Saturday

February 28, 2015

February 28, 2015

Total # Posts: 78,269

**ratios**

Write three ratios equal to 7/2
*January 10, 2015*

**ratio **

Write a ratio for the situation in three ways comparing the first quantity to the second quantity A zoo has 14 monkeys and 18 chimpanzees
*January 10, 2015*

**maths**

24 out of 60 pupils lik red. What angel would be used for red on a pie chart?
*January 10, 2015*

**maths**

Work out: 2^3 + root 49
*January 10, 2015*

**Physics**

A bath toy is floating stationary in water such that half of the toy is above water and half of the toy is below the water. A kid pulls the toy 3.9 cm down into the water and then lets go. The toy then proceeds to bob up and down. It bobs up and down 26 times in a minute. NOTE...
*January 10, 2015*

**Chemistry.**

you want a mole ratio. Take the smallest number, .0045, divide it into each of the other moles... O 1 C 2 H 4 C2H4O is the empirical formula, and I would even on this guess structure as CH3OH
*January 10, 2015*

**chemistry**

this is what I have is it good: this is the question: Explain how one of the major concepts learned in CHM 111 applies to everyday life. One major concept that was learned in CHM 111 that applies to everyday life is stoichiometry. Stoichiometry is founded on the law of ...
*January 10, 2015*

**chemistry**

stoichiometry how does it relate to real life?
*January 10, 2015*

**Physics and Maths**

A sphere of uniform density d1 has a radius R. It also consists of a hollow sphere of radius r. the sphere floats slightly on water of density d2. Find r.
*January 10, 2015*

**math **

What measures the spread of data?
*January 10, 2015*

**Maths **

A is due East of B. What is the bearing of B from A?
*January 10, 2015*

**Maths **

The probability of getting heads on a biased coin is 0.6. what is the probability of getting tails on this coin?
*January 10, 2015*

**statistic and probability**

There are two independent multiple-choice quizzes where quiz 1 has eight questions and quiz 2 has 15 questions. Each question in the first quiz has four choices and each question in the second quiz has five choices. Suppose a student answers the questions in the quizzes by ...
*January 10, 2015*

**statistik and probability**

Two samples of sizes 8 and 10 are drawn from two normally distributed populations having variances 21.8 and 36, respectively. Find the probability that the variance of the first sample is more than twice the variance of the second sample. Interpret its value.
*January 10, 2015*

**Eng225 introduction to film **

Which of the following is generally true of the role of actors in movies
*January 9, 2015*

**Chemistry**

Answer contains three significant figures. Molarity=moles/Volume (L) Calculate moles of CaCl2, followed by moles of Cl2: [19.6g*(1 mole/110.984g)]=-moles of CaCl2 moles of CaCl2*(2 moles of Cl/1 moles of CaCl2)= moles of Cl moles of Cl/0.500L= molarity of Cl
*January 9, 2015*

**History help!!!**

Thanks! can you delete this post?
*January 9, 2015*

**History help!!!**

What are the benefits of drilling for crude oil, or petroleum, in the US and Canada?
*January 9, 2015*

**Math**

You want to make an investment in a continuously-compounding account over a period of three years. What interest rate is required for your investment to double in that time period? Round the logarithm value and the answer to the nearest tenth. is it 2.3
*January 9, 2015*

**Quick english help**

Is it necessary to capitalize colleagues in a sentence?
*January 9, 2015*

**Math**

Which of the following is another representation of the polar coordinate -9, -90 degrees? Is it 9,270 degrees
*January 9, 2015*

**science**

are these right plz tell me
*January 9, 2015*

**Math**

Find the quotient of the following expression: 7(cos 5pi/6 +isin 5pi/6) / -2(cos pi/2 +isin pi/2) I got -7/4+ 7 square root 3/4 i. Is this correct?
*January 9, 2015*

**LA - 1 question**

B is the correct answer
*January 9, 2015*

**Math**

Express -5(cos pi/2 +isin pi/2) in rectangular form. I got -5i. Is this correct?
*January 9, 2015*

**Math**

Find the following product -5(cos pi/3 +isinpi/3)*2(cos pi/6+ isin pi/6' I got 10i. is this correct?
*January 9, 2015*

**English **

If you are said to have blank, then you are full of energy, or the breath of life. What is the blank?
*January 9, 2015*

**physics**

weight of a person in newton on mars who weigh 882N on earth ( g = 9.8m/s^2). weight of person on earth who weighs 333N on mars.
*January 9, 2015*

**physics**

weight of a person in newton on mars who weigh 882N on earth ( g = 9.8m/s^2)
*January 9, 2015*

**physics**

A vertically hanging bungee cord has a length of 6 m and k = 50N/m. What is the new length of the bungee if a student of mass 40 kg is suspended from the lower end?
*January 8, 2015*

**psychics**

physics sorry
*January 8, 2015*

**6TH GRADE MATH**

y=11+(15/3) Y=11+5 Y=16
*January 8, 2015*

**Math**

How to simplify e^27x?
*January 8, 2015*

**math**

The perimeter of a sheet of paper is 38 cm. If the width is 8 cm what is the length of the paper? P = 2L + 2W 38 = 2L + 2(8) 38 = 2L + 16 22 = 2L 11 = L is 11 the answer
*January 8, 2015*

