Thursday

September 29, 2016
Total # Posts: 5,568

**Physics**

You take a trip in your car. Starting from rest, you accelerate at 1.00 m/s2 for 10.0 s, heading north. You then stop accelerating and immediately head west at a constant speed for an additional 20.0 s, at which point, you crash into a building coming to an instant stop. At ...

*April 10, 2016*

**Calculus**

A landscape architect wished to enclose a rectangular garden on one side by a brick wall costing $60/ft and on the other three sides by a metal fence costing $50/ft. If the area of the garden is 102 square feet, find the dimensions of the garden that minimize the cost.

*April 9, 2016*

**speech for history**

Traditonal africa marriage is an advantage for men only,not women

*April 9, 2016*

**Chemistry**

Both ethanol (CH3CH2OH, MM=46.07g/mol) and methanol (CH3OH, MM=32.04g/mol) have been considered as fuels for automobiles. Which is the better fuel, on a per gram basis, when burned with oxygen? CH3CH2OH(g) DeltaHf(KJ/molrxn) = -235.10 H3OH (g) DeltaHf(KJ/molrxn) = -200.66 H2O...

*April 7, 2016*

**Writing**

Please, need help. Anyone, I'll appreciated! For western history class, what did Arab culture look like before the appearance of Muhammad and Islam?

*April 4, 2016*

**English**

Is Mercutio a foil to the Nurse? I think they are not, but can you please check my answer? Thanks

*April 3, 2016*

**Math**

A girl bought mangoes at 7.50 each. There were two types of mangoes: good ones and not so good ones. She sold the good ones at 7.90 each and the not-so-good ones at 7.70 each. If she earned 34, how many mangoes did she buy?

*April 3, 2016*

**Chemistry**

A 26.8 mL sample of a solution of RbOH is neutralized by 15.71 mL of a 1.918 M solution of HBr. What is the molarity of the RbOH solution?

*April 1, 2016*

**social studies**

thx

*April 1, 2016*

**social studies **

what was the supreme court's ruling on the dred scott case?

*April 1, 2016*

**Social Studies 9**

Purpose some reasons why women were unable to keep leadership positions during the rein of terror? There is nothing about this in my textbook.

*March 30, 2016*

**math**

90% as a decimal is 0.9. If you multiply 0.9(the result on the test)x90 (how many questions there were) you get 81. Peggy got 81 questions right out of 90 which is 90%.

*March 30, 2016*

**English**

In class, we are studying Romeo and Juliet. Do you know what tragedies afflicted Peter ,the servant to the Nurse? I know that the Nurse was affected by the death of her husband and child. However, I don't know what tragedy affected the apothecary or minstrels. Was the ...

*March 30, 2016*

**english**

so (not come unless you invite him)

*March 30, 2016*

**english**

can anyone help

*March 30, 2016*

**english**

(will not) ???

*March 30, 2016*

**english**

Put parentheses around the adverb clause by placing the parentheses in their correct locations. He will not come unless you invite him.

*March 30, 2016*

**english**

parentheses around (because he canceled the party)

*March 30, 2016*

**english**

Put parentheses around the adverb clause by placing the parentheses in their correct locations. He hasn't showed up here because he canceled the party.

*March 30, 2016*

**english**

thank you

*March 30, 2016*

**english**

would it be (in case i am called away)

*March 30, 2016*

**english**

Put parentheses around the adverb clause by placing the parentheses in their correct locations. Please get my mail in case i am called away.

*March 30, 2016*

**Chemistry**

@DrBob222 I got the last question that I posted wrong and I solved it the same way. Could you show me the answer and how you got it? My test is Friday and this is a practice problem. Suppose that 30 mL of 0.5 M CsOH and 55 mL of 0.1 M NaHS are mixed. What is the K for the ...

*March 29, 2016*

**Chemistry**

Suppose that 30 mL of 0.5 M CsOH and 55 mL of 0.1 M NaHS are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HS- 1/Ka of HS- Kb of OH- 1/Kb of OH- Kb of S-2 1/Kb of S-2 Kw 1/Kw There is no reaction.

*March 29, 2016*

**Chemistry**

Suppose that 85 mL of 0.4 M NaF and 50 mL of 0.4 M HCl are mixed. What is the K for the dominant equilibrium in terms of Ka's, Kb's, Kw etc.? Ka of HCl 1/Ka of HCl Ka of HF 1/Ka of HF Kb of F- 1/Kb of F- Kb of Cl- 1/Kb of Cl- Kw 1/Kw There is no reaction.

