Monday
September 15, 2014

Posts by Lisa


Total # Posts: 2,992

physics
A horizontal force of magnitude F = 116 N is used to push a box of mass m = 9 kg from rest a distance d = 13 m? 1)How much work is done by the force on the box? WF = 2) How much work is done on the box by the gravitational force during this same displacement? Wg = 3) How much ...
February 28, 2012

Web Scripting
I'm using actionscript. when you press the mouse, you can draw (using a rectangle) and when you click the mouse it changes colors. What I need to do is have buttons so that a user can click on the button to choose the color they want. How can I do this?
February 27, 2012

COLLEGE CALCULUS.
i don't understand this problem Let F(x)=f(x^4) and G(x)=(f(x))^4. You also know that a^3=2, f'(a)=13, f'(a^4)=15. Find F'(a) and G'(a).
February 27, 2012

Chemisty
.588 g Na3Ag(S2O3)2
February 26, 2012

math
Hiroshi jogs less than 4 miles each day. After n days,he has jogged 16 miles. Which inequality can be used to find the number of days it might have taken Hiroshi to jog 16 miles.
February 26, 2012

Math
70 X __ =____ 100 450 So first we cross multiply 70*450 which is 31,500. Then we divide 31,500 by 100 and we get $315 Now im not really sure if i got the write answer because im not sure if we have to ue proportion work.
February 24, 2012

Easy 4th Grade Math
picture frame laptop desk Book t.v pillow door
February 23, 2012

Math help needed
176 lbs is the same as 79.83 kg. The total amount of drug that this soul needs would be (50 mg / kg / day) * (79.83 kg) * (10 days) = 39,915 mg. With each tablet having 250 mg of drug, the number of tablets the party would need would be 39,915 mg / 250 mg = 42.66 tablets, or ...
February 23, 2012

science
speed and direction
February 23, 2012

science
false
February 23, 2012

Computer Programming (XML)
Using the employees.xml file below, create a DTD file “employee.dtd” based on “employees.xml”. Create a schema files “employee.xsd” based on “employees...
February 23, 2012

math
Factor completely: 36t^2 + 49 - 84t
February 22, 2012

Math
what is the cube root of -1/64
February 22, 2012

Math
One-third of a number, decreased by thirty-six, is at most twenty-two. Find the number. Please help me
February 22, 2012

Math
Need answer ASAP
February 22, 2012

Computers (XML)
employees.xml <?xml version="1.0" encoding="UTF-8"?> <employees> <employee> <first_name>Linda </first_name> <middle_name>P.</middle_name> <last_name>Jone</last_name> <home_phone>386-333-2321</...
February 21, 2012

programming
In order to share an XML file among different systems and programs, this XML file need to checked well, what are the two things to be done? /////////////////////////////////employees.xml//////////////////////////////////////////// <?xml version="1.0" encoding=&...
February 21, 2012

programming
In order to share an XML file among different systems and programs, this XML file need to checked well, what are the two things to be done? /////////////////////////////////employees.xml//////////////////////////////////////////// <?xml version="1.0" encoding=&...
February 21, 2012

Implicit Differentiation
Sorry. I meant the denominator from the quotient rule was never multiplied to the right or so. I don't see it. Where did that portion go?
February 18, 2012

Implicit Differentiation
I did this exactly with this question and i got the wrong answer. Use implicit differentiation to find the slope of the tangent line to the curve y/(x+5y)=x^3+5 at the point (x=1, y=6/–29). But I noticed after "we can continue..." the denominator was moved to ...
February 18, 2012

Physics
Suppose you wish to whirl a pail full of water in a vertical circle without spilling any of its contents. If your arm is 0.93 m long (shoulder to fist) and the distance from the handle to the surface of the water is 15.0 cm, what minimum speed is required?
February 15, 2012

