Questions Asked on
May 16, 2010

Vectors
A 50 N force is applied to the end of a 30 cm wrench and makes an angle of 30 degrees with the handle of the wrench. What is the Torque on the bolt at the other end of the wrench? What direction does the Torque act? What is the Maximum and Minimum Torques
asked by Ria 
Enthalpy of Formation
N2H4(g) + H2(g)> 2 NH3(g) H1 = –1876kJ 3 H2(g) + N2(g)> 2 NH3(g) H2 = –922 kJ The H.f for the formation of hydrazine: 2 H2(g) + N2(g)> N2H4(g) will be______kj/mol I am very confused here. I thought I would just add H1 and H2 and divide by the
asked by CHem 
Social studies
Countries using Constitutional monarchy in the caribbean
asked by Abeka 
Statistics
The daily sales at a convenience store have a mean of $1350 and a standard deviation of $150. Assuming n/N is less than or equal to .05, that standard deviation of the sampling distribution of the mean sales of a sample of 25 days for this convenience
asked by Felicia 
math
Adam has built a garden shed in the shape described. a square based pyramid with the height of 3.5m on top of a cube with base 4m by 4m and height 2m. calculate the volume of the shed, to the nearest cubic metre. thanks.
asked by Ted 
calculus
Given vectors u= (t, 2t, 3) and v=(2t, 5t, 1). For what values of t a) are u and v parallel? b) are u and v perpendicular?
asked by Ashley 
Math
The daily sales at a convenience store have a mean of $1350 and a standard deviation of $150. Assuming n/N is less than or equal to .05, that standard deviation of the sampling distribution of the mean sales of a sample of 25 days for this convenience
asked by Felicia 
linear algebra
what is the basis of a subspace or R3 defined by the equation 2x1+3x2+x3=0 I know the basis is vectors and but how do you get that?
asked by jen 
math
A cone just fits inside a cylinder with volume 300cm^3. What is the volume of the cone?
asked by Ted 
accounting
Canine Company produces and sells dog treats for discriminating pet owners. The unit selling price is $10, unit variable costs are $7, and total fixed costs are $3,300. What are breakeven sales? (Points :1) $11,000 $4,714 $3,300 $7,700
asked by Monica 
Chemistry
Just a few questions about rates of reaction. A) Why are the units for average and instantaneous rates the same? because they are both measures of how quickly a reaction is occuring per unit time B) For a given set of data, two students determined
asked by Jamie 
chemistry
Flask A contains 500 ml of whater at 25 celsius and flask B contains 250 ml of water at 50 celsius. Which flask has a higher heat content?
asked by taylor 
accounting
Fixed Company produces a single product selling for $30 per unit. Variable costs are $12 per unit and total fixed costs are $4,000. What is the contribution margin ratio? (Points :1) 1.67 2.50 0.40 0.60
asked by Monica 
math
The vectors u, v are given by u = 3i + 5j, v = i  2j. Find scalars a, b such that a(u + v) = 8i + (b  2)j
asked by Michael 
Algebra
Determine the number of realnumber solutions to the equation 2x2  x  5 = 0, given the graph of y = 2x2  x  5
asked by Carmen 
math
In how many ways can a cashier give change of exactly 60 cents if he has the following coins available? 10 quarters; 10 dimes; 10 nickels
asked by joe 
Exterior angle what am I doing wrong?
Find the measure of the indicated exterior angle. Exterior angle is: 1975n Two interior angles are: 5n+21 and n+11 I set it up as: 1975n=5n+21+n+11 1975n=6n+32 165=11n but this does not make sense.
asked by bart 
Physics
University students, studying the activity of a particular radioactive isotope which had a halflife of 12.0 hours. If the original activity of the sample was 448 kBq, what would the activity be 3.00 days later?
asked by Anonymous 
algebra 2
I am taking an online class, and cant understand why when I calculate ona ti84 plus an answer I get decimal answer and my teachers answer is sq root, is there something I am not doing on my calculator? How do I convert. Example, teachers answer to the
asked by jeff 
math
1.The base of a triangle is 5cm greater than the height. The area is 33cm(2). Find the height and the length of the base? Height? Base? 2. Factor X(2)7x 3.Factor 5a(6)1080a(3) 4. Find the GCF 5x(9),5x,20= For this one I think the gcf is 5 Is this
asked by Mickey 
chemistry
What is 24388 in scientific notation? And. Give the answer to the following calculations in the proper number of significant figures? a. 25,30cm x 0.035cm.
