Friday

April 18, 2014

April 18, 2014

Total # Posts: 103

**Chemistry pH**

A 0.60 M solution of a weak acid, HA, has a pH of 3.72. What is the percentage ionization of the acid? What is the value of Ka for the acid?

**Statistics**

The p-value is the probability of the observed statistic given the null hypothesis is true. A) True B) False False?

**Statistics**

Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey (randomly generated phone numbers were used) of 1...

**Statistics**

Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey of 1026 adults by IBR Polls found that 65.9% of a...

**Statistics Help Please**

A bank is testing a new method for getting delinquent customers to pay their past-due credit card bills. The standard way was to send a letter (costing about $0.45) asking the customer to pay. That worked 30% of the time. The bank wants to test a new method that involves sendi...

**Statistics **

The bank sets up an experiment to test the effectiveness of the DVD. The mail it out to a random sample of delinquent customers and keep track of how many actually do contact the bank to arrange payments. The bank's statistician calculates a p-value (probability-value) of ...

**Statistics**

A bank is testing a new method for getting delinquent customers to pay their past-due credit card bills. The standard way was to send a letter (costing about $0.45) asking the customer to pay. That worked 30% of the time. The bank wants to test a new method that involves sendi...

**Statistics**

A bank is testing a new method for getting delinquent customers to pay their past-due credit card bills. The standard way was to send a letter (costing about $0.45) asking the customer to pay. That worked 30% of the time. The bank wants to test a new method that involves sendi...

**Statistics**

A new manager, hired at a large warehouse, was told to reduce the 26% employee sick leave. The manager introduced a new incentive program for the company's employees with perfect attendance. The manager decides to test the new program to see if it's better and plans to...

**Statistics**

Which of the following criteria must be met to do a one-proportion z- test? A. The data values in the sample must be dependent. B. The parent population must be normally distributed. C. The data must come from a random sample. D. The sample size must be more than 10% of the po...

**math**

Perform each operation, convert to a fraction, & then convert your answer back to a mix number. -4(7/8)x 3(2/3) I did 8*-4+7/8 & got -25/8 then 3*3+2/3 & got 11/3 then i multiplied -25/8* 11/3 & got -275/34 but it's not the right answer, the answer is -17(7/8) not sure wha...

**math**

deductive or inductive reasoning? check my answers? If you square a positive number, you will get a positive number. The number 3 is positive. Therefore, 3^2 is a positive number. I say its inductive. The best player on our team this year attended a basketball clinic to improv...

**math**

Since kim ran 20 miles, sam ran HALF as much as Kim. Half = 20 divided by 2. That equals 10!!!

**biology**

In a laboratory population of diploid, sexually reproducing organisms a certain trait is determined by a single autosomal gene and is expressed as two phenotypes. A new population was created by crossing 102 pure–breeding (homozygous) dominant individuals with 98 pure bre...

**Math-Algebra**

^4√(d-3e)^2 (fourth root of (d-3e)^2)

**Math - Algebra**

What is the tenth root of 16u^2v^4wx^5? Note that the exponent of v is 4w.

**Calculus**

If 2x-2¡Üf(x)¡Üx^2-2x+2, determine limx-->2f(x)= (Use squeeze theorem)

**statistics**

On a national standardized test, with normally distributed results, the middle 68% of students scored between 40 points and 70 points, and the mean score was 55 points. Based on this information, which of the following represents a score in the 97.5th percentile?

**Math**

Fence needs to be built for 6 children with 75 sq feet for each child. What would length and width be for fence in feet?

**Statistics**

a. .2451 b. .8051 c. .3897

**Statistics**

During September, the average temperature of Laurel Lake is 64.2º and the standard deviation is 3.2º. Assume the variable is normally distributed. For a randomly selected day, find the probability that the temperature will be a. Above 62º b. Below 67º c. Be...

**chemistry**

Calculate the temperature (K) at which the equation as written is at equilibrium. Express your answer to three significant figures. CaO(s) + CO2(g) → CaCO3(s) ∆G°f (kJ/mol) CaO(s)-604.0 CO2(g)-394.4 CaCO3(s)-1128.8 ∆H°f (kJ/mol) CaO(s)-635.1 CO2(g)-39...

**Algebra**

The edge of one cube is 5cm shorter than the edge of a second cube. The volumes of the two cubes differ by 875cm^3. Find the edge of the smaller cube.

**Math 4th grade**

How do you find the properties of addition?

**programming**

Daily Life Magazine wants an analysis of the demographic characteristics of its readers. The Marketing Department has collected reader survey records containing the age, gender, marital status, and annual income of readers. Design an application that accepts reader data and pr...

**Math**

Write a number that has a hundreds digit less than 7, a tens digit less than 5, a tenths digit one more than its tens digit, a thousandths digit twice the tens digit, and other digits of your choice.

**statistics**

how do i calculate the SAT score that defines the bottom 3% of students with a mean of 500 and standard deviation of 100

**algebra**

A boat is worth $7,000 when it is 5 years old and $2,000 when it is 10 years old. What is the slope intercept equation?

