Friday
October 24, 2014

Posts by Lisa


Total # Posts: 3,017

Physics
A billiard ball traveling at 6.25 m/s collides with a second stationary ball of equal size and shape causing the second ball to move at an angle of 25º with respect to the horizontal at a speed of 3.0 m/s.Both balls have a mass of .210kg. What is the impulse of both balls...
January 4, 2014

MATH
Owen has 20% more marbles than Danny. Danny has 40% less marbles than Connie. Owen has 21 marbles less than Connie. How many marbles does Danny have?
December 30, 2013

math
A tank contains 4L of water at first. Tap A is turned on and water from tap A flows into the container at the rate of 8L per minute. After 3 minutes, Tap B is turned on. Both taps are turned off together after another 5 minutes. If the total amount of water in the container is...
December 30, 2013

Math
Recall that the equation for the horizontal distance h in feet of a projectile with initial velocity v0 and initial angle theta is given by h=v0^2/16 sin theta cos theta . a. Assume the initial velocity is 60 ft/second. What initial angle will you need to ensure that the ...
December 6, 2013

Ashford
According to to scholars what is one way the advent of talking pictures changed the behavior of movie audiences
December 1, 2013

Astride university
What is the correct technical name for the music that plays in the background of a scene while the action takes place
December 1, 2013

finance
Find the amount of periodic payment necessary for the deposit to a sinking fund: A=50,000 n=semiannually , r=13%, t=15 yrs.
November 23, 2013

Statistics
Many dairy cows now receive injections of BST, a hormone intended to spur greater milk production. A group of 53 Jersey cows increased average milk production from 43 to 52 pounds per day, with a standard deviation of 4.8 lbs. Is this evidence that the hormone maybe effective ...
November 21, 2013

Statistics
If the cases selected for one sample have no influence upon the cases selected for a second sample, then the samples are said to be: A) independent B) inconsistent C) dependent D) consistent A
November 21, 2013

math
I got it wrong. I don't understand why.
November 21, 2013

math
I have a question I have been working on since yesterday and I am not making this up. I couldn't get the right answer. If sin theta = -2/3, which of the following are possible? A: cos theta= -the sqr rt of 5/3 and tan theta =2/3. B: sec theta = 3/the sqr rt of 5 and tan ...
November 21, 2013

Intro to trigonometry
sorry I forgot to put my name.
November 20, 2013

Intro to trigonometry
If sin(theta) < 0 and tan(theta) > 0 then: in degrees. Ok I need help with this I couldn't understand the lesson and want to know how to do problems like this. Please help me by showing me step by step! Thank u in advance.
November 20, 2013

chemistry
if the %m/m of a solution of NaCl is 22%, how may grams of NaCl are present in 250g of solution?
November 19, 2013

Pre-Calc
A wrecking ball attached to a crane swings back and forth. The distance that the ball moves to the left and right of its resting position with respect to time is represented by the following graph.
November 15, 2013

Social Studies
WWI: Why would the Canadiens( Francophone) and the Maritime provinces be less interested in going to war in Europe than those Canadians of British heritage?
November 14, 2013

math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 µm. Find this earthquake's magnitude.
November 11, 2013

algebra
The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e^−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.17 psi, what is its altitude?
November 11, 2013

Stat
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 11, 2013

algebra
Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 * 10^5 watts cm^2 what is the db?
November 11, 2013

math
solve: 2 ln e= ln sqrt of 7/x-2 ln e what would be x?
November 11, 2013

algebra 2 Please help
8x/6y divide by 2x/3y
November 10, 2013

math
2 ln e = ln sq rt. 7/x-2 ln e
November 10, 2013

math
is the answer 933?
November 10, 2013

math
An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula: N = 1,500 + 300 ln a (a ≥ 1) How many units are sold after spending $1,000?
November 10, 2013

math
Bob has 22 stamps. this is 6 times as many as Joe has. Bob makes a model to compare the number of stamps they have
November 9, 2013

algebra 2 help please would appreciate
4/x+5/y divide 3/x+7/y simplify complex fraction thank you show work
November 9, 2013

algebra 2 help please would appreciate
3+(2x/x+4) divide x/x+4 please simplify the complex fraction thank you show work
November 9, 2013