*March 29, 2016*

**math**

a 12.0 gallon gasoline tank holds 66.0 pounds of gasoline. If this gasoline cost $3.50/gallon, what is the cost of 1 gram of gasoline.. I need help with just the set up part.. I don't know where to start.. help please

*March 29, 2016*

**Chemistry**

What is the complete ionic equation for the following reaction? Aqueous iron(III) sulfate is added to aqueous sodium sulfide to produce solid iron(III) sulfide and aqueous sodium sulfate.

*March 28, 2016*

**EASY Math**

The equation V = -2000t + 20,000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth $14,000, find the age of the car.

*March 28, 2016*

**Statistics**

How do I find a P VALUE given the Z statistic using the empirical rule? Doing this by hand

*March 28, 2016*

**Statistics**

How do I find a p value given the Z statistic using the empirical rule?

*March 28, 2016*

**Math**

The equation V = -2000t + 20,000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth $14,000, find the age of the car.

*March 27, 2016*

**English grammar**

1. Some of the pie IS missing 2. All of the pies ARE missing

*March 27, 2016*

**Calculus **

Suppose you are in a room that is a*10 meters. You can walk normally along the "a" meter long wall at "s" meters per second and crab walk in any direction at 1 meter per second. You start at one corner of the room, walk normally along the wall of length &...

*March 25, 2016*

**Calculus**

Suppose x; y, and z are positive numbers that sum to 10. What is the largest possible value of xy + xz + yz? (a) First, suppose that z is a fixed parameter. Then we have to find nonnegative numbers x and y (depending on the fixed value z such that x+y = 10-z), such ...

*March 25, 2016*

**STATISTICS PLEASE HELP**

An HR manager at a large agricultural equipment company is considering proposingputting the sales staff on 4 day - 10 hours/day work weeks, instead of their current 5day - 8 hours/day week. It is believed that this will decrease the amount of drivingthey must do during a ...

*March 24, 2016*

**Statistics**

What is the critical value in this question? Assume that we randomly sample 200 residents of Indiana and ask them if they favor having the government issue marriage licenses to same-sex couples. 104 say that the do; 96 don’t. Test at the 5% level whether the population ...

*March 24, 2016*

**math**

How can you find the volume of a rectanglar prism using a model?!!!

*March 23, 2016*

**chemistry**

3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of nitric acid are produced starting from 5.00 moles of NO2(g) and 2.00 moles of water? Please help,

*March 23, 2016*

**Chem**

How many oxygen atoms are present in 2.00 millimoles of H2SO4?

*March 22, 2016*

**magh**

suppose you put money into teo different bank accounts. In account #1 you deposit $500 and you will be earning 6% interest compounded quarterly. in account #2 you deposit $600 and you will be earning 5% interest compounded annually. Which statement below best describes the ...

*March 21, 2016*

**Chemistry**

When 28g calcium reacts with 25 grams oxygen, how many grams calcium oxide form? I have 2Ca+ 2O2= 4CaO its is not working. Stoichemistry. I have the Ca as the reactant that is limiting? Please help.

*March 20, 2016*

**Accounting**

use the following information to complete the partial worksheet for bills company

*March 17, 2016*

**math **

Find c and I. Choose the right answers. Hint: c = total of payments - amount financed Amount Financed (m) = $3,500 Number of Payments per year (y) = 12 Number of Payments (n) = 36 36 payments of $104.50 each. To the nearest penny, total interest(c) = $ To the nearest tenth, I =

*March 16, 2016*

**Health**

it could be either a or b is it or would it just be a

*March 16, 2016*

**math**

A shirt is on sale for $12.75.this is 15percent off the original price.what was the original price of the shirt?

*March 9, 2016*

**Math**

uh idk

*March 8, 2016*

**English**

I think its D I'm not sure

*March 8, 2016*

**English**

Roosevelt is arguing that journalists must only attack misconduct when they have valid proof. They must not dig just for the sake of digging; it is offensive to good Americans. Which statement most effectively argues against this claim? a) Even sensational journalism is ...

*March 8, 2016*

**math **

In the theory of relativity, the mass of a particle with speed v is m=f(v)=m01−v2/c2√, where m0 is the rest mass of the particle and c is the speed of light in a vacuum. Letting m0=1, find f−1(10). f−1(10)=

*March 8, 2016*

**Math**

A car fits onto a golden rectangle with a length of 12 ft. What is the cars width? Write your answer in simplified radical form and rounded to the nearest tenth of a foot.