asked by andrea 
math
On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest foot.
asked by Lia 
chemistry
Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. Note: Pay attention to significant figures. Do not round until the final answer.) The molar heat of reaction,delta H rxn , for the reaction of
asked by joe 
math
what is the fraction between 4/9 and 5/9
asked by joey 
Trig
8 csc theta  2=10 + 2 csc theta I can't do it. :S
asked by Amir 
Calculus
A pyramid with height 2h and rectangular base with dimensions 3b and 6b. Find the volume V of this solid.
asked by Kalley 
math
Justin had 44 dollars before spending n dollars on jeans. How much money remains
asked by Val 
Physics
An industrial worker accidentally inhaled a radioisotope with an activity of 0.200 kBq. The substance swallowed has a very long effective halflife and therefore the activity will not change significantly during the workerâ€™s lifetime. Every decay of
asked by Kirsten 
chemistry
what volume of methane is needed to completely react with 500 liters of oxygen?
asked by (: 
Algebra
55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: 2 + (10+1) = (2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d.
asked by mysterychicken 
Corporate Finance
A company wants to build a new factory for increased capacity. Using 3 capital budgeting methods, make a determination about the economic viability of the proposal using the following information. Building a new factory will increase capacity 30% Current
asked by Linda 
Algebra
55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: 2 + (10+1) = (2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d.
asked by mysterychicken 
visual basic
complete the program. Dim strAge as String Dim intAge as ...... StrAge=InputBox("How old are you?", "Age ask") If(strAge="") Then ............ 'Terminates the application End If IntAge=Val(strAge) Do.........((IntAge99)) MsgBox "Age is between 1 and 99",
asked by christian 
physics
An electric iron has a resistance of ohms. How much heat energy is produced in 10 minutes if the current passing through the device is 10 amps?
asked by Tyler 
chemistry(check my answer)
The overall rate of a chemical reaction is determined by a)the slowest step in the reaction mechanism. b)the fastest step in the reaction mechanism. c)ΔG for the overall reaction. d)the last step in the reaction mechanism. e)the first step in the reaction
asked by bme1 
Algebra
Determine whether the lines are parallel, perpendicular, or neither. y = 9x + 9 and y = 9x + 9
asked by Kate 
Algebra
Write an equation of the line satisfying the given conditions. Horizontal line through (2, 5)
asked by Kate 
Chemistry
How to calculate the quantity of heat gained or lost in the following change: 3.50 mol of water freezes at 0 degrees C? Would it be 6.01kJ/ 3.50 mol ?
asked by Anonymous 
english
they put their trust on her or in her
asked by flame 
Algebra
55. Find the range of y = 2x + 1. a. all real numbers b. all positive numbers Not sure.. 67. Name the Property: 2 + (10+1) = (2 + 10) + 1 a. Commutative Property of Multiplication b. Inverse property of addition c. Commutative Property of Addition d.
asked by mysterychicken 
health
What are the key anatomical parts of the cardiovascular system and how does it work.
asked by Kim 
SCIENCE?CHEMISTRY***
Dr Bob each time i do a problem on this site I have to print out answer....is there any way you know how to save it to usb stick???? I cant for the life of me find a save feature... also how do YOU when you give us a link to a site ...make it appear in
asked by ANDY 
hsm230
Assignment: HSM Law Profile Paper · Due Date: Day 7 [Individual] forum · Select a current or proposed law that impacts the delivery of human services. · Write a 1,050 to 1,400word paper in APA format that answers the following questions: o What
asked by shauntae 
PSAT /SAT
For the PSAT or SAT is there a vocab list that I can study from?
asked by Anonymous 
what can i compare middle school to?
what can i compare middle school to? (use in metaphor), based on 6th, 7th, and 8th grade. for example playing monopoly 6th grade  buying properties, 7th grade adjusting to the game, 8th grade  stress over money
asked by NEEDSHELP(: 
Chemistry
what would the quantity of heat gained or lost be for 1.25 mol NaOH(s) dissolves in water? Could you post the answer and how you got the answer. Thank You
asked by Anonymous 
ethics
Explain the Edwin Meese synddrome, giving examples from the fields of probation and parole
asked by frank 
ethics
Explain the hierarchical rule of identities. How could such a hierarchy influence the decisions of a cia agent stationed in a foreign country?