**English (Dracula)**

its fine i will ask my teacher
*January 8, 2015*

**English (Dracula)**

yes, but it doesnt explain his history in the first few chapters
*January 8, 2015*

**English (Dracula)**

i know the answers to the last two questions. But i cant find anything about his history in the first few chapters
*January 8, 2015*

**Pre-Calc/Trig**

yes, thanks i can :)
*January 8, 2015*

**Pre-Calc/Trig**

Complete the following for each system that involves one or more quadratic equations: Solve the system algebraically 7y^2-5x^2+20x=3 5x^2+21y^2=209
*January 8, 2015*

**math**

(√3x-3)-(√x-3)=√x
*January 8, 2015*

**physics**

An MRT Train accelerates at a rate of 2.75 m/s^2 from rest for 3.00 seconds.How fast will the train be moving after that time?
*January 8, 2015*

**Physics and Math**

The answer is the spring is depressed by 1.6m
*January 8, 2015*

**Physics and Math**

The spring is depressed by how much? The answer is 1.6m. But how?
*January 8, 2015*

**Physics and Math**

A small ball with a mass of 1 kg rolls down a long frictionless inclined ramp, which is at an angle 3o Degree above the horizon. A linear spring, whose length is not negligible, is attached to the bottom of the ramp. The ball is released from a distance of 1 m above the spring...
*January 8, 2015*

**Algebra**

1/(x-5) = 7/2x x = 7?
*January 8, 2015*

**Algebra**

Does x(x-7) = 0 have two solutions, 0 and 7?
*January 8, 2015*

**Algebra**

1/8 + 2/t = 17/8t Is t = 1 the only solution?
*January 8, 2015*

**ELA**

I'd go with B. From the passage, it does not seem like the Jews thought they would stay forever in the ghetto.
*January 7, 2015*

**Chem-Stoich**

Thanks, this helped me figure out what I needed to do, I got 0.25% CaCl2
*January 7, 2015*

**math**

The perimeter of a sheet of paper is 38 cm. If the width is 8 cm what is the length of the paper?
*January 7, 2015*

**sixth grade math**

Cfkjfjghthcbbn
*January 7, 2015*

**Physical Science**

0.04 m/s
*January 7, 2015*

**Math**

What is the period of the function? f(x)=sin(1/7)x I think its 2pi
*January 7, 2015*

**Math**

Thanks for telling me
*January 7, 2015*

**physics**

you can use the idea that the kinetic energy equals the amount of work of friction (Force of friction*d). Use F(force of friction)= (m(v^2))/2d ...so F=(.005*(360^2))/2*.19= 1705.263 N you use .005 because the mass was given in grams and the unit of N is kg*m/s so you have to ...
*January 7, 2015*

**physics**

A riﬂe ﬁres a(n) 5 g bullet with a muzzle velocity of 360 m/s into a block of wood. The bullet comes to rest after it has made a(n)19 cm deep hole in the wood.A riﬂe ﬁres a(n) 5 g bullet with a muzzle velocity of 360 m/s into a block of wood. The ...
*January 7, 2015*

**Animal Farm**

Was Snowball really a criminal, like Napoleon says, or is this just a false accusation?
*January 7, 2015*

**Psychological Statistics **

For a population with a mean of 80 and a standard deviation of 12, what is the Z score corresponding to an individual score of 92
*January 7, 2015*

**british lit**

how to mark the syllables him still must serve,him still obey
*January 7, 2015*

**math**

Sara has 6 necklaces, but her mother will only allow her to wear two at a time. How many different ways can Sara wear two necklaces? A. 30 B. 15 C. 360 D. 12
*January 7, 2015*

**Algebra**

For log(4)(3x + 4)^5 = 15, do I have to expand (3x + 4)^5, or is there a faster way?
*January 7, 2015*

**math**

110
*January 7, 2015*

**math**

Jessica buys a lamp that costs $35 and a table that costs $75.00. If the tax rate is 10%, what will be the total cost of the lamp and table?
*January 7, 2015*

**Math**

(x^2(1-x))/((x-1)(2x-3)) Can this be simplified as -x^2/(2x-3)? If so, how?
*January 7, 2015*

**ap chemistry**

bruh
*January 7, 2015*

**Math**

3/4 75%
*January 6, 2015*

**math**

You plan to construct a brick wall measuring 14.5 ft. in length, 5.5 ft. high, and 0.5 ft. in width. If a brick measures 6 in. x 4 in. x 2 in., how many bricks will you need? (Remember to round up.)
*January 6, 2015*

**math**

make up a set of at least twelve numbers that have the following landmarks maximum 8 mode 6 range 6 median 5
*January 6, 2015*

**math**

a piece of wire is 0.75m long how many pieces of wire 0.5m long, can be cut from it? What is the remaining lenght
*January 6, 2015*