*March 7, 2016*

**Statistics**

A bolt manufacturer is using a hypothesis test with α = 0.01 to see if the diameter of their 0.75 cm diameter bolts are being manufactured properly. The goal is to have the average bolt diameter be 0.75 ± 0.0075 cms.

*March 7, 2016*

**Statistics**

Drug clinical trials are analyzed using hypothesis testing methods. As we’ve discussed, the null hypothesis in the effective stage of such trials is that the drug being tested is ineffective. The alternative, of course, is that the drug is effective. Explain why such ...

*March 6, 2016*

**Statistics**

Recall that the power (1 – β) of a hypothesis test is the probability that we will reject the null hypothesis given that it is false; that is, the probability that we will correctly reject the null hypothesis. All other things being equal, which of the following ...

*March 6, 2016*

**College history**

The choice are A.) elementary school B.) Adulthood. C.) high school and D.) College That's why I'm confused I don't know if it's saying when it started or when it was mostly studied

*March 5, 2016*

**College history **

Social order and norms of behavior are often learned in what era or school time? I think it's either college or adulthood

*March 5, 2016*

**History**

A Story that contains little or no policy content and is not related to the days event but that commonly discussed popular personalities and is designed to draw greater viewer interest is what? I think is biased media coverage

*March 5, 2016*

**Science**

How does lustre affect the amount of heat being absorbed by a black can

*March 4, 2016*

**MATH**

The answers don't seem to be correct?

*March 1, 2016*

**MATH**

Suppose f(x)=3x−2. Then f(1) = f(t) = f(x2) = f(f(x)) =

*March 1, 2016*

**math**

25?

*March 1, 2016*

**matth**

Let f(x)=6x−1 and g(x)=3−x2. Evaluate the following: 1. f(g(0))

*March 1, 2016*

**English II**

what was the correct one?

*March 1, 2016*

**Math**

A cheese pizza costs $5. Additional toppings cost $1.50 each. Write and graph an equation in two variables that represents the total cost of a pizza.

*February 29, 2016*

**Math 7B**

It was 1. A 2. A

*February 29, 2016*

**Math 7B**

A bag contains 4 white, 3 blue, and 5 red marbles. 1. Find the probability of choosing a blue marble, then a red marble if the marbles are not replaced. a. 5/44 b. 15/35 c. 2/3 (i pick this) 2. 1/15 2. Find the probability of choosing two white marbles in a row. a. 1/11 b. 1/9...

*February 29, 2016*

**Art 6B**

It was D

*February 29, 2016*

**Art 6B**

Ok thank you

*February 29, 2016*

**Art 6B**

For years, community art was created by a professional for the enjoyment or education of a public group. how did the definition change in the nineteenth century? a. community art was now also exibited in museums. b. community art was now also created to spark a revolution. c. ...

*February 29, 2016*

**Music**

What's the scale of the G?

*February 28, 2016*

**chemistry **

what would be observed when combining an aqueous mixture of: potassium carbonate and hydrochloric acid, zinc chloride and silver nitrate, magnesium chloride and sodium hydroxide, ammonium nitrate and sodium hydroxide?

*February 28, 2016*

**chemistry**

1.what are the functions of pH?

*February 28, 2016*

**Biology please assist**

1. Where is pH found? 2.what is the function of pH? 3.what principle guides the phenomenon of pH? 4.what is acid rain ?how is it related to pH values?

*February 27, 2016*

**finance**

A 10-year bond has a coupon rate of 7% annually and a principal payment of $1,000.00. Other similar bonds are paying 9% annually. To determine the value of this bond you must:'

*February 27, 2016*

**Writing**

Why is it hard to write? I've always had trouble with it, I thought that by now I would've gotten better at it, but unfortunately, I'm even worse than before.

*February 26, 2016*

**Writing**

Help, please!!!! I need to write a paragraph How do I write a good one? What types of paragraphs are there?

*February 26, 2016*

**History**

What led to the fall of the Roman Empire in Western Europe, specifically in terms of political instability, economic and social problems, weakening frontiers, and the split of the empire. This is a study guide question. I just need some help figuring out a good response to ...

*February 25, 2016*

**Physics**

The projectile launcher shown below will give the object on the right an inital horizontal speed of 9.40 m/s. While the other object will be dropped with no initial speed. The objects are initially 114 cm above the ground. What will be the difference in the speeds of the two ...

*February 24, 2016*

**English**

Might something as this... A thesis statement: Scientific advances do have an enormousness repercussion which leads humanity to its darkest fears and anxieties.

*February 22, 2016*

**English**

Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific advances and/or ...