Algebra 2 help please would appreciate
8x/6y divide 2x/3y simply fraction show work thank you
November 9, 2013

ALGEBRA 2 help please would appreciate
find the exact value for cosine and sine of 2,1oo degree thanks
November 8, 2013

math
please help to solve tie exponential equation for x: 5^x=8
November 7, 2013

Math 5th grade
I still don't understand which one have exactly 3 factors in common with the number 12. Can you please explain?
November 4, 2013

Math 5th grade
Can you help me solve the problem? Use number bank to solve. Number Bank is 42, 14, 16, 24, 84. 1. I have exactly 3 factors in common with the number 12. 2. I have exactly 2 factors in common with the number 12.
November 4, 2013

Statistics Problems
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 3, 2013

Medical Billing and Coding
The patient was admitted with increasing shortness of breath, weakness, and nonproductive cough. Treatment included oxygen therapy. Final diagnoses listed as acute respiratory insufficiency and acute exacerbation of chronic obstructive pulmonary disease (COPD). Which of the ...
November 1, 2013

Medical Billing and Coding
This is a 71-year-old female admitted with a complaint of right-sided weakness. She denies any fever, shortness of breath, cough, headaches, or chest pain. Patient has NIDDM, controlled by diet. Patient currently smokes. Mild right-sided paralysis was found on physical ...
November 1, 2013

Medical Billing and Coding
This 65-year-old chronic cigarette smoker for the past 40 years was admitted to the hospital with acute exacerbation of her chronic obstructive pulmonary disease. She has a hsitory of anxiety syndrome due to hypothyroidism, and is maintained on medications for both the anxiety...
November 1, 2013

Medical Billing and Coding
The patient was brought to the ER and then admitted because of acute alcohol inebriation. The diagnosis is acute and chronic alcoholism, continuous. What codes are assigned? ICD-9-CM Diagnosis Code(s) with POA Indicator:________________________ ICD-10-CM Code(s):________________
November 1, 2013

ALGEBRA 2 help please would appreciate
for the equation -4x-8y^2=0,give the focus and directrix.then sketch the graph, showing both the focus and the directrix. please show all the step thank you.
October 30, 2013

alGEBRA 2 help please would appreciate
for the equation -4x-8y^2=0,give the focus and directrix.then sketch the graph, showing both the focus and the directrix. please show all the step thank you.
October 30, 2013

alGEBRA 2 help please would appreciate
graph 36x^2-900=25y^2 show the step please
October 28, 2013

alGEBRA 2 help please would appreciate
find the foci of 9x^2-25y^2=225 I get this far a^2=5 and B^2=3 AND I KNOW I HAVE TO USE THE formula c^2=a^2-b^2 i don't know what to do now if add it i get c^2=34 please help show the step thanks
October 28, 2013

scial studies
In countries that are predominantly Muslim, the
October 28, 2013

Psychology/Ms Sue
Ms Sue, please check my answers? 1. Overall drug use among adolescents has decreased in the U.S since 1976? False 2. Tobacco is the only drug category used more by 8th graders than 12th graders? False 3. The high rate of adolescent crime is caused by a few very active ...
October 27, 2013

English
( IS MY ANSWER CORRECT ? ) Read the following Papago song. Identify it's purpose. No talking, no talking. The snow is falling. And the wind seems to be blowing backward. ( 1 point ) A.) to inform B.) to persuade * C.) to analyze D.) to express
October 25, 2013

Early American and Colonial Literature
Matching Match the letter of the author with his or her description. Not all letters will be used. A. William Bradford B. Captain John Smith C. Anne Bradstreet D. Olaudah Equiano E. Thomas Paine F. Thomas Jefferson 1.) " I wrote an account of my voyage across the sea on ...
October 25, 2013

math
How do i write 4*36 in an array and find partial products.
October 23, 2013

juvenile justice
17 letter word that means accepting the criminal label
October 22, 2013

Chemistry
would the calculated molar volume be larger, smaller or unchanged. a. the partial pressure of water was not taken into account
October 20, 2013

Psychology/ Ms Sue
Please check my answers 1. During puberty, boys testosterone production increases up to 5 times the level in childhood? True 2. Babies of teenagers have a higher risk of birth complications? True 3. Most STIs are fatal if not treated properly? False 4. Analytic thinking and ...
October 20, 2013

math
Simplify the expression. 5(x − 1) − 3(x2 + 4x + 5) − 8(x + 7) Classify the answer by number of terms and degree. 1st-degree monomial 1st-degree binomial 1st-degree trinomial 2nd-degree binomial 2nd-degree trinomial
October 19, 2013

math
Simplify the expression. (2x − 1)(x2 + 3x − 3)
October 19, 2013

math
(x + 6y − 5z) − (x − 2y + 4z) Classify the answer by number of terms and degree. 1st-degree monomial 1st-degree binomial 1st-degree trinomial 2nd-degree binomial 2nd-degree trinomial
October 19, 2013

math
You and your friend are saving for college. You have $50 and are added $10 each week to your savings. Your friend has $20 and he is adding $20 each week to his savings. a. what system of equations would be a good model for this situation? Let x be number of weeks and y be the ...
October 18, 2013

Statistics
So, how would I figure out the standard deviation of 61.4?
October 17, 2013

Statistics
What is the mean and standard deviation of 63.7%? What is the mean and standard deviation of 61.4%? Using the 68-95-99.7 rule, describe the sampling distribution of 63.7% Using the 68-95-99.7 rule, describe the sampling distribution of 61.4%? Please help I am so lost...
October 17, 2013

Statistics
What is the mean and standard deviation of 63.7%? What is the mean and standard deviation of 61.4%? Using the 68-95-99.7 rule, describe the sampling distribution of 63.7% Using the 68-95-99.7 rule, describe the sampling distribution of 61.4%? Please help I am so lost...
October 16, 2013

computer
why do you think this is?
October 16, 2013

computer
what is the least difficult microsoft office component to learn? what is the most difficult?
October 16, 2013

computers
I learned that the website provided 30 day free trial so I learned step by step how to download it first. I just didn't know what it meant by components I got it now ,but thanks
October 16, 2013

computers
can someone help me anser this question on installing microsoft--- Describe an experience installing the Microsoft Office Suite software. Note: If the software is already preinstalled, take a look at where the software is installed and list the components that are included in ...
October 16, 2013

geometry A please help
given <A compl to <B <C is compl to <B <A=(3x+y) <B=(x+4y+2) <C=(3y-3) find the measure of all 3 angles show all work please I dont know how to do it thank yu
October 15, 2013

Business Finance
A bond that has a $1,000 par value (face value) and a contract or coupon interest rate of 10.6%. The bonds have a current market value of $1,125 and will mature in 10 years. The firm's marginal rate is 34%.
October 14, 2013

math
yes thank you Steve
October 14, 2013

math
Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. {x | x is a multiple of 2} ∪ {x is a multiple of 5}
October 14, 2013

math
{2,3,4,5}--Thanks again Steve
October 14, 2013

math
Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. {1, 2, 3, 4, 5} ∩ {2, 3, 4, 5, 6}
October 14, 2013

math
A = {distinct letters in the word miss} B = {15} C = {m, i, s} D = {2 + 1} E = {three} F = {3} What is the cardinality of each set?
October 14, 2013

math
what are the even counting numbers less than 10
October 14, 2013

statistics
1.c
October 14, 2013

algebra2 please check my answer thanks
find the vertical asymptotes of the following rational function(remember VA is X) y=x+6/(x^2+11x+30 ) my answer is x+6/(x+6)(x+5) cancel alike term i get 1/(x+5 )and V.A:x=-5 is that right thanks
October 13, 2013

algebra2 please check my answer thanks
y=x+6/(x^2+11x+30)
October 13, 2013

algebra2 please check my answer thanks
find the vertical asymptotes of the following rational function(remember VA is X) x+6/(x^2+11x+30 ) my answer is x+6/(x+6)(x+5) cancel alike term i get 1/(x+5 )and V.A:x=-5 is that right thanks
October 13, 2013

Psychology/ Ms Sue
Are my answers correct Ms Sue? 1. One of the characteristic features of school-age children is that they are more likely than younger children to try to conform to peer standards in such matters as clothing and language? True 2. School age children have a more elaborate ...
October 12, 2013

algebra2 please check my answer thanks
find the asymptotes for the following inverse function(VA is X and HA isY) y=7/(x) -4 i get VA: x=0 ,and HA :-4
October 11, 2013

math
Even counting numbers less than 18
October 10, 2013

math
Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. (Enter your answers as a comma-separated list. Enter EMPTY for the empty set.) {x | x is a multiple of 2} ∪ {x is a multiple of 7}
October 10, 2013

math
so if there is a line above set a as a complement a , then would the anwser be {11,12,13}?
October 10, 2013

math
Let U = {7, 8, 9, 10, 11, 12, 13}, A = {7, 8, 9, 10}, B = {7, 8, 11, 12}, and C = {9, 11, 13}. List all the members of the given set. - A ∪ (B ∩ C)
October 10, 2013

math-venn diagram
In a survey of a TriDelt chapter with 50 members, 18 were taking mathematics, 37 were taking English, and 7 were taking both. How many were not taking either of these subjects?
October 10, 2013

math
or does the braces union each other so it would be {2,4,6,7,8,10}?
October 9, 2013

Physics
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come to rest in the tumor, depositing their kinetic energy and breaking apart the tumor’s DNA, thus killing its cells. For one patient, it is desired that 0.10 J of proton energy be ...
October 6, 2013

Statistics
How do I find the deviation of each x-value from the expected value of 0.97? The chart looks like this... x P(x) x-u 0 0.24 ? 1 0.55 ? 2 0.21 ?
October 6, 2013

Psychology
Please check my answers... 1. Asthma is associated with environmental conditions. True 2. Only one-half of U.S. children with asthma follow their doctor's advice about medication. False 3. The percentage of overweight children has increased only marginally in the past 20 ...
October 6, 2013

Alegbra
A baseball team has home games on Thursday and Saturday. The two games together earn $4571.50 for team. Thursdays games generates $68.50 less than Saturday's game. How many was taken in each games? How much did Thursday's game generate?
October 6, 2013

Alegbra
In actor inveseted in some money at 8% and 27,000.00 more than 3 times the amount of 12%, The annual interest is $56480. How much did he invest at each amount? Use the six-step He invested $ _ at 8% and $_ at 12%
October 6, 2013

Alegbra
A mother wants to invest $ 12,000.00 for her sons education. She invests a portion of the money in a bank certificate of deposit (CD Account) which earns 4% and the remain saving bond that earns 7%. If the total interest earned after a year is 720.00, How much invested in the ...
October 6, 2013

Alegbra
The blood alcohol concentration (BAC) of a person who has been drinking is given by the following expression. Number of ounce % alcohol x 0.075 divide body weight in pounds minus hour of drinking x 0.015 In 4 hours a 220lb person has drunk 5 12 ounce beer (60z) each have 5.5% ...
October 6, 2013

Alegbra
(vx0.5403-5450)divide by 1000x34.04 use the expression calculate the property tax paid with the home value of $170,000
October 6, 2013

Math
A yard measures a x b feet the swingset space is a x c feet how much lawn is left after swing set
October 1, 2013

aLGEBRA 2 help please would appreciate
X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you
October 1, 2013

Statistics
In an Intro Stats class, 57% of students eat breakfast in the morning and 80% of students floss their teeth. Forty-six percent of students eat breakfast and also floss their teeth. What is the probability that a student from this class flosses his/her teeth given they eat ...
October 1, 2013

Chemistry- moles
How do I determine the number of hydrogen atoms in .0885 mol Tetracarbon decahydrogen?
October 1, 2013

aLGEBRA 2 help please would appreciate
X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you
October 1, 2013

ALGEBRA 2 help please would appreciate
x x _____ - _____ = x^2+9 ________ x+3 x-3 X^2-9 solve for x. and check answer thank you show work please
October 1, 2013

alGEBRA 2 help please would appreciate
x over (x+3) -x over(x-3)=x^2+9 over X^2-9 solve for x and check answer
October 1, 2013

aLGEBRA 2 help please would appreciate
x/x+3 -x/x+3=x^2+9/x^2-9 solve for x and check your answers
October 1, 2013

aLGEBRA 2 help please would appreciate
x+x/4=25/6 find x please show all the step thank you
October 1, 2013

math
The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes. i got C= 0.75 + 0.25t am i correct? pls help if im not :( and show me how u got the answer thanks in advance
October 1, 2013

Chemistry
* at 790 torr not 70
October 1, 2013

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