Pre- Algebra
Add 5 to both side 7n=10n+18 Then subtract 10n -3n=18 Finally divide -3 on both sides n=-6
February 15, 2012

chemistry
How do you make a 3 m solution of kbr? How many moles of kbr are in 1 liter of a .03 m solution?
February 15, 2012

Math
Last Saturday Michaela rented 4 movies from the video store. This Saturday she rented 2 movies. Let x represent the cost of renting each movie. Write and simplify an expression for how much more Michaela spent last week renting movies. Please help me work this out thanks
February 15, 2012

Math
5n/8-1/2=3/4 Please help me solve this problem and show me how you did it thanks.
February 13, 2012

science
From the 1970s to the present, a shift in the evolution of public policy moved toward a New Federalism. How did this effect public policy? Was this positive or negative? Why?
February 13, 2012

Chemistry
How much heat is required to raise the temperature of a 65-g sample of water from 32 degrees celsius to 65 degrees celsius
February 11, 2012

Algebra
The officejet printer can copy sues dissertation in 16 minutes. The laser printer can copy the same document in 22 minutes. If the two machines work together, how long would they take to copy the dissertation?
February 11, 2012

Algebra
The officejet printer can copy sues dissertation in 16 minutes. The laser printer can copy the same document in 22 minutes. If the two machines work together, how long would they take to copy the dissertation?
February 11, 2012

Math
y/2-5y/6+1/3=1/2 Please help me solve this problem.
February 11, 2012

Math
Combine like terms. Please help me figure this out. 3p square6 -7q+14p square6
February 9, 2012

algebra
Suppose that you can spend $72 for compact discs and videos. Discs cost $18 and videos cost $9 each. write a system of inequalities that shows the various number of discs and videos that you can buy.
February 8, 2012

chemistry
a 7.500-mg sample of chromium-55 is analyzed after 14.0 min and found to contain 0.469 mg of chromium-55. what is the half-life of chromium-55
February 8, 2012

Geometry (Logic)
Which argument is not valid? 1.) Given: a→b a Conclusion: b 2.) Given: a˅b ~b Conclusion: ~a 3.) Given: a→b ~b Conclusion: ~a 4.) Given: a→b b→~c Conclusion: a→~c
February 7, 2012

algebra
Assume you work at a company where you are paid hourly. You are paid $8.60 per hour for regular time (less than or equal to forty hours) and time and a half for overtime hours up to fifty hours in one week. If you are asked to work fifty or more hours in one week you are paid ...
February 7, 2012

Chemistry
What is the density of a gasoline sample that has a volume of 13.3 mL abd a mass of 8.86 grams?
February 6, 2012

Chemistry
What is the volume of 4.00 grams of air if the density of air at the time of the measurement is 1.19 g/l?
February 6, 2012

Statistics-Matrix of Transition Probabilities
Given the following matrix of transition probabilities, write three equations that, when solved, will give the equilibrium state values. P = large bracket with a b on top and c d directly under that, closed large bracket. Thanks.
February 6, 2012

math
9x-8y=-2
February 5, 2012

Algebra
11. The drama club is selling tickets to its play. An adult ticket costs $15 and a student ticket costs $11. The auditorium will seat 300 ticket-holders. The drama club wants to collect at least $3630 from ticket sales. a) Write and graph a system of four inequalities that ...
February 4, 2012

physics
If you drop object,acceleration to groud is 10m/s2, if you throw it would it be greater than 10m/s2? (ignore air resistance) Why or why not?
February 4, 2012

Statistical Quality Control /UCL's & LCL's
THANK YOU, MathGuru, for your help!
February 4, 2012

Statistical Quality Control /UCL's & LCL's
PLEASE HELP me solve the following problem: A computer diskette manufacturer is concerned that some diskettes have bad sectors that would cause a diskette to hold less information that it was intended to hold. In the past, only 5% of these diskettes have had bad sectors. If ...
February 4, 2012