asked by frank 
ethics
given the fact that there is no national religion in the US, what application do the ethics of religious testaments have on the average American criminal justice practitioner?
asked by frank 
ethics
explain the ethics of public service. why must all criminal justice professionals adhere to such a set of ethics.
asked by frank 
chemistry
Flask A contains 500 ml of whater at 25 celsius and flask B contains 250 ml of water at 50 celsius. Which flask has a higher heat content?
asked by taylor 
11th grade English
Write your own journal entry from the perspective of a member of Bradford's colony. What do you think of these unruly pirates? What shocks you the most about these surly characters? How do the manners of the pirates differ from yours?
asked by Smith 
intermediate algebra
3/10=5/x 3x=15 x=5 could some check this for me rational expression
asked by Keaton 
math
hi if i wanna find the Maclaurin series from another existing series by integrating that series , do i need to include the constant of integration ?? Thanks
asked by William 
programming
for a list of numbers entered by the user and terminated by 0, find the sum of the positive numbers and the negative numbers
asked by nancy 
Math
3/2y3/2y+4 = rational expression reduce to lcd
asked by Angelia 
algebra
3/2y3/2y+4= 3(y)2(y+4)= 3y2y+8= y=1/8 check this
asked by Angelia E. 
english
they identify with her or they identify themselves with her
asked by flame 
chemredox
write down Oxidation equation, Reduction equation and Overall equation theres 3 equations *H2O2 + H2SO4 + KMnO4 *H2O2 + KMnO4 *and *Ethanol + H2O2 + K2Cr2O7
asked by T 
poem
Do we have to start a limerick poem with There was ........,or I can started with one day I ....... thank you
asked by natalie 
vocab
What does diminion mean?
asked by sierra (6th grade) 
math
394 cars, 57 trucks, and 23 buses ventured out in the snowstorm. 83 1/3% got stuck in the snow. How many vehicles got stuck?
asked by Kriztin 
math
The average (mean) of a and b is 10. The average of b and 10 is 1/2 of c. What is the average of a and c?
asked by joey 
religion
what role does religion play in society in North Korea?
asked by Derek 
english
she is a driving force of inspiration to the children and teenagers. Do i need an article in infront of inspiration(a or the)
asked by flame 
math
What is the 144th letter in this pattern? A B B C C C D D D D E E E E E.....
asked by gio 
social studies
name 2 homes where some of the most famous authors of Florida have lived and visit at least 2 places they have described in their books.
asked by Helen 
Math
solve by the substitution method 7x+4y=14, x=477y please help
asked by Krista 
Math
please solve the 6/7 + 1/4x thank you
asked by Tyrone 
microeconomics
Help!! There are two firms who collude and behave like one firm but with two plants. MC1=10, MC2=30. Market demand Q=200P. Two plants maximize profits. What is total profit nad production, price in each plant?
asked by Aneta 
english
for the word manner, when do i use it as plural
asked by flame 
hum/205
week9 Romans, Islamic, and Indian civilization. wHAT is the purpose of the piece, who's responsible for paying for the piece,how the piece was made, description of the meaning of the piece, description of the transhistorical links to the piece.
asked by Charles 
4th grade
Is it grammatically correct to begin a sentence with "what" if it is not a question or exclamation? For example: What a tree looks like.
asked by sheryl 
Math/Albebra
Give the equation of the circle with the given center and radius. Center at (0, 0); radius = 5
asked by Justin 
algebra
Use the discriminant to determine how many realnumber solutions the equation has. s2  5s + 6 = 0
asked by Abby 
math
A cone just fits inside a cylinder with volume 300cm^3. What is the volume of the cone?
asked by Ted 
math
Without graphing, identify the slope and the yintercept. y = 4x + 5
asked by Abby 
english
her failure is their failure also. can i rewrite that to her failure is theirs also
asked by flame 
Algebra
Could someone tell me the solution for x^2  3x = 0, i know x = 3 but I just need to know how to get there please
asked by Tan 
psychology
wite a 7 page research paper in apa format on post traumatic stress disorder in combat personnel
asked by bradley 
english
they want to imitate her or imitate as her
asked by flame 
english
is there anything wrong with this sentence: it manipulates her feelings from immaturity to seriousness
asked by flame 
mathPLEASE CHECK AND HELP
find the surface area and volume of the right circular cylinder. The radius is 3 and height 6. This is what I put for volume: v=pir^2h pi(3cm)^2 6 cm= 54pi cm cubed can you please check this and show work on how to do the surface area? Thanks.
