Wednesday

March 4, 2015

March 4, 2015

Total # Posts: 119

**Physics **

Why are household lamps are not connected series?
*February 8, 2015*

**Math**

Okay, thank so much! I have another question: This one says to use the Half-Angle formulas to determine the exact value of sin(pi/12). Here's what I have: π/12 = ( 180° ) / 12 = 15°. = sin ( π/12 ) = sin 15° = sin ( 45° - 30°) = sin 45°&...
*February 2, 2015*

**Math**

Hi! The question I need help with is 6cos^2x-3 and the directions say to use a double-angle formula to write the expression. This is what I have but I don't know if it's right? 6cos^2(x)-3 =3(2cos^2(x)-1) =3cos(2x)
*February 2, 2015*

**Physical Science**

Henry Heavyweight weighs 1200N and stands on a pair of bathroom scales so that one scale reads twice as much as the other. What are the scale reading?
*February 2, 2015*

**Physics- Is my work right?**

A ball moving at +3.0 m/s along a table rolls off a table and lands on the ground 2.0 m away. How high was the table? h = 9.8 × (2/3)² / 2 = 2.2 m
*December 11, 2014*

**Math**

Find the valu eof accros (5/6). Then, round your answer to four decimal places. I know that the answer is 0.5856 but how would I round that? Thanks!
*December 7, 2014*

**Math**

An airplane travels 226 miles in 2 hours. At that rate, how far will the airplane travel in 8 hours?
*November 16, 2014*

**Math: Statistics**

1. A regression analysis includes the effect of Age, which is categorised into five levels. How many dummy variables should be defined for including it in the analysis? 2. A regression analysis includes Sex as an explanatory variable. How many dummy variables are required to ...
*October 28, 2014*

**Math Questions**

1.) 6√24x, for which value of x makes the expression equivalent to 18√24? a.) 3 b.) 9 c.) 12 d.) 18 My answer: C. 2.) 4√72x, for which value of x makes the expression equivalent to 24√72? a.) 6 b.) 7 c.) 36 d.) 72 My answer: A. 3.) 7√32x, for ...
*October 3, 2014*

**Math**

This is really confusing to me. I'm not sure on how to do this or even how to get an answer? Can someone perhaps help me? Thanks! :) f(x)=x^2-25/x-5 if x is less than or equal to -1; 2x-3 if x>-1. f(4)= f(-1)=
*September 19, 2014*

**Math Help**

The one that says "<-1" is suppose to be "if x less than or equal to -1"
*September 19, 2014*

**Math Help**

Evaluate the piecewise function: f(x)= {x^2-25/x-5, if x < -1 --- and 2x-3, if x>-1 We are looking or f(4)= and f(-1)= with that whole equation
*September 19, 2014*

**Permutation and Combination**

If 9 red balloons and 6 blue balloons are to be distributed to 4 children, how many distributions are possible if every child must receive a balloon of each color?
*July 6, 2014*

**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?
*April 17, 2014*

**poetry part 1**

Answer is definitely B. a narrow wind complains all day..
*March 16, 2014*

**Statistics**

The p-value is the probability of the observed statistic given the null hypothesis is true. A) True B) False False?
*November 4, 2013*

**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 ...
*November 4, 2013*

**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 ...
*November 4, 2013*

**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 ...
*November 4, 2013*

**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 ...
*November 2, 2013*

**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 ...
*November 2, 2013*

**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 ...
*October 30, 2013*

**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...
*October 29, 2013*

**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 ...
*October 29, 2013*

**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 ...
*October 13, 2013*

**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 ...
*September 28, 2013*

**math**

Since kim ran 20 miles, sam ran HALF as much as Kim. Half = 20 divided by 2. That equals 10!!!
*August 2, 2013*

**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 ...
*August 1, 2013*

**Math-Algebra**

^4√(d-3e)^2 (fourth root of (d-3e)^2)
*July 15, 2013*

**Math - Algebra**

What is the tenth root of 16u^2v^4wx^5? Note that the exponent of v is 4w.
*July 15, 2013*

**Calculus**

If 2x-2¡Üf(x)¡Üx^2-2x+2, determine limx-->2f(x)= (Use squeeze theorem)
*May 31, 2013*

**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?
*May 28, 2013*

**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?
*March 27, 2013*

**Statistics**

a. .2451 b. .8051 c. .3897
*March 16, 2013*

**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. ...
*March 16, 2013*

**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)-...
*March 11, 2013*

**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.
*January 29, 2013*

**Literature**

The answer is B......
*October 15, 2012*

**Math 4th grade**

How do you find the properties of addition?
*October 9, 2012*

**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 ...
*October 1, 2012*

**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.
*September 30, 2012*

**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
*September 20, 2012*

**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?
*July 13, 2012*

**PSYCHOLOGY**

Thanks again Ms. Sue. I found some great information. Just got to use the right search terms.
*April 18, 2012*