Math
A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marble are selected at random, one at a time, and are not replaced. Find the probability. P(blue and red) Please help me
February 2, 2012

Physics
but i don't have m...
February 2, 2012

Physics
A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
February 2, 2012

alg2/trig
starting salary for a job is $30,000 with a guaranteed raise of $5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. please somone help!
February 1, 2012

Chemistry
A 5 gram sample of a hydrate of BaCL2 was heated, and only 4.3g of the anhydrous salt remained. What percentage of water was in the hydrate?
February 1, 2012

Quantitative Analysis Simulation Modeling
Define operational gaming and give an example.
February 1, 2012

math
Total purchase is: $100.00 plus $15.00, plus $15.00 or $130.00. $130.00 minus the $50.00 (gift card) leaves the customer with a balance of $80.00 to pay before taxes.
February 1, 2012

math
$22.00 - simply divide 66 by 3 (or 1/3)
January 31, 2012

trig
starting salary for a job is 30,000 with a guaranteed raise of $5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. how much money would you earn in the fifth year?
January 31, 2012

math
6 Student tickets X $8.00 = $48.00 $78.00 minus the $48.00 = $30.00 $30.00 divided by $10.00 Adult Cost = 3 adult tickets.
January 31, 2012

math
a car traveling on a straight road at 20 meters per second accelerates to 26 meters per second in 12 seconds. what is the total distance traveled by the car? please help!
January 31, 2012

chemistry
A piper delivers 10.04, 10.02, 10.08, and 10.06 mL in consecutive trails. Find the mean volume and the average deviation from the mean...please help some responded but didn't answer the question.
January 31, 2012

chemistry
Can someone answer please Determine the boiling point of water at 698.5 mm Hg?
January 31, 2012

chemistry
Determine the boiling point of water at 698.5 mm Hg.
January 31, 2012

physics
A plane leaves Seattle, flies 77.0 mi at 22.0 degrees north of east, and then changes direction to 50.0 degrees south of east. After flying at 119 mi in this new direction, the pilot must make an emergency landing on a field. The Seattle Airport facility dispatches a rescue ...
January 30, 2012

math
mallory emailed a funny cartoon to Ann. she told ann to send it to five friends with instructions for each of them to send it to five other friends. after four cycles of emailing,how many cartoons will have been sent? the answer is 156 but i dont know how to get thy answer, ...
January 29, 2012

American Government POL 201
Locke" use of the term "property"
January 29, 2012

Biology
can you explain this in words?
January 29, 2012

Biology
What is the function of water in cellular respiration and photosynthesis? Detailed answer please
January 29, 2012

Biology
true
January 29, 2012

Physics
The
January 26, 2012

alg2/trig
what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.
January 23, 2012

trig
How do you decide if csc=74 is greater than or less than cos=74 without using a calculator?
January 23, 2012

chemistry
A tank contains a mixture of 3.0 mol of nitrogen 2.0 mol of oxygen and 1 mol of carbon dioxide at 25 degrees and a total pressure of 10 ATM calculate the partial pressure in torr of each gas?
January 19, 2012

Electric
if you measure voltage with a multimeter are the leads of the circuit connected in a series or parallel its series right
January 19, 2012

Electric
measure resistance with a multimeter in a circuit is the power going to be off or on i think ON
January 19, 2012

algebra
use this 1/2(b1 + b2)
January 19, 2012

electricity
if you measure voltage with a multimeter are the leads of the circuit connected in a series or parallel its series right
January 19, 2012

electricity
measure resistance with a multimeter in a circuit is the power going to be off or on i think ON
January 19, 2012

electricity
1.2 volts RIGHT
January 19, 2012

electricity
how many volts does a nickel cadmium produce? VOLTAGE FOR ONE CELL
January 19, 2012

History
Of the social contract
January 18, 2012

History
Pelase help me by finding some examples out of this contract. Having undertaken, for the glory of God, and the advancement of the Christian faith and Houour of our King and Country, a Voyage to plant the First Colony in the Northern parts of Virginia, do by these presents ...
January 18, 2012