**PSYCHOLOGY**

Thanks again Ms. Sue. I found some great information. Just got to use the right search terms.

**PSYCHOLOGY**

Thanks Ms. Sue. Is there a website that guides you participant selection?

**PSYCHOLOGY**

Will someone please point me in the right direction. How would you select survey takers? i have completed the survey for organizational motivation. I have also decided on the population of those who will be surveyed. Thank You-

**PSYCHOLOGY**

Will someone please point me in the right direction. How would you select survey takers? i have completed the survey for organizational motivation. I have also decided on the population of those who will be surveyed. Thank You-

**Strayer**

I need Face Books financial statements, do you know what links I can go to?

**Calculus**

Consider the curve defined by y + cosy = x +1 for 0 =< y =< 2pi.... a. Find dy/dx in terms of y. *I got 1/(y-siny) but I feel like that's wrong. b. Write an equation for each vertical tangent to the curve. c. find d^2y/dx^2 in terms of y. d. Sketch a graph of the cur...

**MATH**

If y= ab, then b= a+b A line goes under ab. Please help, I have not taken math in many years.

**Criminal Justice**

Will someone please help me with this question? What are the goals of truth-in-sentencing laws?

**Environmental Science**

Will someone please help me understand this? Identify a keystone species that has been removed or reduced in number in its habitat. How has the removal of this species effected the ecosystem to which it belonged?

**Criminal Justice**

Thanks Ms.Sue, this information helped me out.

**Criminal Justice**

How does a prosecutor determine which cases to pursue?

**Criminal Justice**

Please point me in the right direction. What would happen if the role of the police were lessened as it applies to the theory and practice of community policing?

**Criminal Justice**

Please point me in the right direction. What would happen if the role of the police were lessened as it applies to the theory and practice of community policing?

**SCI**

Please help me in understanding this. Differentiate between the First Law of Thermodynamics and the Second Law of Thermodynamics.

**math**

How would you use the substitution method to answer 1/3x-2=1 x-6y=3, and what would be the solution?

**BUS 323**

Will someone please provide some references to this question? Thanks Which of the six virtues (and their related character strengths) are most relevant in discussing business ethics?

**criminal justuce0**

Recommendations for how to modify the sentencing process to reduce recidivism rates. Please help me understand this.

**Grade 10-Math**

Horizontal line through(5,0)

**business**

Can someone help me with this question by providing resources. What are the major implications for using positive psychology to study business ethics? Give a specific example .

**SOCIOLOGY **

Thank You Ms.Sue.

**SOCIOLOGY **

Will someone suggest websites for the below? Developments in parenting by lesbians and gay men.

**Psy101**

Do anybody know websites that can help me with this assignment? Choose one of the anxiety or mood disorders. Describe the disorder in detail including what is known or suspected about its causes and progression. Try to put yourself in the position of the person who has this di...

**general chemistry**

Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these chemical reactions useful to healthcare professionals?

**physics**

After driving 20.0 km west, a car turns southwest and proceeds another 50.0 km. What is the displacement (in kilometers) of the car from the point of origin (magnitude only)?

**Physics**

A tennis ball of mass 0.0609 kg is served. It strikes the ground with a velocity of 52.5 m/s (117 mi/h) at an angle of 22.0° below the horizontal. Just after the bounce it is moving at 50.5 m/s at an angle of 17.7° above the horizontal. If the interaction with the grou...

**math**

A spray rig moving at 3 mph delivers 44 gallons per acre when the nozzles on the rig are 20 inches apart. a) Suppose the number of nozzles were increased so that they were only 15 inches apart. Find the new delivery rate of the rig. b) How could this revised delivery rate be a...

**geometry**

A bicycle tire has a diameter of 24 inches. How many miles will the bicycle travel when the tires make 16,000 revolutions?

**Child Care**

growth, maturation, and learning are all used interchangeably with the term of what?

**child day care management,health,safety,and nutrit**

yes thank you

**Chemistry**

which property of a distilled water solution will not be affected by adding 50 mL of CH3OH to 100.mL of the water solution at 25? conductivity mass freezing point boiling point please help

**Chemistry**

which sample of matter is a mixture ? (1)H2O(s) (2)H2O(l) (3)NaCl(l) (4)NaCl(aq)

**chemistry**

a continer holds 0.500 qt of liquid. How many milliliters of lemonade will it hold.

**Chemistry**

i got 112.61 is that right ?

**Chemistry**

what is the gram formula mass of CaSO4*2H20?

**fourth grade math**

Hymns LCD I h Appomattox Iggy D lover you

**Chemistry**

A student named KClO3 potassium chlorine (V) oxide. Explain why the use of the stock system is not correct in this case and write the correct name of the substance.

**phsic**

A small steel ball bearing with a mass of 10 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.19 m. Calculate the speed at which the ball leaves the spring.

**physics**

part c is what I am having trouble with. what equation do I use?

**physics**

A helicopter is rising at 5.1 m/s when a bag of its cargo is dropped. (Assume that the positive direction is upward.) (a) After 2.0 s, what is the bag's velocity? (b) How far has the bag fallen? (c) How far below the helicopter is the bag?