**PSYCHOLOGY**

Thanks Ms. Sue. Is there a website that guides you participant selection?
*April 18, 2012*

**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-
*April 18, 2012*

**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-
*April 18, 2012*

**Strayer**

I need Face Books financial statements, do you know what links I can go to?
*March 6, 2012*

**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 ...
*January 24, 2012*

**MATH**

If y= ab, then b= a+b A line goes under ab. Please help, I have not taken math in many years.
*January 12, 2012*

**Criminal Justice**

Will someone please help me with this question? What are the goals of truth-in-sentencing laws?
*December 17, 2011*

**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?
*December 10, 2011*

**Criminal Justice**

Thanks Ms.Sue, this information helped me out.
*December 1, 2011*

**Criminal Justice**

How does a prosecutor determine which cases to pursue?
*December 1, 2011*

**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?
*November 17, 2011*

**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?
*November 17, 2011*

**SCI**

Please help me in understanding this. Differentiate between the First Law of Thermodynamics and the Second Law of Thermodynamics.
*November 8, 2011*

**math**

How would you use the substitution method to answer 1/3x-2=1 x-6y=3, and what would be the solution?
*November 2, 2011*

**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?
*September 28, 2011*

**criminal justuce0**

Recommendations for how to modify the sentencing process to reduce recidivism rates. Please help me understand this.
*September 24, 2011*

**Grade 10-Math**

Horizontal line through(5,0)
*September 24, 2011*

**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 .
*September 19, 2011*

**SOCIOLOGY **

Thank You Ms.Sue.
*September 12, 2011*

**SOCIOLOGY **

Will someone suggest websites for the below? Developments in parenting by lesbians and gay men.
*September 12, 2011*

**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 ...
*September 7, 2011*

**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)?
*June 14, 2011*

**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 ...
*March 29, 2011*

**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 ...
*March 25, 2011*

**geometry**

A bicycle tire has a diameter of 24 inches. How many miles will the bicycle travel when the tires make 16,000 revolutions?
*March 24, 2011*

**Child Care**

growth, maturation, and learning are all used interchangeably with the term of what?
*March 9, 2011*

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

yes thank you
*February 24, 2011*

**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
*February 23, 2011*

**Chemistry**

which sample of matter is a mixture ? (1)H2O(s) (2)H2O(l) (3)NaCl(l) (4)NaCl(aq)
*February 13, 2011*

**chemistry**

a continer holds 0.500 qt of liquid. How many milliliters of lemonade will it hold.
*January 28, 2011*

**Chemistry**

i got 112.61 is that right ?
*January 2, 2011*

**Chemistry**

what is the gram formula mass of CaSO4*2H20?
*January 2, 2011*

**fourth grade math**

Hymns LCD I h Appomattox Iggy D lover you
*December 14, 2010*

**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.
*October 25, 2010*

**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.
*September 20, 2010*

**physics**

part c is what I am having trouble with. what equation do I use?
*September 13, 2010*

**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?
*September 13, 2010*

**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!
*July 27, 2010*

**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?
*June 30, 2010*

**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.
*May 26, 2010*

**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.
*March 19, 2010*

**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...
*January 19, 2010*

**physics **

an apple weighs about 1N. what is its mass in kilograms ? what is its weight in pounds?
*October 28, 2009*

**physics **

If jon has a weight of 645N what is his mass? I have to do this using the GUESS METHOD
*October 28, 2009*

**SOCIAL STUDIES**

WHAT ARE PROVISIONS OF THE CONSTITUTION?
*September 8, 2009*

**Allied Health**

should corrections be date and time stamped?
*July 27, 2009*

**Role of the Media**

can you give me an introductory paragraph and facts?
*March 22, 2009*

**English**

What is media?
*March 21, 2009*

**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...
*February 21, 2009*

**math**

-(3x-y) +3(2y-3x) -3x + y + 6y + -9x 7y + -12x As Damon said.
*February 16, 2009*

**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! :-)
*February 16, 2009*

**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? :-)
*February 16, 2009*

**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
*January 31, 2009*

**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.
*January 31, 2009*

**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 ...
*January 31, 2009*

**Science**

Why can't the ozone layer be higher in the atmosphere?
*January 31, 2009*