ELA
"It is only with the heart that one can see rightly" and my interpretation of this quote is that If you truly believe in yourself, you can make the right decisions. I need help to relate this quote to ROmeo and Juliet with an appropriate literary element.
January 16, 2012

math
Find the exact circumference of a circle with diameter equal to 8 ft. I know the answer is 25 ft but the answers I have to choose from are 8, 16 or 64
January 15, 2012

math
Find the exact circumference of a circle with diameter equal to 8 ft.
January 15, 2012

math
If you put one dollar a day in the bank and earn 20 percent interest per month, how much would you have in 100 years
January 12, 2012

english
38. Which of the following sentences contains a helping verb? (1 point) Eduardo looked in the basement, but the puppy wasn’t there. Sakkom hung wind chimes because she loves the sound. Roger has never performed a solo in his life. The leader of the troop took the scouts ...
January 11, 2012

Biology - Genetics
Please help me!!!! I need help with this practice test question. In Guinea pigs, the brown coat (B) is a dominant over the cream-coloured coat (b), and straight hair (H) is dominant over curly hair (h). Using a Punnett square, complete the cross between a heterozygous brown, ...
January 10, 2012

Math
Identify the outlier in the data set, and determine how the outlier affects the mean, median, mode and range of the data set. 7,7,4,9,6,26,4,5,8,4 Please help me
January 10, 2012

basic electricty
Two Ways Of Decreasing The Current In A Circuit? IS it this pentiometer and ampostat or this Yep, lower the voltage or increase the resistance.
January 10, 2012

BASIC ELEC
NAME THE 5 REQUREMENTS NECESSARY TO HAVE A SAFETY OPERATING ELECTRICAL CIRCUIT 1. CONDUCTOR 2. RESISTOR 3. SWITICH 4. CIRCUIT BREAKER IS THAT CORRECT? NAME 4 CONDUCTORS OF ELECTRICITY 1. COOPER 2. ALUMINIUM 3. BRASS 4. IRON IS THAT CORRECT ? WHAT ARE THE 4 FACTORS AFFECTING ...
January 10, 2012

statistics
could someone please help me ASAP?
January 10, 2012

statistics
I'm stuck on a question in MM207... Assume you want to estimate with the proportion of students who commute less than 5 miles to work within 2%, what sample size would you need?
January 10, 2012

ALGEBRA (SQUARE ROOT HELP)
am confused how would u do this 3√(3)
January 9, 2012

ENGLISH(romeo & Juliet)
What is the plan the nurse brings back from Romeo? is it this ? The nurse determines to get a ladder, which will allow Romeo to climb into Juliet’s room that night—because they will be married then and will do what married people do.
January 9, 2012

6th grade math
And you need to do the expirement to answer these questions
January 9, 2012

6th grade math
Alicia the fraction and mixed number i 1 and 5/14
January 9, 2012

chemistry
1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.
January 8, 2012

chemisstry
1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.
January 8, 2012

ENGLISH
is that right ???????????
January 5, 2012

ENGLISH
I dont get this from Act 2 Scene 3 What are your feelings about Friar Lawrence's involvement? Do you think he is right or wrong? Why? Use two quotes to support your answers. ITS FROM ROMEO AND JULIET
January 5, 2012

MATH
the square of a number is equal to the sum of 21 and 4 times the number. find the number X=-3 X=7 RIGHT?
January 4, 2012

pre Alg
3g - 9 = 6 +9 +9 3g=12 divide by 3 you get g = 4
January 4, 2012

MATH
so its x=7 x= -3
January 4, 2012

MATH
ok thanks
January 4, 2012

MATH
the square of a number is equal to the sum of 21 and 4 times the number. find the number WHATS THE EQUATION (AM CONFUSED ?)
January 4, 2012

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