Tuesday

December 6, 2016
Total # Posts: 5,627

**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*

**math**

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 don't 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*

**Social Studies**

Hi, I'm having a really hard time understanding this concept. I know the answers because my teacher told us them but I don't know why they are the answers. Could you explain them please? 1. Professor Roth's rule is that any student who uses a cell phone in class ...

*February 1, 2016*

**science **

If exponential growth occurs in the population of a species of predator, the population of its prey will most likely decrease quickly. increase slowly. stay the same. experience exponential growth.

*February 1, 2016*

**Physics**

A 300g particle oscillating in SHM travels 11cm between the two extreme points in its motion with an average speed of 65 cm/s. a) Find the angular frequency b)The maximum force on the particle c)The maximum speed

*January 31, 2016*

**Science**

Describe one observation astronomers use to show that the universe is expanding

*January 31, 2016*

**Science**

-Explain how and when the universe formed according to the big bang theory? -Explain how and when our solar system formed? -Describe one observation astronomers use to show that the universe is Expanding?

*January 31, 2016*

**maths/physics**

4. Write down a diﬀerential equation to express each of the following relationships: (a) The rate at which the volume of a sphere changes with radius is proportional to the square of the radius. (b) Gravitational attraction F between two given bodies of masses m1 and m2...

*January 28, 2016*

**Physics (**

3. Terminal velocity of an object in freefall is given by Vt = root 2gMA/Cdñ , where g is gravitational acceleration,Cd is the coefficient of drag, p is air density, and MA is the ratio M/A of mass M to ‘downwards facing’ area A. For a falling sphere of radius...

*January 28, 2016*

**Physics (Gravitation)**

sorry, to correct the question. Ve= root 2GM/r Where G is the gravitational constant 6.8x10^-11, M is 10^22 + r^4 if possible, please can you provide a step by step answer to the question

*January 28, 2016*

**Physics (Gravitation)**

2. To leave the gravitational ﬁeld of a planet, a space rocket must be launched at an escape velocity of: ve =r2GM r , where G is the gravitational constant G ¡Ö 6.8¡Á10−11Nm2/kg2, M is the mass of the planet and r is its radius. Suppose ...

*January 28, 2016*

**ELA**

Explain 1 External and 1 Internal conflict From the book Found by: Margret Peterson Haddix. Make sure it includes: who it involves and how it is solved.

*January 25, 2016*

**math **

I am an even. number the sum of my digits equals 7. I am greater than 40 and less than 50. what number am I?

*January 25, 2016*

**Science**

1. Which of the following traits is acquired? A.) The number of petals that grow in a plants flower B.) the wing shape of a wild bird C.) The ability of some gorillas to learn sign language** D.) A cheetah’s ability to run faster than any other land animal 2. The height ...

*January 25, 2016*

**Help Please!!!!**

ELA.. English Language Arts

*January 24, 2016*

**Help Please!!!!**

Explain 1 External and 1 Internal conflict From the book Found by: Margret Peterson Haddix. Make sure it includes: who it involves and how it is solved.

*January 24, 2016*

**Help...**

What are the major stars of Gemini?? Name 4 of them... Explain the myth behind the constellation "the twin"

*January 22, 2016*

**Help....**

-list some of George Washington precedent -describe Thomas Jefferson achievement before becoming president of the United States - why was Lewis and clark expedition important?

*January 21, 2016*

**Science**

Thank you so much I got them all right!

*January 21, 2016*

**math**

Find the domain of the given function f. (Enter your answer using interval notation.) f(x) = 1/(x2 − 8x + 16)

*January 20, 2016*

**math**

A right triangle is drawn on a coordinate plane. Its base is the line segment between (2, 2) and (9, 2). The hypotenuse is a line segment that begins at (2, 2) and has slope 1.25. Find the coordinates of the third point.

*January 20, 2016*

**Precalculus**

Find every point on the horizontal line y = 5 that is a distance of 5 units away from the point (6, 1).

*January 20, 2016*

**French**

are these sentences correct J'ai mangé des pâtes delicieuses J'ai mangé de delicieuses pâtes

*January 20, 2016*

**Help....**

Should cellphone be used at school everyday!!! Why or why not...

*January 19, 2016*

**Physics (Feilds)**

Show that the gravitational potential at the surface of the Earth is -64 MJ kg-1, given the surface gravitational feild strength is 9.8 N kg-1 and the mean radius of the Earth is 6400 km.

*January 19, 2016*

**chemistry**

describe what happen when a piece of wet red litmus paper is passed through a hydrogen gas.

*January 17, 2016*

**chemistry**

describe what happen when a piece of wet red litmus paper is passed through a hydrogen gas.

*January 17, 2016*

**Chemistry**

At pH 9 what will the ratio of ammonium to ammonia be? The pKa of ammonium is 9.24?

