Questions Asked on
January 2, 2012

Geometry Question
B is the midpoint of segment AC and D is the midpoint of segment CE. Solve for x, given BD=3x+5 and AE=4x+20. Sorry I couldn't get the link for the picture but, the diagram is a picture of a triangle with a C at the top, and A and E on the bottom angles,
asked by Jenn 
Trig
sinAsin2A+sin3Asin6A+sin4Asin13A/sinAcos2A+sin3Acos6A+sin4Acos13A = tan9A
asked by Kewal 
physics
An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 x 1026 kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.82 × 1046 kg·m2. From these data, estimate the
asked by Joe 
calculus
2. Consider the function f defined by f(x)=(e^X)cosx with domain[0,2pie] . a. Find the absolute maximum and minimum values of f(x) b. Find the intervals on which f is increasing. c. Find the xcoordinate of each point of inflection of the graph of f.
asked by Yoona 
pre calc
The minute hand of a clock is 7 inches long. How far does the tip move in 16 minutes? a.56/15pi b.8/105pi c.4/105pi d.28/15pi
asked by jim 
science
please help...A wheel 1.0m in diameter is rotating about a fixed axis with an initial angular velocity of 2rev.s1.the angular acceleration is 3rev.s1. (1)compute the angular velocity after 6s. (2)through what angle has the wheel turned in this time
asked by anonymous 
Mathprecalculus
Given tan theta=8/5 and sin theta < 0, find cos theta.
asked by shandra 
physics
A wheel of diameter 28.0 cm is constrained to rotate in the xy plane, about the z axis, which passes through its center. A force = (38.0 + 39.0 ) N acts at a point on the edge of the wheel that lies exactly on the x axis at a particular instant. What is
asked by Joe 
physics
A spring has k=88 N/m. create a graph and use the graph to determine the work needed to stretch the spring from x = 4.1 cm to x = 5.8 cm, where x = 0 refers to the spring's unstretched length.
asked by Anonymous 
science
How many grams of copper sulfate is needed to make 1125L of 25 ppm solution
asked by tracey 
physics
A body of mass 2 kg is dropped from the top of a tower of height 100m. If the acceleration due to gravity is 10 m/s2 calculate the K.E at the end of 5 seconds
asked by Anonymous 
science
Ho many millilitres of sucrose is needed to make 25 L of liquering soluton at 20% v/v
asked by tracey 
calculus
2. Consider the function f defined by f(x)=(e^X)cosx with domain[0,2pie] . a. Find the absolute maximum and minimum values of f(x) b. Find the intervals on which f is increasing. c. Find the xcoordinate of each point of inflection of the graph of f.
asked by Yoona 
Psychology
How can false consensus be applied to elections?
asked by adrina 
chemistry
What are the the missing reactants for the doubledisplacement reaction that produces PF5 and AsCl3 ?
asked by Crystal 
finance
13. A project has the following cash flows. What is the internal rate of return? Year 0 cash flow $443,600 1 $224,800 2 $224,800 3 $ 67,200 (Please calculate the solution and show your work)
asked by Vanessa 
science
If 20g of Ca(0H)2 took part in the following reaction, how much CaCl2 would be formed. Ca(0H)2 + 2HCl to CaCl2 +2H20
asked by tracey 
science
If 100g of CuSO4 took part in the following reaction how much Cu(0H)2 would be formed CuSO4 + 2NaOH to Na2SO4 + Cu(OH) 2
asked by tracey 
algebra
Two expressions for calculating the drug dose for young children are: (2t^3 + t^2 t)a / 48t^2 24t and (3t^2 2t)a / 3t^2 + 34t  24 where t is the age of the child in years and a is the adult dose. If the adult dose for a pain killing drug is 250mg, then
asked by dominic 
Chemistry
Find delta G knot for the following reaction: 2Ch3OH(l) + 3O2(g) > 2CO2(g) + 4H2O(g)
asked by Summer 
algebra
A trader buys tea for $1200 and sells it for $1550. Per sack of tea he makes a profit of $50. How many sacks of tea did he buy? Is the answer 7?
asked by Anonymous 
Physics
A hemispherical bowl of radius R is rotated about its axis of symmetry which is kept vertical. A small block is kept in the bowl at a position where the radius makes an angle Θ with the vertical. The block rotates with the bowl without any slipping. The
asked by Kewal 
GeOmEtRy!!!