**English**

Hey there, I need a description of the way honey feels in your mouth, i also need words that are sensually appealing, like the way you see honey and the way you taste it and what it feels like and stuff. Thank-you for the help!

**health**

The Papanicolaou test is used to detect A. conization in situ. C. minimal cervical dysplasia. B. protein in the urine. D. colonic polyposis Would this be A. Conization in situ?

**chemistry**

Suggest a test chemical that can be added to a water sample to percipitate the lead(II) ions. show a chemical equation for the formation of the percipitate you have chosen.

**algrebra**

The function W(d)=0.112d approximates the amount in centimeters of water that results from d cm of snow melting. Find the amount of water that results from snow melting from depths of 20cm,38com, and 62cm.

**AIG 4th Grade Math**

Nellie's soccer team is having a great season. The team is being coached by Nellie's mom, who divided the team into five groups: 1/2 the players are forwards, 1/6 are wings, 1/6 are halfbacks, 1/12 are fullbacks, and 2 others are goalies. How many players are on Nellie...

**physics **

an apple weighs about 1N. what is its mass in kilograms ? what is its weight in pounds?

**physics **

If jon has a weight of 645N what is his mass? I have to do this using the GUESS METHOD

**SOCIAL STUDIES**

WHAT ARE PROVISIONS OF THE CONSTITUTION?

**Allied Health**

should corrections be date and time stamped?

**Role of the Media**

can you give me an introductory paragraph and facts?

**English**

What is media?

**Personal Finance Concept**

Bernie and Pam Britten together earn $100,000 a year. They have $40,000 to invest they are considering buying a condo for $100,000 with a required $10,000 down payment. Their friend has recommended the following investments the condo-expected annual increase in market value= 5...

**math**

-(3x-y) +3(2y-3x) -3x + y + 6y + -9x 7y + -12x As Damon said.

**math-algebra 1**

It is actually easier than it looks. h(x) or f(x) (which is more common) is the same thing as y. Therefore, you graph it just like you would: y = x - 4. If you don't know how to graph that, then right another response back and I can explain. Hope I helped you a little! :-)

**Hey Mel! Do you still need help...**

If you do, #1 is g=25 and f=18. That would mean it is consistent and independent, right? :-)

**Math 012**

Ok I think this is how it goes: 6y-8=-6+3y+13 First add 8 to both sides 6y=15+3y Next subtract your 3y from both sides 3y=15 so y must = 5 3(5)= 15 I think this is right

**stats...please help, I don't really understand**

Not exactly sure, but I think the answer would be D as the population of interest is the one being polled, which is 58% of the registered voters.

**Science**

Thanks, I have already read through a lot of these sites. I guess what I really need to understand is why can't oxygen survive at the higher levels? Because it is produced by the blue green algae, does this mean that it just can't travel far enough or does the temperat...

**Science**

Why can't the ozone layer be higher in the atmosphere?

**Literacy**

These letters are supposed to be unscrambled to make 4 words: eeahtkssatetlg

**Math 9**

On the first 6 tests in her social studies course, Jerelyn’s scores were 92 78 86 92 95 and 91. determine the median and the mode of her scores. If Jerelyn took a seventh test and raised the mean of her scores exactly 1 point, what was her score on the seventh test?

**Math**

Got it!!!...it's 7+[9x(3-1)]=25 Thanks for the quick response!

**Math**

Add parentheses so that the equation is correct.... 7+9x3-1=25 Will someone please help me out here. Thanks!!

**math**

Which rates are equivalent? A. 36 us dollars/48 canadian dollars= 54 us dollars/72 canadian dollars B. 18 us dol./24 can. dol.= 45 usdol./48 can. dol. C. 18 us dol/24 can dol.= 54 us dol/60 can dol. D. 48 us dol./64 Can Dol= 72 US dol./128 can dol.

**word unscramble in french**

how do you unsramble this in french "tenipure"

**Math**

I need to find the volume of a prism whose base is a hexagon

**social studies**

what is a smaller community within a community called?

**Math**

Find the amount in an account if $2000 is invested at 6.125%, compounded semi-anually,for 2 years. 2000* (1.030625)^4 = / That is what you get by adding 3.0625% to the principal every 6 months, and compounding 4 times I Am getting 2252.50, is this correct?

**American History**

Does anyone know of a website that gives details on how the government prepared newly freed slaves to survive in society after the american civil war. http://www.google.com/search?q=1864+newly+freed+slaves&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7 The...

**American history**

I am trying to find additional information on the important geographic factors and technologic advances that encouraged America to grow in the 1800s. The main geographic factor was the huge amount of American territory, spanning the continent from the Atlantic to the Pacific. ...

**stoichiometrics**

What is the mass of each and which is greater? 1g H2 + ?N2 and 1g H2 + ?O2 I've balanced them to this point: 3H2 + N2 ===> 2NH3 2H2 + O2 ===> 2H2O Help please, I am stuck on this step and cannot get any further. Thanks, PJ Good! You've done the hard part. For the...

**science**

brap is right

**science**

me to someone help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee