Saturday

February 13, 2016
Total # Posts: 91,692

**English**

When referring to an entire class body, such as 500 students, is it correct to say freshmen or freshman?
*February 5, 2016*

**Calculus**

one top of a tower 50 m high is clock 3m in diameter. where a man 5 feet 6 inches stand on the ground so that he could have a possible view of the clock.
*February 5, 2016*

**chemistry**

what is the mass of an empty 75 mm test tube?
*February 5, 2016*

**Math**

I apologize for asking for clarification because I did not understand.
*February 4, 2016*

**Chemistry**

suppose 4.52 g H2o and 20.09 g So3 are produced. How many grams of H2So4 decompose? Wouldn't the answer be 24.61?
*February 4, 2016*

**Chemistry **

1. How could a chemistry student change NaOH(s) to NaOH(aq)? s= solid aq= aqueous 2.) How could a chemistry student change NaOH(s) to NaOH(l) s= solid l= liquid
*February 4, 2016*

**Algebra**

The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.
*February 4, 2016*

**Calculus**

Two hallways, one 8 feet wide and the other 6 feet wide, meet at right angles. Determine the length of the longest ladder that can be carried horizontally from one hallway into the other.
*February 4, 2016*

**math help**

Louis says that if the differences between the values of x are constant between all the points on a graph, then the relationship is linear. Do you agree? Explain.
*February 4, 2016*

**Math**

Zefram analyzed a linear relationship, found that the slope-intercept equation was y 3.5x 16 , and made a prediction for the value of y for a given value of x. He realized that he made an error calculating the y-intercept and that it was actually 12. Can he ...
*February 4, 2016*

**Chemistry- Dr. Bob222**

Methanol (CH3OH) is a colorless volatile liquid, formerly known as wood alcohol. It boils at 65.0 °C and has a heat of vaporization ΔHvap = 37.4 kJ/mol. What is methanol’s vapor pressure at 22.0 °C? My answer: 109.5 torr
*February 4, 2016*

**math**

In the figure xyz is an isosceles right triangle. What is the measure of xyz. A. 135 degrees B. 50 degrees c. 90 degrees d. 45 degrees
*February 4, 2016*

**English academy.chemistry**

Complete the following reaction 2F2(g) +2H2O(ĺ)=?
*February 4, 2016*

**Chemistry**

What happens to the pH of an acidic solution when it is heated
*February 4, 2016*

**English 11**

Which of the following is NOT a primary source? a. a magazine article b. a news paper article c. an analysis of a poem d. All of the above i think its A. a magazine poem but i'm not sure
*February 4, 2016*

**Calculus**

Two hallways, one 8 feet wide and the other 6 feet wide, meet at right angles. Determine the length of the longest ladder that can be carried horizontally from one hallway into the other. Thank you so much..
*February 4, 2016*

**Calculus**

Two hallways, one 8 feet wide and the other 6 feet wide, meet at right angles. Determine the length of the longest ladder that can be carried horizontally from one hallway into the other.
*February 4, 2016*

**Maths **

What is 5.5 Newton meters in pounds per square inches
*February 4, 2016*

**math**

How much sugar would you need to make a one-layer cake
*February 4, 2016*

**Calculus**

A 10-foot section of gutter is made from a 12-inch-wide strip of sheet metal by folding up 4-inch strips on each side so that they make the same angle with the bottom of the gutter. Determine the depth of the gutter that has the greatest carrying capacity.
*February 4, 2016*

**Calculus**

A 10-foot section of gutter is made from a 12-inch-wide strip of sheet metal by folding up 4-inch strips on each side so that they make the same angle with the bottom of the gutter. Determine the depth of the gutter that has the greatest carrying capacity.
*February 4, 2016*

**math**

1. You want to invest $10,000 dollars. How long will it take to double your investment at an annual interest rate of 10%, compounded continuously? (Round your answer to the nearest year)
*February 4, 2016*

**math**

A pinion gear with 10 teeth is driving a spur gear with 40 teeth. the spur gear is rotating at 160 rpm. determine the speed of the pinion gear?
*February 3, 2016*

**Science**

The answers are 1. A 2. B 3. A 4. D Just took the quick check for 8th grade science at INCA
*February 3, 2016*

**Science**

1. How does a mutation in the DNA affect the way proteins are made? A) a mutation in the DNA results in miss happen tRNA molecules ** B) a mutation in the DNA results in a chance in the mRNA, but it does affect the protein C) a mutation in the DNA affects the structure of mRNA...
*February 3, 2016*

**Stats**

Arachnophobia. A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 10 teenagers sleeping in each tent. Assume that these 10 teenagers are independent of each other.52 (a) ...
*February 3, 2016*

**Calculus**

During the initial stage of launching a spacecraft vertically, the acceleration a(in m/s^2) is a=6t^2. Find the velocity in the spacecraft after 6 seconds.
*February 3, 2016*

**High school**

. A cement manufacturer has a cost of production of $28 for each bag of cement produced and the sells a bag of cement for $40. The monthly fixed cost of the manufacturer is $180,000. a. Derive the monthly cost function of the manufacturer? b. Derive the monthly revenue ...
*February 3, 2016*

**Math**

area=length*width 30=6*width width=30/6=5feet
*February 3, 2016*

**Calculus**

Find the area bounded by the indicated curves. y=x^2, y=0, x=2
*February 3, 2016*

**Geometry**

s one side of a rectangular fish tank best represented by a point, line, plane, or ray?
*February 3, 2016*

**6th grade math**

Suzy earned $6.10 per hour in 2008 and $9.15 in 2011. How many times greater was the amount Suzy earned per hour in 2011 then in 2008? $9.15 - $6.10= $3.05
*February 3, 2016*

**Math**

What more than half of seventeen?
*February 3, 2016*

**Math**

Suzy earned $6.10 per hour in 2008 and $9.15 in 2011. How many times greater was the amount Suzy earned per hour in 2011 then in 2008 $9.15 - $6.10= $3.05
*February 3, 2016*

**Math**

The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 3 hours for a car moving at 40 mph. How long does the trip take for a car moving at 60 mph?
*February 3, 2016*

**Math**

If there were 150seats in the cafeteria and 128 were filled how many seats were left
*February 3, 2016*

**Chemistry**

So do I have to write it as 2AgNO3 instead of just AgNO3?
*February 3, 2016*

**Chemistry**

Explain in words what is happening in the reaction between copper and silver nitrate.
*February 3, 2016*

**help pleaze with science**

Describe the weather in africa
*February 3, 2016*

**Help Plz!!!!!!!!!!! History**

help
*February 3, 2016*

**Help Plz!!!!!!!!!!! History**

Select one of the environmental issues facing both the United States and Canada. Explain how the countries have worked together to solve this problem. Plz Help!!!!!111
*February 3, 2016*

**need some math help**

Gordy is a goalie for a neighborhood soccer team.He played in 65% of the 20 games this season.In how man games did he not play? Explain A.6 B.7 C.10 D.13
*February 3, 2016*

**math help**

Gordy is a goalie for a neighborhood soccer team.He played in 65% of the 20 games this season.In how man ygames did he not play? Explain A.6 B.7 C.10 D.13
*February 3, 2016*

**Math HELP**

where are you Ellen. :(
*February 3, 2016*

**Math HELP**

????????
*February 3, 2016*

**Math HELP**

so is it c?
*February 3, 2016*

**Geography**

1. Living in an ethnically diverse city can help the diffusion of culture due to the different backgrounds and way of living everyone has. You are exposed to different types of music, clothes, foods, and different points of views. You learn that there are many different types ...
*February 3, 2016*

**Geography**

What are the main benefits of living in an ethnically diverse city? What are some potential challenges of living in an ethnically diverse city?
*February 3, 2016*

**science**

what is a phase where chromatin condenses to form chromosomes
*February 3, 2016*

**Bio**

You cross homozygous spherical, heterozygous yellow plant with a dented green plant. How many do you expect from an offspring of 100 should be spherical and yellow
*February 3, 2016*

**math**

6pack = 13.98 6 ind = 13.98+3.96 = 17.94 each costs = 17.94/6 =2.99
*February 3, 2016*

**Statistics**

Arachnophobia. A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 10 teenagers sleeping in each tent. Assume that these 10 teenagers are independent of each other.52 (a) ...
*February 3, 2016*

**Government Help Please**

Which of the following statements is most accurate? 1) Members of Congress are charged with representing only the people in the district in which they live. 2) Members of Congress are charged with representing only the people throughout their entire state. 3) Members of ...
*February 3, 2016*

**Government Help Please**

Members of the House of Representatives serve two-year terms in order to: 1) protect the House of Representatives from the excesses of popular opinion. 2) stabilize the enactment of public policy with little regard for popular opinion. 3) diminish the need to consider popular ...
*February 3, 2016*

**math**

a retailer gives a cash discount of 6% on an article listed Gh cedis 40.00.if the retailer is allowed 18% trade discount, what is the retailers profit percent? Give your answer correct to 2 significant figures.
*February 3, 2016*

**physics**

12.04
*February 3, 2016*

**math**

60% =boys 40%=girls=972 (60*972)/40=boys boys = 1458
*February 3, 2016*

**Algebra**

Two planes, which are 2660 miles apart, fly toward each other. Their speeds differ by 65 mph. If they pass each other in 4 hours, what is the speed of each?
*February 3, 2016*

**Michael**

steve now give me two different ways for it for my last question
*February 3, 2016*

**singaporean math ratio**

Alex spent 3/7 of his money. He gave 1/4 of the remainder to his sister. He had 120 left. How much money had he at first?
*February 3, 2016*

**math**

there are 50 children in class,20 are girls. What part of the class are girls?
*February 3, 2016*

**Science **

Julie dissolved 20 g of sugar in a cup of water. The mass of the solution was 500 g. What volume of water did Julie start with?
*February 3, 2016*

**chemistry**

hcl + naoh ==> h2o + nacl limiting reagant
*February 3, 2016*

**Geography**

11. Which of the following represents Language divergence or Language Convergence? A. Language Divergence refers to new languages being formed when a language breaks into dialects. B. Language Convergence refers to languages forming together into one. C. Language Divergence ...
*February 2, 2016*

**Geography**

The floor plan of a kitchen floor is shown at the right. If the entire Kitchen floor is to be tilled, how many square feet of tile are needed.
*February 2, 2016*

**Geography**

2. Which of the following represents a negative aspect of language and culture? A. Vast vocabularies describe new experiences, ideas, and feelings. B. Language reflects where a culture has been. C. People who have experienced the loss of language under pressure from colonizers...
*February 2, 2016*

**ELA**

I would read the poem 2-3 times. Then break the poem down piece by piece then analyze each line. Hope this helped! :)
*February 2, 2016*

**Math**

In a city baseball league the Tigers are 1/2 games behind the pirates and the Pirates are 4 games ahead of the Cubs. How many games separate the Tigers and the Cubs? 4 behind pirates
*February 2, 2016*

**math **

Please show work 6 1/6 ÷ 2 3/10
*February 2, 2016*

**Math**

Mary is creating bouquets of flowers using 18 roses,9 lilies, and 21 carnations. She wants each bouquet to be identical with no flowers left over. What is the greatest number of bouquets that Mary can make?
*February 2, 2016*

**history**

compare Hindu and Buddhist beliefs about reincarnation and how one should live.
*February 2, 2016*

