# Posts by elizabeth

Total # Posts: 1,051

**Math**

-7+3

**science**

if the mass of an object is 20g and the volume of the object is 100ml what is the density of the object

**calculus**

so far i have dR/R = kdt ln R = kt + C am i on the right track? what do i do next?

**calculus**

solve the differential equation. assume a, b and k are non zero constants. dR/dt = kR i don't understand how to do these problems.

**help plzzz**

I got A LINE OF CHORUS GIRLS

**proportions**

x over 100/125 = 75/225 over 4/25 what is x and how do you get the answer please

**proportions**

3/8 over 3 = x over 5/12

**spanish**

that word does not exist in spanish

**proportions**

3/8 x __ = __ 3 5/12

**6th grade algebra**

3/8 + x __ __ 3 5/12

**economics**

According to liquidity preference theory, the slope of the money demand curve is explained as follows: a. interest rates rise as the Fed reduces the quantity of money demanded. b. interest rates fall as the Fed reduces the supply of money. c. people will want to hold less ...

**Physics**

Blocks of mass m1 and m2 are connected by a massless string that passes over a frictionless pulley. Mass m1 slides on a frictionless surface. Mass m2 is released while the blocks are at rest. The pulley is a solid disk with a mass mp and a radius R. Use conservation of energy ...

**Chemistry!**

Calculate the work involved if a reaction with an enthalpy change of -2418 kJ is carried out in a vessel with a mobile, frictionless piston. Other details: the reaction is H2(g) + 1/2Oxygen2(g) yields H2O(g) with enthalpy change of -241.8 kJ/mol. The product is 180.16gH2O=10....

**3rd grade**

Please help me to rhyming words. The word is sleep. And I need to use this words: strret,please,free,whel,resd,queen,each,sneeze,people,meet,team sea.need,dream,meat. Can you please let me know which one rhym, Thank you. 3rd grader need help!!!!

**MATH- LINEAR PROGRAMMING**

THE PENN-OHIO BUILDING COMPANY BUILDS AND SELLS TWO TYPES OF HOUSES:"CLEVELAND CASTLES" AND "PITTSBUTGH PALACES". CONTRACTS CALL FOR USING TOTALS OF AT LEAST 20,000 FT OF FRAMING LUMBER AND 8,000 CUBIC FT OF CONCRETE; AND AT LEAST $9,000 FOR PROMOTION AND ...

**ecomonics**

I am trying to understand the math part of supply and demand . I am not getting it,I really need help! The question is: The demand and supply functions for sweatshirts are as follows: DEMAND Supply Quanity Quanity demanded(per period) supplied(/peri price__ price 10-----15,000...

**mth**

Add the two vote counts up and then divide 7,310 by that number (21,500) and you get 34%

**History**

Thank you Writeacher. I was looking at the wrong Article.

**History**

According to the U.S Constitution, what two duties do states have to other states?

**9th grade**

thanks ms. sue eventhough i don't know you thanks again

**9th grade**

acrostic poem on p h o t o s y n t h e s i s

**Geometry**

what do u need help on

**Geometry**

how do you solve for endpinnts??? My teacher dosn't explain it good and I doon't get it. Help Please!

**Studying for Calc**

I have a quiz on derivatives coming up and I really want to do well, but i'm not sure how to go about studying calc. i have no trouble studying for other subjects, but i'm doing poorly in calc and i need to make some changes in my study habits. any suggestions? i ...

**Calculus**

How do I use the chain rule to find the derivative of square root(1-x^2) also, are there any general hints or tips for determining when the chain rule and product or quotient rule should be used?? i'm having trouble discerning when both the chain rule and either the ...

**football**

the question reads. explain how football is organised and funded and identifying areas for improvements. 2nd question reads compare local and national provison of sport identifying areas for improvement. thank you for looking to help me.

**football**

how would this be organised and what kind of funding would be used. thanks you.

**sports**

what strategies are used to encourage football participation?? please help

**sport**

what are he factors that affect participation in sport. what are the ways in which participation in sport is encouraged. what are four key issues in sport and their impact on sport. ppleae help im lost

**sport**

what are the local provisions of sport, the national provisions of sport. how is a chosen sport oganised and funded. please help im lost

**principles of macroeconomics**

It is possible for an economy to increase its production of computers and, at the same time, to increase its production of cars if the economy a. moves downward and to the right along its production possibilities frontier and the frontier is bowed outward. b. moves upward and ...

**Ethnic Diversity**

I am in this Axia class and it is now March 2010. is this information still up to date. This is funny how everyone stummbled onto this site.