asked by crystal 
mathPLEASE CHECK
using the pythagorean theorum you have a right circular cone with a radius of 3 and height of 6 is this how you would figure this out c^2=3^2+6^2 c^2=9+36 c^2=45 c=6.7
asked by crystal 
algebra 2
what is the 35th term of 5+11+17.....?
asked by Sue diaz 
Chemistry
What is the formula for calcium oxalate dihydrate when 100 degree Celsius heat is added?
asked by Christine 
chemistry
How many significant figures are in each of the following a.234 b. 2500 c.0.0034. d. 12.00 e. 0.01010
asked by andrea 
math
how do you form the probability tree for this?? The commonly used test to assess Down's syndrome risk in the unborn foetus is the 'triple test', which combines maternal age with other markers of foetal and maternal health from a single blood test. The test
asked by jessie 
math
what is 1/10 of 10 to the 6th power?
asked by malik 
math
two coins combine in value to make 3% of a $10 bill. What coins are they?
asked by Anonymous 
Drug Abuse
My 8th grade daughter is doing a poster for her 4H poster project on Hooked on fishing not on drugs. And her topic is How do drugs effect others? Can you help her with some ways that drugs effects a drug abuser's family and friends?
asked by Momof8 
Math
What Is The Least Common Multiples Of 250 And 30?
asked by Hayley 
math
what is the GCF and LCM of 36 and 84
asked by joey 
Chemistry
I am having trouble with equation writing and complex ions. Please help. Ag+ + NH3(excess)> ? Fe^3+ + SCN > ? Cr^3+ + OH(excess) > ? Cr(OH)3(s) + H+ > ? Cr(OH)4 + H202 + OH > ? Zn2+ + K+ + Fe(CN)6^4 > ?
asked by Anonymous 
math
i need help to find out 7 1/3 (seven and one third) is in a decimal? please help me.
asked by maddie 
social studies
why did slavery (during the civil war) happen? what is the significance or importance of the event?
asked by Happy Face 
math
What is true for motion in a straight line. A. if a vechile has zero velocity , it must be stationary. B.the graph of position against time has to be a straight line. C.acceleration is the rate of change of speed. D.velocity is the rate of change of
asked by JAndu Andu 
IGCSE
Is it possible to take igcse examinations in America?
asked by Vince 
Math
How to obtain formula if: Brazil's total internet users is 67510 and world's total internet users is 1544854. what is brazil's internet users as percentage of world user.
asked by JAndu 
Math
Could someone please help me with this math problem. I am lost on trying to solve this math problem. Add. Simplify if possible. s+r/sr^2 + 2s+r/s^2r Thanks.
asked by B.B. 
accounting
What would be the fee for a buyer to purchase 2 discount points on a home with a sale price of $275,000?
asked by GUY 
math
Nikki cam word process 7 words in 6 seconds. At this rate, how many words can she process in 3 minutes?
asked by joe 
trig
verify: cos(x)+sin(x)tan(x)=sec(x)
asked by Anonymous 
College Math
10 x 10 = 100 + 30 = 130 / 5 = 26  15 = 11 What is the quotient i think it is five am i right if not what would it be
asked by Jackie 
crt205
what is a fallacy
asked by nancy 
Science
What factors may be affecting the amounts of materials that are being recycled in 0ntario?
asked by Navroz 
chemistry
Waht would happen to the solubility of potassium chloride in water as the water temperature increased from 25 degrees celsius to 100 degrees celsius?
asked by Anonymous 
math
The vectors u, v are given by u = 3i + 5j, v = i  2j. Find scalars a, b such that a(u + v) = 8i + (b  2)j
asked by Michael 
10th grade
what is the molarity of 5.00 g of Na2CO3 dissolved n 400.0 mL solution?
asked by Jakobi 
math
a sqyuare based pyramid is on top of a cube .both shapes have the same base and the same height. which expression repreents the total volume of this shape? justify your answer
asked by Ted 
statistics
assume that a set of test scores is normally distributed with a mean of 100 and a standard devaiton of 20. Use the 689599.7 rule to find the following quantities: a. percentage of scores greater than 120
asked by Christine 
Math
Solve. x6/x9=3/x9. I came up with a answer of 2/3 but I don't think that is the right answer. Could someone please help? Thanks.
asked by B.B. 