**Math**

What is square root of 15 times radical form
*February 2, 2016*

**history**

What beliefs do Buddhism and Jainism share
*February 2, 2016*

**history**

can you make it more descriptive
*February 2, 2016*

**history**

How did the Buddha say people should live
*February 2, 2016*

**Foreign Languages(Spanish I)**

Also, sentence 2: "¿Cuando vas de compras? Quiero ir contigo!" I'm just plain confused here.
*February 2, 2016*

**Foreign Languages(Spanish I)**

Find the noun, verb, and Direct Object pronoun(if there is one) of this sentence: No me gustan los precios en la tienda. I'm confused though. I put "me" for subjects, "gustan" for verb, and "los precios" for pronoun. I don't think ...
*February 2, 2016*

**Social Studies**

Thanks Demonater!
*February 2, 2016*

**math**

Will you go out with me?
*February 2, 2016*

**language**

Juan has an essay due in English on Wednesday and a page of math homework due on Friday. How should Juan approach this work? A. Get the math out of the way so he can focus on the essay. B. Split his study time between the courses from now until Wednesday. C. Focus on whichever...
*February 2, 2016*

**Pre-Calc Answer Check**

1. Find a polynomial with a zero at 3 and a zero of multiplicity 2 at -1. My answer: x^3 - x^2 - 5x - 3 = 0 2. Find the zeros and multiplicities of f(x) = x^5 - 16x^4 + 64x^3. My answer: x = 0 of multiplicity 3 and x = 8 of multiplicity 2.
*February 2, 2016*

**eglish**

Benjamin Franklin was both a statesman and an inventor.
*February 2, 2016*

**physics **

1. A 50.0 Lb box is to be moved along a rough floor at a constant velocity. The coefficient of the kinetic friction is 0.300. A. What force must you exert if you push downward on the box? B. What force must you exert if you pull upward on the box? C. Which is the better way to...
*February 2, 2016*

**Math**

A 2005 Gallup Poll found that 7% of teenagers suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 10 teenagers sleeping in each tent. Assume that these 10 teenagers are independent of each other. a) Calculate the probability that at least ...
*February 1, 2016*

**Chemistry**

The National Vaccine Information Center estimates that 90% of Americans have had chickenpox by the time they reach adulthood. We now consider a random sample of 120 American adults: a) Would you be surprised if there were 105 people who have had chickenpox in their childhood? ...
*February 1, 2016*

**math**

We never learned sin We use a different formula. I am using 30 60 90 triangle formula
*February 1, 2016*

**math**

Is it 20 feet
*February 1, 2016*

**math**

A 40 foot long escalator rises from the first floor to the second of a shopping mall. The escalator makes a 30 degree angle with the horizontal. How high above the first floor is the second floor?
*February 1, 2016*

**Science**

thank you so much! you just saved my from a very bad grade!
*February 1, 2016*

**Science**

anyone?
*February 1, 2016*

**Science**

How do you think a scientist might figure out a person’s identity from bones? My answer I think that depending on the shape and size of the bones are different for every person like you DNA. This is how they know who you are. it is also possible that your bones carry DNA ...
*February 1, 2016*

**Physics**

A jeepney slows down from 10 m/s to 4 m/s in 6 s. What is the distance covered?
*February 1, 2016*

**Do I have enough time**

Depends, if you can write that fast.. but i would say unlikely.
*February 1, 2016*

**personification**

The train_____the family through the woods and over the mountain.
*February 1, 2016*

**math**

So would I keep the diagonal as 9 and would the other sides be 9√2
*February 1, 2016*

**math**

Oh I read that wrong. SO what do I do? We leave all our answers in simplest radical form. And the formula we use is that the hypotenuse for a 45 45 90 triangle is x√2 so would i change the diagonal
*February 1, 2016*

**math**

12.72792206
*February 1, 2016*

**math**

sams square bedroom has a diagonal of 9 feet what is the length of each side of his bedroom
*February 1, 2016*