*January 17, 2016*

**Physics**

Hi Damon Can you please explain how you got 19 ? and why is it being divided by 1.7 ? Thanks! Sarah

*January 17, 2016*

**Physics**

The diameter of our disk-shaped galaxy, the Milky Way, is about 1.7E+5 light-years (ly). The distance to the Andromeda galaxy, which is the spiral galaxy nearest to the Milky Way, is about 1.9E+6 ly. If a scale model represents the Milky Way and Andromeda galaxies as dinner ...

*January 17, 2016*

**Algebra/math**

A teacher is showing her class how to fold a square piece of paper to create a paper cup. One of the steps is shown below. According to the measurements, what is the length of x, in inches?

*January 16, 2016*

**Math**

A cookie recipe calls for 2/3 of a cup of flour and makes half a dozen cookies. How many cookies can you make if you have 9 cups of flour and want to use it all? I came up with an answer of 81 cookies by using a proportion. 2/3 over 6 (because half a dozen cookies is 6 cookies...

*January 15, 2016*

**Math**

The record for the fastest speed on a bicycle is 133 kilometers per hour. How long would it take a person traveling at this speed to travel 365.75 kilometers

*January 15, 2016*

**Chemistry**

The concentration of barium ions in any solution can also be determined via gravimetric analysis. An impure sample of barium nitrate with a mass of 1.234 g, is completely dissolved in water and the resulting solution is reacted with an excess of aqueous sodium sulfate. A ...

*January 13, 2016*

**Chemistry**

The concentration of barium ions in any solution can also be determined via gravimetric analysis. An impure sample of barium nitrate with a mass of 1.234 g, is completely dissolved in water and the resulting solution is reacted with an excess of aqueous sodium sulfate. A ...

*January 13, 2016*

**physics**

Assume the truck is going at v0 = 25 m/s, and you're 20 m behind the truck. You decide to accelerate at a = 1.0 m/s2 to pass the truck. To pass safely, you also want to pass the truck by 20 m before moving back to the lane. Part A ) Estimate the time interval needed to ...

*January 13, 2016*

**Physics**

Thank you so much!!!

*January 13, 2016*

**Physics**

what would I solve for when I do the conservation of momentum at the bottom of the block with the bullet?

*January 13, 2016*

**Physics**

A 0.15kg bullet is fired into a 1.85kg block that is hanging from a 45cm string. What minimum initial bullet speed is required if the bullet and block are to make one complete revolution? Please show all work. I need this question answered as soon as possible!

*January 13, 2016*

**physics**

A ball is thrown up onto a roof, landing 4 sec later at height of 20m above the release level. The balls path just before landing is angled at 60 degree with the roof. a) find the horizontal distance d it travels. b) what is the magnitude of the balls initial velocity? c) what...

*January 12, 2016*

**Math**

describe a situation where a trend line would be useful

*January 12, 2016*

**math help please**

48/3 = 16 2/3= 16x2= 32 she sold 32 muffins

*January 12, 2016*

**Math**

log2(-3sinx)=2log2(cosx)+1 solve for x

*January 12, 2016*

**Chemistry**

Compound X contains only carbon, hydrogen, nitrogen, and chlorine. When 1.00 g of X is dissolved in water and allowed to react with excess silver nitrate, AgNO3, all the chlorine in X reacts and 1.95 g of solid AgCl is formed. When 1.00 g of X undergoes complete combustion, 0....

*January 6, 2016*

**math**

Roma spent 30% of the money she bought to the mall..If she spent 450.00 only,how much did she have with her when she went to the mall?

*January 6, 2016*

**math**

after spending 80% of her money Lei has P100.00 left. How much was her money before

*January 5, 2016*

**science**

Suppose the height of the net is 0.800 m , and the court's border is 11.2 m from the bottom of the net. Use g =10 m/s2 and find the maximum speed of the horizontally moving ball clearing the net..

*December 16, 2015*

**Math**

A contractor buys 14 yd of nylon carpet and 20 yd of wool carpet for $1738. A second purchase, at the same prices, includes 16 yd of nylon carpet and 25 yd of wool carpet for $2102. Find the cost per yard of the wool carpet.

*December 13, 2015*

**pobability**

Suppose that 16% of the CD's that are distributed are defective. If you choose 5 CD's randomly, what is the probability that at least 1 of them is defective?

*December 11, 2015*

**Math **

How do integrate this with respect to x? integral of ((x^y)/y!)e^(-2x) from 0 to infinity The e is an exponential. The answer is supposed to be (1/2)^(y+1) but I don't know the steps to getting it.

*December 10, 2015*

**math**

Measuring number of surface of the rectangle is 128.If we reduce the length of 4 times, then the number is 96cm2.What is the perimeter?

*December 10, 2015*

**geometry**

c//d,<7 and< are= corresponding angles

*December 9, 2015*

**Chemistry**

Nevermind - I think I see what I did wrong. I was using 25 mL as my volume for hydrogen peroxide, when I should have been using 20 mL since that was the volume being added. Though I don't necessarily understand how that's the volume that needs to be used.

*December 9, 2015*