Economics
The U.S. cigarette industry has negotiated with Congress and government agencies to settle liability claims against it. Under the proposed settlement, cigarette companies will make fixed annual payments to the government based on their historic market
asked by Joe 
Biology
Why is there electrical activity in the brain? Describe how it is used by neurons.
asked by Darren 
math
The height, in feet, of a freefalling object t seconds after being dropped from an initial height s can be found using the function h = 16t2 + s. An object is dropped from a helicopter 784 feet above the ground. How long will it take the object to land
asked by Rachael 
French
how can i describe a pineapple/watermelon (combined as one fruit) in french?
asked by Rebecca 
Economics
A New Hampshire resort offers yearround activities: in winter, skiing and other coldweather activities; and in summer, golf, tennis, and hiking. The resorts operating costs are essentially the same in winter and summer. Management charges higher nightly
asked by Joe 
physics
please,i need help on this question:a thin circular ring of radius 20cm is charged with a uniform charge density(rho),if a small section of 1cm length is removed from the ring.calculate the electric field intensity at the center of the ring
asked by culata 
Grammar and Composition (IN REPLY TO MS.SUE)
(I need one of the tutors from Jiskha to read my essay and fill out the revision sheet. I'm supposed to get an adult to do it, but since my parents are unable to do so, my teacher gave me permission to have an online tutor fill it out) CAN SOMEONE PLEASE
asked by y912f 
Accounting2
Were to switch inventory method under GAAP? Why or Why Not? If they are how to go about doing it?
asked by Lynda 
Math
Can someone please check my work for me? Write an equation of the line satisfying the given conditions. 9) Intersects the line y = 2 + 3x at infinitely many places. 9) A) y = 3x + 2 B) y = 2x + 3 C) y = 1/3x + 2 D) y = 2 + 3x Is the answer A Use the
asked by Nicole 
Finance
A company is thinking of investing some surplus cash in 30 years $1000 face microsoft 6% coupon bonds. It plans to pay $925 each for 10,000 of them, now and expects to sell them for $1025 each at the end of 5 years. Make a determination about the economic
asked by Linda 
spanish
identify la isla del encanto, el coqui, un estado libre asociado, San Juan
asked by sharanna 
engineering
If film contain 4.4GB of data how long would it take to download by 2Mbps connection. give your answer in seconds and in scientific notation accurate to 2 decimal place?
asked by JAndu 
geometry
In a coordinate plane how many points are both 5 units from yhe origin and 2 units from the xaxis
asked by a 
mathematics
find the equatn of a circle with (a).centre (1,2) and radius 3.(b) centre (1,3) and radius 2
asked by aminat 
Drama
4. What does the speech in question 3 mean?
asked by Gloria 
Geo
Differentiate between renewable resources and non renewable resouces.  Describe farming as a livelihood Identify examples(sourcs and type) of ANTHROPOGENIC (human Induced) gases. Explain in detail the aspect of Global Warming  Explain why it would be
asked by Rebecca 
Drug Abuse
My 8th grader is doing some research for a 4H project and needs to know how drugs affect the family and friends of a drug addict?
asked by Angel 
mathPLEASE CHECK
Find the surface area and volume of each of the following figures: d.Right circular cylinder v=pir^2h pi(3)(3)(6) pi(54) v=169.6 cubic cm sa=2pi r^2 + 2pi rh 2pi(3)(3)+2pi(3)(6) 2pi(9)+2pi(18) 56+113=169 Sa=169 square cm is this right???
asked by crystal 
writing
i am inthe 4th grade and need to write a composition. Can someone out there tell me what it is and give me an example.
asked by issac 
PreCalc
Find f(a) where a is in the domain of f. f(x) = 1/x^2 I got a few steps into it and failed :( The equation she gave me to plug it into is (f(a+h)f(a))/h
asked by Chris 
Algebra
How would u solve/simplify d+12=d^2 I also need help on 4z^2+z+5=0
asked by Michelle 
Africa
What were the problems of colonization in Sierra Leone?
asked by AL 92 
Chemistry
I know that the more polar the bond between the H and A (if HA is an acid) is, the stronger the acid will be. what does it mean for a bond to be polar? is a bond more polar if it is more electronegative? how are bonds polar and how are bonds nonpolar? what
asked by Alison 
algebra
Write an equation for an ellipse if the endpoints of the major axis are at (1,6) and (1,6) and the endpoints of the minor axis are at (5,0) and (3,0).
asked by Kay 
math
r=7.5 what is the diameter circumference, and area
asked by isabel 
Math
Multiply and simplify. 9y^6/10t^4*100t^8/81y. I crossed multiplied and got 900y^6t^8/810t^4y. I am not sure what to do next. Could someone help? Thanks.
asked by B.B. 