**L.A**

Oh okay. I see. Thank you. I just couldn't decide whether it was B or D but it's b. thanks
*January 6, 2015*

**L.A**

which of the following is part of the novels rising action? ? A. johnny's growing role delivering messages and acting as a spy for the whigs B. Dr. Warrens imminent surgery on johnnys hand C. The battle on the Lexington green on the morning of April 19, 1775 D. Rabs death ...
*January 6, 2015*

**math**

Carrie and Krystal are taking a road trip from Greenville to North Valley . Each person has her own map,and the scales on the map are different. A.On Carrie's map, Greenville and North Valley are 4.5 inches apart.The scale on her map is 1 inch=20 miles. How far is ...
*January 6, 2015*

**science**

describe a process that could cause an uncomformity
*January 6, 2015*

**L.A**

Thank you for helping!
*January 6, 2015*

**L.A**

Choose the meaning that best describes the word in the italics. *pompous is the word thats in italics. His *pompous* behavior irritated his friends, especially since accomplishments were few and far between. A. sheepish B. arrogant C. unassuming D. aggravating is it D..? or B
*January 6, 2015*

**Math**

One afternoon, kassims sandwich shop sells 15 sandwiches in 45 minutes. If the shop continues to sell sandwiches at the same rate, about how many sandwiches will the shop sell in 3 hours?
*January 6, 2015*

**LANGUAGE ARTS !! 8TH GRADE**

The answers are... 2. a 3. d 4. b 5. c
*January 6, 2015*

**Healthcare**

What are some programs in universities if you want to become an endocrinologist
*January 6, 2015*

**math**

isn't 39-15 24?
*January 6, 2015*

**math**

there are markers every 1000 feet along the side of a road. While driving, Mai passes marker number 15 at 10:05 and marker number 39 at 10:11. find mai's average speed feet per minute. use dimensional analysis to check the reasonableness of your answer.
*January 6, 2015*

**math**

if a wall in a 1/4 in. scale drawing is 6 in. tall, how tall is the actual wall? please help
*January 6, 2015*

**ap calc**

If y= (e^x-e^-x)/(e^x+e^-x), then y'= Please help i know how to get the derivative i just can not simplify.
*January 6, 2015*

**math**

Problem- Ms.Kelly puts more than 5 apples in each bag. Write an inequality to represent the number of apples in a bag. My questions- would it be n>5?
*January 6, 2015*

**math**

This table shows the numbers of students in different classes that are in the math club. Students in math club Boys / Girls Mrs.Smith 3 / 4 Ms.Jones 4 / 6 Mr.Brown 3 / 4 a. What fraction of the students in the math club are boys from Mrs. Smith’s class? b. What fraction ...
*January 6, 2015*

**Physics**

tarzan, mass 85 kg, swings from a tree on the end of a 20. m vine his feet touch the ground 4.0m below the tree. how fats was he moving when he reaches the ground
*January 6, 2015*

**Math**

((2x)/(x-1)) - (9/(x-2)) Is the answer (2x^2 - 13x + 9)/(x^2 - 3x + 2), or can it be simplified further? I got an answer to this question before, but it seems like they did it with 9x instead of 9.
*January 6, 2015*

**Physics**

A lunar lander in powered descent at 100 m above the surface of the moon slows down from a velocity of 20 m/s to 0.5 m/s at constant acceleration. Assume that the lander has a mass of 20,000 kg and that burning the fuel does not change the mass. Answer the following questions...
*January 6, 2015*

**Health**

What are some things in a house that increase risk of poisoning?
*January 6, 2015*

**French**

Does ne + avons equal n'avons?
*January 6, 2015*

**Algebra PLEASE?**

All you need to do to get an irrational is take the square root of a number that is not a perfect square. None of the numbers are perfect squares. After you do that you can do any closed operation you want with the resulting irrational and the two other rationals and you will...
*January 6, 2015*

**math**

Ms.Sue is right, the next 3 would be 0.93,1.02, and 1.11
*January 6, 2015*

**Language arts**

The rising action of a plot is the series of events that build up and create tension and suspense. so, it would be b or d
*January 6, 2015*

**Accounting, maths literacy, business studies, economics**

*January 6, 2015*

**math**

$12.07
*January 6, 2015*

**Math**

It is 9, not 9x.
*January 6, 2015*

**Math**

((2x)/(x-1)) - (9/(x-2)) Is the answer (2x^2 - 13x + 9)/(x^2 - 3x + 2), or can it be simplified further?
*January 6, 2015*

**Math**

2/(x + 4) + x/(x - 3) Is the answer (x^2 + 6x - 6)/(x^2 + x - 12), or can this be simplified further?
*January 6, 2015*

**Civics**

I think it is C
*January 5, 2015*

**Civics**

Why limit the jurisdiction of the Supreme Court? A. People prefer to go to local courts because they don't have to travel so far. B. The justices sitting on the court have a limited amount of time. C. Congress made decisions that limited the jurisdiction. D. The U.S. ...
*January 5, 2015*

**history**

What event started Lenin on the path to becoming a communist revolutionary?
*January 5, 2015*

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