not C. I say A.

*asked by Noemi on March 31, 2016* -
## Cultural Diversity

Use of cohesive reflects a speaker's ability to: A. Talk about things that are obvious B. String ideas together to show specific relationships C. Use episodic, rather than linear or hierarchical, story structures D. Coordinate implicit and explicit

*asked by Cabrina on October 26, 2013* -
## Related rate

Use differentials to find the approximate change in the surface area when the radius of the sphere is increased from 10cm to 10.2cm. I know A=4pir^2 and A' is 8pir but I'm not sure how to set it up from here. Can someone please show me all the steps

*asked by Kim on March 14, 2012* -
## Chemistry

When a 6.50g sample of solid sodium hydroxide dissolves in 100.0g of water in a coffee cup calorimeter, the temperature rises from 21.6C to 37.8C. A.) Calculate the quantity of heat (in kJ) released in the reaction. (I know the answer, but can you show the

*asked by Audrey on March 14, 2017* -
## Lang. Arts

Which sentence is punctuated correctly? A.Greg’s family adopted a young active puppy. B.Lisa filmed two, dramatic movies this year. C.Meg heard there is an unusual, exciting show tonight. I think it is A or C...leaning towards A?

*asked by Cassie on February 11, 2013* -
## English

Hey, I was wondering if I could get some help looking for figurative language in this poem, like simile, assonance, alliteration, personification, metaphor, onomatopoeia, ext. Thanks! What do I care that the stream is trampled, the sand on the stream-bank

*asked by Briana on January 10, 2010* -
## math help ??!!

just show how you found your answer... A recipe calls for 4 pounds of fruit.you have 60 ounces of fruit. A.do you have as much fruit as you need? B.if not,how much more do you need?

*asked by mathelp124576 on January 8, 2014* -
## math

Show that a function f(n)= 2n^3+n^2+6n+3 always produces a number that is divisible by an odd number greater than 1, for any natural number, n. 2n^3+n^2+6n+3 = n^2(2n+1) + 3(2n+1) = (2n+1)(n^2 + 3) what's next?

*asked by emily on December 14, 2017* -
## financial management

show me how to calculate current ratios, long-term solvency ratios, contribution ratios

*asked by june on March 28, 2012* -
## math

explain how you can use place value to show 100 in different ways.asap consider scientific notation, eg 1.00*10^2 or 100.0 or 100.00

*asked by connie on August 24, 2005* -
## Math

Explain how the answers for 20 divided by 1/7 (140), 20 divided by 2/7 (70) and 20 divided 6/7 (23 1/3) are related. Show why this makes sense.

*asked by Anonymous on October 29, 2013* -
## Chem

Use the reaction that occurs when magnesium burns in oxygen to show how a reaction might be included in more than one category of reaction.

*asked by Bubba on November 25, 2008* -
## maths

show that sin3theta-cos2theta =(1-sin theta)(4sin squared theta + 2sin theta -1)

*asked by victor2 on August 3, 2011* -
## maths

show that sin3theta-cos2theta =(1-sin theta)(4sin squared theta + 2sin theta -1)

*asked by victor2 on August 3, 2011* -
## math

Show that a function f(n)= 2n^3+n^2+6n+3 always produces a number that is divisible by an odd number greater than 1, for any natural number, n.

*asked by emily on December 14, 2017* -
## math (plz help)

Ms. Sue has not answered this question where all work must be shown. Plz, Ms. Sue do not answer this one again. Let someone else help me...plz. In a movie theater, Theater A has 30 seats in the first row. Each row has 4 more seats in it than the previous

*asked by Stacy on March 14, 2011* -
## Physiology

Pure gold has a density of 19 g/ml. If you bought a gold ring and found it had a volume of 0.3 ml and it weighed 5.7 grams, is it real gold? Show me your calculation

*asked by Jerome on January 27, 2011* -
## physics

I need help! i don't know how to do this problem. average atmospheric pressure at earth's surface is 1.01 x 10^5 N/m^2. Earth's radius is 6.37 x 10^6m. Show that the total weight of earth's atmosphere is about 5.15 x 10^19 N.

*asked by Chandler on May 28, 2013* -
## Sociology

How does modernization manifest itself in U.S. society? Is modernization likely to continue in the U.S.? oWhat are the consequences of modernization? can some one show me where i can find information on this I've read my book but it doesnt really tell me

*asked by James on January 25, 2008* -
## Calculus Help Please

Consider the implicit function ln(xy)-cos^-1(x-1)=x a. Find dy/dx. b. Find y when x = 1. c. Find the equation of the tangent line in slope-intercept form when x = 1. Show steps please! Thanks!

*asked by Tenshi on April 8, 2014* -
## science

24g of magnessium burn in air to form magnessium oxides as show below. 2Mg+o²=2Mgo how much magnessium oxide is found in the product.

*asked by shubham vishwakarma on March 9, 2018* -
## physical science

alever is used to lift a heavy load. when a to-n force pushes one end of the lever down 1.2m the load rises 0.2m. show the weight of the load is 300n

*asked by hattie on August 17, 2011* -
## Math

For a set of scores, will the interquartile range always be less than the range? Explain your answer with an example. I know the range runs from the lowest to the highest score. What would be a good example to show this?

*asked by Anonymous on October 27, 2009* -
## Physics help

an isolated container holding 5 kg of sulfuric acid is at 60 C. if 2.49x10^5 Joules of energy were transferred out of the acid, what would be the new temp. of the acid? show steps please!

*asked by HELP on November 7, 2014* -
## algebra

A jet flies with the wind at 1100 km/hr and 750 km/hr against the same wind. Find the rate of the wind and the speed of the plane show the equation for solving

*asked by denice on May 27, 2012* -
## math

If you 99 lines on a piece of paper so that no two lines are parallel to each other and no three lines pass through the same point, how many times will they intersect?. Show all your calculations leading to the answer

*asked by thabang on March 1, 2015*

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