9th grade
in visual basic, a routine that puts a series of strings or numbers in order is called a?
asked by christian 
math
Translate the problem into two linear equations by identifying keywords that represent a mathematical operation or symbol.
asked by Ashly Morgan 
visual basic
in visual basic, notes in a program which explain what the program is doing are called?
asked by christian 
chemistry
this is a wiley plus problem and there is no reading lesson with this section so im not sure how to approach this question: The element iridium has ccp packing with a facecentered cubic unit cell. The density of Ir is 22400 kg/m3. Calculate the volume
asked by Tokey 
Algebra
Solve: 9x less than or equal to 3.6
asked by Anonymous 
Math
Find the LCM of 11(s3) and 33(s3). LCM of 11 is 11*1 LCM of 33 is 3*11 LCM is 11*3*1=33 What do I do from here? I put down 33(s3) was the answer but I don't think that is right. Thanks for your help.
asked by B.B. 
Finance
Delta Software is considering a new project whose data are shown below. The equipment that would be used has a 3year tax life, after which it will be worthless, and it will be depreciated by the straight line method over 3 years. Revenues and other
asked by JP 
Math
a) The sales representative informs you that there are two floor plans still available, and that there are a total of 63 houses available. The sales representative later indicates that there are six times as many homes available with the second floor plan
asked by Ashly Morgan 
Chemistry!!
Could anyone name the enthalpy change by name AND if it is exothermic or endothermic (why it is endo or exo) 1 mol C(3)H(8)(l) to 1 mol C(3)H(8)(g)
asked by Anonymous 
algebra
A ball falls from the top of a roof 320 feet above the ground. The formula h = 16t2 + 16t + 320 described the height of the ball above the ground, h, in feet, t seconds after the fall begins. How long will it take the ball to strike the ground?
asked by Anonymous 
Chemistry
Need help with : Balancing oxidation reduction reactions Mg(s) + HCl(aq) → Mg^2+(aq) + Cl ‾(aq) + H2(g)
asked by Anonymous 
visual basic
in visual basic, a routine that puts a series of strings or numbers in order are called?
asked by christian 
Math
Give the equation of the circle with the given center and radius. Center at (0, 0); radius = 5
asked by Don 
Philisophy
what is the difference between traditional and modern ethical thinking.
asked by Anonymous 
Math
Without graphing, identify the slope and the y intercept. y = 4x + 5
asked by Lynn 
SCI 275
I am supposed to respond to the following statement: Nonrenewable energy resources include coal, oil, and natural gas. I am really unsure how to repond to it. All of these sources are infact nonrenewable. PLEASE someone help me. Thank you
asked by QueenP 
spanish
I need to translate words in to Spanish from english
asked by sally 
Business
For a continuous random variable x, the population mean and the population standard deviation are 80 and 15 respectively. You extract a sample of 25 elements from this population. The mean of the sampling distribution of the sample mean is
asked by Donna 
Math
Use the discriminate to determine how many real number solutions the equation has. s^2  5s + 6 = 0
asked by Anthony 
Math
How do I solve this simultaneous equation 3x2y=5 (1) 2y5x=9 (2) I managed to find the value of x and that is 7 but I am having problems to substitute it's value in equation (1)
asked by Vince 
English/Music
What lyrics would you reference to indicate author Simon & Garfinkel's bias in the song the sounds of silence
asked by Maria 
Criminal Justice
Does anyone know how to writ a juvenile probation plan?
asked by Wendy 
chemistry
A 50mL Mohr buret is connected to a 1ft length of capillary tubing. The buret is then filled with water and the volume of water versus time is monitored as the water gradually flows through the capillary tubing. This process is found to be firstorder
asked by eng 
finance
I am looking at the example spreadsheet. On it are the titles, assets, total assets, liabilities & Equity (3 subs under it) operating revenues, operating expenses, and on the last page it the net income from operations. Where in these sections would I go
asked by Cynthia D. 