**physics**

As a science project, you drop a watermelon off the top of the Empire State Building, 320 m above the sidewalk. It so happens that Superman flies by at the instant you release the watermelon. Superman is headed straight down with a speed of 36.0 m/s. How fast is the watermelon...

**science**

soalar eclipses occor when- ? Thanks

**Math**

so whah? What is the A?

**Math**

no clue?

**Math**

What is 12x8999? pluss 80000000 and subract 3 billion? Is that possible?

**World Literature**

b. deffinetly!

**biological**

describe how the nervous systen and hormone system enable body to maintain optimum health

**business**

what are the factors that affect the decision of utilizing spot versus forward exchange rate

**Algebra 1**

Suppose students in your school arrive in groups each morning. You are the first to arrive, and you are alone, but still considered a group (consisiting of one person). The second group has two more people than the first group. The third group has two more people than the ...

**maps**

what is a ordnance suevey map??

**health and safety**

what are the risks and hazards of using a rowing machine and the diffrence between them

**Science**

all of the living and non living things in an area make up the what?

**Biology**

What is a founder effect? How do you determine the age of a mutation? How is a dispersion route determined? How founder effect, determining the age of a mutations, and dispersion route link with ethnicity and disease risk?

**ETH**

How can you cite when what you have wrote comes from yourself? Can you even do that?

**ETH**

Thank you so much!

**ETH**

how would i source a community member or leader? Can I even look this up online????

**ETH**

The final project for ETH 125 is a 1,400- to 1,750-word autobiographical research paper on race in your community. The CheckPoints and assignments in class are designed to stimulate your awareness of cultural diversity issues, so, as you craft your final paper, think about how...

**ETH**

It is asking me to list three sources and one from my community. Where am I supposed to get the other two?

**ETH**

I have the same problem as all of you all. But how am I supposed to cite the paper??????? Please help!!!!!!!!

**science**

ocompare and contrast an house with the parts of cells

**Algebra 1**

in the first step, what happened to the S? I understand how you got -5, but I don't understand what happened to S. i understand everything else, just that. would S = -5?

**Algebra 1**

Entomology is the scientific study of insects. Patty, Ronny and Sammy collected some insects for their science project. At the end of the first week of collecting, Patty and Ronny together had 89 insects, Ronny and Sammy together had 80 insects, and Patty and Sammy together ...

**AED 200**

I'm in your class as well and looking for the same info.

**sports**

in a sports development officer I am asked to provide a list of sports and resources needed to provide a range of sports in my local community how do I go about this please help.

**Math**

Eight people are put into pairs and enter a room with a large table with four pairs of chairs (2 chairs and a lot of space then 2 more chairs and a lot of space and so on) Though they could sit anywhere they had to sit with there assigned partner. In How Many ways could the ...

**public services**

what would a fitness test be for a non uniform public service be. eg life guard

**science**

a 45kg skater pushes off from a wall with a force of 234 n. what is the sklater's acceleration?

**diet**

what are the typical nutritional and energy values of the 8 main food groups

**fitness**

what would a fitness test be for a non uniform public service be??? thank you

**lifestyle**

what are the lifestyle factors that are important to gereral well being.

**Algebra 1**

ok, no one has helped me with it the first time, let's see if this time is successful. Jilian wants to buy candles in case her electricity and furnace fail. Each candle she plans to use, burns at a rate of 5mL of wax per 15 min. One of these candles has a diameter of 8 ...

**Algebra 1**

when I divide the volume by the burn rate, i get the answer 251.2 min.

**Algebra 1**

how did you get the 2261 min?

**Algebra 1**

I'm so sorry, i messed up my spelling. Each candle she plans to use, burns at a rate of 5 mL of wax per 15 min. One of these candles has a diameter of 8 cm and a height of 15 cm. How many hours will is take the candle to burn down completely? Express your answer to the ...

**Algebra 1**

Jillian wants to buy candles for winter, in case her electricity and furnace fail. Each candle she plans to use, burns at a rate of 5 mL of was per 15 cm. How many HOURS will it take the candle to burn down completely? Express the answer to the NEAREST WHOLE NUMBER. (Note: 1mL...

**public services**

hi what is the diffrence between uniform and non uniform public services

**sport and recreation**

hi my question is What is the diffrence between uniform and non uniform public services. thank you

**Never Mind**

I'm just gonna call my friend, she's really good in math. THANKS FOR ALL THE HELP!!!

**Algebra 1**

Let me write it different it's 126a times negative one ninth "a" times one seventh "a cubed" and the answer says negative 2a to the fifth

**Algebra 1**

but it's 126a(-1/9a)(1/7a3)

**Algebra 1**

(1/7a then the three)

**Algebra 1**

126a(-1/9a)(1/7a cubed) and the answer to this in my book says -2a to the fith. How does it work, i've tried multiple times.

