Saturday
December 20, 2014

Posts by penny


Total # Posts: 113

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

Literacy
These letters are supposed to be unscrambled to make 4 words: eeahtkssatetlg
September 26, 2008

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?
September 11, 2008

Math
Got it!!!...it's 7+[9x(3-1)]=25 Thanks for the quick response!
August 20, 2008

Math
Add parentheses so that the equation is correct.... 7+9x3-1=25 Will someone please help me out here. Thanks!!
August 20, 2008

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