algebra
how did the hunter get hurt while bending over to study some tracks
asked by Anonymous 
Science
if you had paper clips, rubber bands, wood chip, straight pins, strips of aluminum foil, and glass beads. using a property of matter classify thesse objects in a table
asked by Anonymous 
English
What would be the best contrast between the two different endings in "Great expectations"?
asked by Bea 
Geometry
Figure ABCD is a trapezoid with DC = (1/3) AB. What is the ratio of area ABCD to area DCE? Provide an argument to support your answer. Could it be 1:3 ? Can you please explain?
asked by purple 
physics
What is the resistance of a 40 watt light bulb if it is it to full brilliance by a current of .33amps?
asked by Tayla 
algebra
2.3n8=1.2n+3
asked by nickl 
body organs
the bodys ongoing process of regulating the internal enviroment electrolyte balance blood chenistry temperature and so on is called
asked by robbie 
Physics
A "Bus" bar is in the form of a slab of copper 2meters long, 1cm wide, and 10 cm thick. a) What is the resistance of the bar at 0 degrees celcius? b) What potential difference is needed to push 5000 amps through the bar?
asked by Tristan 
Finance
Lear, Inc. has $800,000 is current assets, $300,000 of which are considered permanent current assets. In addition, the firm has $600,000 in fixed assets. A. Lear wishes to finance all fixed assets and half of its permanent current assets with longterm
asked by Renee 
Algebra1 9th grade
(6x3 â€“ 12x + 10) Ã· (3x â€“ 3)
asked by Anonymous 
Calculus
Given vectors u= (3, 4, 1) and v= (2, 1, 5) Find: a) u x v b)u x v
asked by Ariza 
Algebra 9th grade
(6x^3 â€“ 12x + 10) Ã· (3x â€“ 3)
asked by Anonymous 
chemistry
What amount of energy will it take to raise a 45 g piece of Al by a temperature of 27 degrees C to 35 degrees C
asked by Luis Garcia 
algebra
(12x+1)(x1)=3 12x^+1=3 12x^=13 x=1/3 check this problem
asked by Mary T 
science
how do ear defenders use the big idea of energy transfer
asked by kat 
English II
What would you call new talk today? 1.slang 2.dialect 3.improper pronunciation 4.grammar which four would you select?
asked by Betty 
"Y912f", please givethis note to your pare
"Y912f", please give the follow note to your parents. Dear Parents of Y912f, Your daughter has been receiving help from Jiskha for quite some time. Our task on this site is to "help" students learn, not do their work for them. It has become obvious that
asked by GuruBlue 
business
Is the rate equivalent to the rate ? Justify your answer.
asked by Anonymous 
US history
what were the effects of the nightly tv coverage of the vietnamese?
asked by Bianca 
Vectors  check calculation
A box is dragged with a force of 115 N up a ramp a distance of 3 m. If the force makes an angle of 35 degrees with the ramp and the ramp makes an angle of 20 degrees with the ground, how much work is done? This is what I have so far: W = F * D * cos Theta
asked by Ria 
math
how many ways can 9 cars be parked in a row of 9 parking spaces?
asked by Bob 
health
How to over come barriers of intimacy
asked by chris 
algebra
x(x13)=14 x^13x=14 x=14x Is this right I get so lost with this.
asked by Mary T 
CRT205
Can some help with week 7 assignment due day 7
asked by Nicole 
FRENCH
HOW WOULD U SAY "TRAVEL SECTION" AS IN A NEWSPAPER SECTION. IM MAKING A NEWS ARTICLE AND I NEED A TRAVEL SECTION MERCI :)
asked by S. 
algebra
x^+5x6=0 x^+5x6=(x+2)(x3) (x+2)(x3)=0 x+2=0 or x3=0 x=2, or x=3 check this please let me know if right.
asked by Johnnie 
Chemistry
2HI(g)> H2(g) + I2(g) The rate law for the decomposition of HI is r=k[HI]^2. The rate of the rxn was found experimentally to b 2.5 x 10^4 mol/L x s where the HI concentration was 0.0558 M. Are these values ready to plug in to the equation, or because
asked by Jamie 
Biology
How does depth of view affect viewing biological phenomena that are thick?