**Algebra 1**

Bryan's chimney is rectanglular, with the short side being half the length of the long side. If Santa's belly is 58 inches in circumference, and he just fits through the chimney, what are the smallest possible dimensions of Bryan's chimney? Assume Santa's belly...

**GEOMETRY**

THE ANSWER WILL BE 16 DEEGRES.. BECAUSE THE ANSWERE WILL NOT BE X/2... BECAUSE IS NOT A BISECTOR OF THAT HOLE <... IS A I/3... SO IT WILL BE X/3.

**GEOMETRY**

ray OC bisects <AOB, ray OD bisects <AOC, RAY OE BISECTS <AOD, RAY OF BISECTS <AOE NAD RAY OG BISECTS <FOC IF THE MEASUREOF <BOF EQUALS 120 DEGREES, THEN WHAT IS THE MEASURE OF <DOE?

**Geometry**

NO..

**Roosevelt honors geometry**

ray OC bisects <AOB, ray OD bisects <AOC, RAY OE BISECTS <AOD, RAY OF BISECTS <AOE NAD RAY OG BISECTS <FOC IF THE MEASUREOF <BOF EQUALS 120 DEGREES, THEN WHAT IS THE MEASURE OF <DOE?

**Geometry**

IT MEANS THAT IS A REGULAR POLYGON THAT IS EQUANGULAR AND EQUELATELAL.

**history**

Metal casting

**Math**

Part A (3miles/1)*(5280ft/1mi)*(12in/1ft)*(1rev/15πin) is appx 4033 revolutions Part B (2.75rev/1sec)*(60sec/1min)*(60min/1hr)*(15πin/1rev)*(1ft/12in)*(1mi/5280ft) is appx 7.4 mph

**Physics (last question)**

A 800 kg projectile is fired vertically upward with an intitial velocity of 50 m/s. Assuming that no friction is present, how high above the ground will the projectile travel?

**Science**

h t t p: // en.wikipe dia. org/wi ki/ Interna ti onal_ Date _Line take out the spaces.

**Science**

There's a whole story about the farmer's workday and the purpose of the Int. Dateline. Hold on I'll get a link for you.

**Physics**

Okay thanks. I'll check it to make sure and see what I get.

**Physics**

A 500 kg car has an engine that uses only 40% of the energy from the gasoline for motion. If there is 15,000J of potential energy stored in the gasoline, how fast an the car go on the gasoline? I have no idea how to set this up. Any help?!

**history**

ancient style for what?

**Physics**

A 500 kg car has an engine that uses only 40% of the energy from the gasoline for motion. If there is 15,000J of potential energy stored in the gasoline, how fast an the car go on the gasoline? I have no idea how to set this up. Any help?!

**College Algebra**

take it like an equation. pretend the > sign is an equal sign. -2x +4 = 12. when your done, just substitute the sign back in, and flip it. (like this <)

**Physics**

A 500 kg car has an engine that uses only 40% of the energy from the gasoline for motion. If there is 15,000J of potential energy stored in the gasoline, how fast an the car go on the gasoline? I have no idea how to set this up. Any help?!

**Physics**

thanks.

**Physics**

A snowmobile does 400J of work in towing a sled to the top of a hill. During th etrip up the hill, it took 50J to overcome the work of friction. What is the potential energy of the motionless sled at the top of the hill? Well I know that the formula for potential energy is ...

**Algebra 1**

This is a five step problem: The width of a rectangle is 6 cm less than the length. A second rectangle, with a perimeter of 54 cm, is 3 cm wider and 2 cm shorter than the first. What are the dimensions of each rectangle. I just don't understand how to write the equation, ...

**Physics**

Sally applies a horizontal force of 500 N with a rope to dtag a wooden crate across a floor with a constant speed. The rope tied to the crate is pulled at an angle of 67.5 degrees. a) How much force is exerted by the rope on the crate? b) What work is done by Sally if the ...

**CHEM**

the answer is 1.95×10−34m. trust me, i got it wrong and it just told me the right answer !! :/

**Physics**

On July 19, 1969, Apollo II's orbit around the moon was adjusted to an average orbit of 111km. The radius of the moon is 1785 km and the mass of the moon is 7.3e22 kg. a) How many minutes did it take to orbit once? b) At what velocity did it orbit the moon?

**spanish**

or cafe could be describing the post office, saying that the brown post office was closed when i went there...

**spanish**

oficina de correroes = post office my bad haha.

**spanish**

I went/the office of running/[it] was closed/brown or cafeteria