*February 22, 2016*

**English**

Okay, but each one of them: 1 Frankenstein 2 Zombie, will have its own body paragraph or not?

*February 22, 2016*

**English**

Help, Please! I don't quite understand what is asking in this assignment (Essay) Task: Write an essay that compares Frankenstein and his creation to a modern zombie story with the focus on how a monster might be used as a metaphor for science or scientific advances and/or ...

*February 22, 2016*

**COLLEGE HELP LEASE PLEASE !!!!!!!**

I know but someone told me that there a tuitions for different majors I dont see that @ mercy college

*February 22, 2016*

**COLLEGE HELP LEASE PLEASE !!!!!!!**

Mercy college is what im talking about

*February 22, 2016*

**COLLEGE HELP LEASE PLEASE !!!!!!!**

Is graduate tuition is tuition for graduate school? I want to become a nurse. Graduate tuition Nursing $828.00 per credit But here the tuition is $17,166 The annual total list price cost to go to Mercy was $31,928 I'm sooo confused please help. Does it cost more than $31,928?

*February 22, 2016*

**LOGS**

The decibel level of a sound is given by dB=10log(EE0), where E0=10−12wattsm2 and E is the intensity of the sound. (a) Find the intensity of a 80-decibel sound. E= watts per square meter. (b) How many times more intense is the sound from (a) than a 50-decibel sound? A ...

*February 21, 2016*

**civic education**

Nigeria,Ondo State

*February 21, 2016*

**Science**

The half-life of randon-222 is 8 days. What was the original mass if 6 grams remains after 24 days?

*February 19, 2016*

**Chemistry**

A 10.0 L container contains 1.0 L of solution of a gas. Assume [gas]=1.5x10^-4 M in solution when 2 mol of gas remain in gas form. If 1 mol of gas is removed from the gas phase, what will be the new concentration of the gas in solution? What is the value of k?

*February 15, 2016*

**Math**

the amount (in milligrams) of a drug in the body t hours after taking a pill is given by A(t)=30(0.8)t . (a) What is the initial dose given? (b) What percent of the drug leaves the body each hour? Percent: (c) What is the amount of drug left after 9 hours? (d) What is the ...

*February 14, 2016*

**Physics**

The displacement of a block of mass 439g 439 g attached to a spring whose spring constant is 66N/m 66 N m is given by x=Asin(ωt) x A s i n ω t where A=12cm A 12 c m . In the first complete cycle find the values of x x and t t at which the kinetic energy is equal to ...

*February 10, 2016*

**Physics Grade 10**

The speed limit near a school is 30km/h but Joe Cool thinks he can ignore it. He is driving at 60km/h. To make matters worse, he is talking on his cell phone. Suddenly a child rides his bicycle out of school grounds and across the road on the pedestrian crossing. The maximum ...

*February 10, 2016*

**Personal learning plan (english?)**

What are some visual, auditory, reading/writing and kinaesthetic learning activities done in high schools?

*February 10, 2016*

**science**

Imagine a Rip van Winkle type who lives in the mountains. Just before going to sleep, he yells, "WAKE UP", and the sound echoes off the nearest mountain and returns 7.6 hours later. Find the distance between Rip and the imaginary mountain. I have this equation s= v(...

*February 7, 2016*

**physics**

A bullet of mass 0.08kg is fired horizontally into a 10kg block which is free to move. If both bullet and block move with a velocity of 0.6m/s after the impact, find the velocity with which the bullet hits the body

*February 7, 2016*

**English**

Please, I don't want to complicate my life, so, what's the best effective way to write a topic sentence for my body paragraphs?

*February 7, 2016*

**Calculus**

Using the definition of the derivative, find the equation of the tangent line to y=2x-1/2 at (1/2,-1) Thanks!!

*February 5, 2016*

**Physics- Help please!**

A guy riding a buffalo is chasing you at a top speed of 50 km/h, you are well ahead of the rider by 2 km, but your speed is only 20 km/h. How much time do you have to come up with a better plan?

*February 4, 2016*

**Physics**

A guy riding a buffalo is chasing you at a top speed of 50 km/h, you are well ahead of the rider by 2 km, but your speed is only 20 km/h. How much time do you have to come up with a better plan?

*February 4, 2016*

**Introductory Accounting **

The question is Burlin company starts the year with $188,000 in assets and $37,600 in liabilities. Net income for the year is $47,000, and no dividends are paid. How much is owners' equity at the end of the year? So what I thought what i would have to do is add the 188,000...

*February 3, 2016*

**Social Studies**

That is not a valid link

*February 1, 2016*