asked by Mary 
social studies
describe the main events of the American Revolution
asked by chooey 
Algebra
Give the equation of the circle with the given center and radius. Center at (0, 0); radius = 5
asked by Michelle 
technolgy and society
one skill that's generally expected of technology workers is
asked by melissa 
Algebra
49(2x3)+7(x1)
asked by Tara 
Chemistry
Hi I need help with another balancing oxidationreduction reaction: Cu(s) + Ag^1+(aq) → Cu^2+(aq) + Ag(s) My work: Cu (s) > Cu^2+ (aq) + 2e 2 [1e +Ag^1+ (aq) > Ag(s)] Cu(s) + 2 Ag(aq) > Cu (aq) + 2 Ag (s) Is this right? And I need help with this
asked by Anonymous 
Math
What is the relationship of the two lines with the equations 3y=x6 and y=3x+1? I am very confused. Please explain how you got your answer!
asked by Marta 
Math
6/7 + 1/4x
asked by Tyrone 
english
is there anything wrong with this sentence: they value freethinking behavior, expressing oneself freely and individualism where one should act according to themselves
asked by flame 
geography
why are both metallic minerals and fossil fuels found in canada's arctic ecozones.
asked by Ted 
english
from an impulsive to a mannered girl. or from an impulsive girl to a mannered girl
asked by flame 
chemistry
how can you determine molecular polarity based on molecular shape?
asked by kellen 
Math: Help: probability
Which answer, if any, is correct to: Two cards are drawn without replacement from an ordinary deck of 52 playing cards. What are the odds against drawing a club and a diamond? My options are 13:204; 204:13, 13;191; or 191:13 I had two different people help
asked by bart 
Help in math probability
I have a total of three different answers that I got and had help with and nothing definitive. One way that I figured it out I received 4/7. I asked two other people and they gave me two completely different answers. Assume that the weight loss for the
asked by bwb 
Math
Find the slope of the line passing through the pair of points. (3, 2)and (4, 2). I got 4/7 
asked by Maybug 
english
so i should write it this way: they value freethinking behavior, expressing themselves freely and individualism where they should act according to themselves
asked by flame 
valedictorian speech topic?
I'm supposed to write an endoftheyear reflection of my middle school years(valedictorian speech).. help? my teacher choose me to write the speech, almost like a valedictorian speech... its supposed to be describing "my educational experience of 6th,
asked by NEEDSHELP(: 
IT 210
Generate an objectoriented design for a system that keeps tracks of your CD and DVD collection. · Identify each of the classes, associated data, and operations for the classes. · Generate the pseudocode for each of the classes as demonstrated on p. 251.
asked by Joe 
english
her behavior is like a reminiscence of their childhoods. or her behaviors are like reminiscence of their childhoods.(do i need an "s" on reminiscence)
asked by flame 
english
they will not criticize her bad influence since [they themselves are like this also] or [they are like this also]. Do in need the word themselves in between and do i need to make influence as plural
asked by flame 
math
The length of the Loch Ness monster is 30 meters plus a third of its own length. How long is the Loch Ness monster?
asked by gio 
english
As for the teenagers, Ashlie’s behavior is like a reminiscence of their childhoods or Ashlie's behaviors are like reminiscence of their childhoods. What i'm confused is that do i need to make behavior as plural
asked by flame 
english
do we refer to disney as they or it
asked by flame 
business math
a computer store sold 300 items store sold 6 times asa many hard drives as theyn did cdrom drives and half as many floppy dtives as hard drives how many of each item
asked by judy 
Math
6/7 + 1/4x
asked by Tyrone 
Statisics
3. Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. b. The median is greater than the first quartile. c. The third quartile is
asked by Carol 
algebra
a+4/2=a+4/a= a^+4a+ a+4a a^=44 a^=8 Check this for me
asked by Angelia E. 
SCIENCE?CHEMISTRY***
Am using the inventory method at moment but am stuck on how fill i the inventory for __Agl+__Fe2(CO3)3> __Fel3+__Ag2CO3 I think the brackets are throwing me Hows this element b4 after  Ag 1 2 l 1 3 Fe 6 1 CO 3 3 I
asked by ANDY 
Algebra
State whether the equation represents a linear, quadratic, or exponential function. x^2 + 6 = 8 x
asked by Carmen 
statistics
assume the body temperature of healthy adults distributed with a mean of 98.20F and a standard deviation of 0.62F. If you have a body temperature of 99.00F, what is your percentile score?
asked by Christine 
intermidiate algebra
converting to LCD 3/4b^9, 2/2b+3, 5/2b^3b that sign over the "b"represent 2 I have to work this problem so help me.
asked by Keaton