Determine whether a figure with the given vertices is a parallelogram. use the method indicated. P(5,1) S(2,2) F(1,3) T(2,2); Slope Formula
asked by VeRoNiCa C. 
Mathprecalculus
Given tan theta=8/5 and sin theta < 0, find cos theta.
asked by shandra 
physics
A cat chases a mouse across a 1.5 m high table. The mouse steps out of the way, and the cat slides oﬀ the table and strikes the ﬂoor 1.0 m from the edge of the table. The acceleration of gravity is 9.81 m/s 2 . What was the cat’s speed when it slid
asked by kesha 
algebra
At the local ballpark, the team charges $5.00 for each ticket and expects to make $1,300 in concessions. The team must pay its players $1,800 and pay all other workers $1,500. Each fan gets a free bat that costs the team $3.00 per bat. How many tickets
asked by codi 
algebra
Mellissa receive three times as many points as janice. how to write that expression
asked by gabriel 
math
week 1 3 miles week 2 7 miles week 3 11 miles week 4 15 miles sophia predicted that jhon will run 32 miles during 9th week. use words symbols or numbers to explain wether sophia's prediction is correct
asked by gabriel 
College Algebra
Penn foster College Algebra exams...
asked by Sam Shah 
Chemistry
The reaction describing the formation of ozone from oxygen is shown below. 3 O2(g) 2 O3(g) Calculate Grxn at 288 K for this reaction in a flask where [O2] = 3.419 x 102 M and [O3] = 5.783 x 104 M. Assume G° = 326 kJ. Use molarity to construct the
asked by Summer 
World history
During the middle ages, in which of these societies did invasion, ang migration NOT play a significant role in social, cultural, and economic change? A. Byzantium B. Kievan Russia C. Mali D. Song China
asked by Anonymous 
Sociology
Can you help me relate what I call dangerous dogs, specifically, like dogs who attack other dogs on a walk and then go on to attack the person walking the dog to the 3 sociological perspectives: functionalism, conflict and interactionism Please if you can
asked by Sue 
pre calc
a kite currently flying at an altitude of 16 meters above the ground. If the angle of elevation from the ground to the kite is 30 degrees, find the length of the kite string to the nearest meter.
asked by jim 
english
please teach me which sentence is correct in english gammar. 1. It does not have to be a goodlooking. 2. It does not has to be a goodlooking.
asked by jessie 
Algebra
69% of the students at a school are involved in afterschool activities. There are 598 students in the school. Which is the best estimate of the number of students in after school activities? A. 360 B. 380 C. 420 D. 450
asked by Robin 
Psychology
How does hindsight bias relate to a presidential election?
asked by lilly 
Algebra
Use scientific notation to multiply the following two numbers. Express the answer using scientific notation; retain all nonzero decimal places (1.9 • 10^4) • (8.4 • 10^5)
asked by yolanda 
7th gr math proportional relationships
music down loads cost .95 cents each . is this a proportional relationship?
asked by brenda 
Physics
A turn of radius 20m is banked for the vehicles going at a speed of 36km/h. If the coefficient of static friction between road and the tyre is 0.4, what are the possible speeds of a vehicle so that it neither slips down nor skids up ?
asked by Kewal 
Algebra
Help me solve this please ::::Divide: ã10a/16y
asked by Chelsea 
C++
Write a function that takes an int argument and doubles it. The function does not return a value.
asked by Kewal 
history
The basis for the alphabet developed by the Greeks came from
asked by Anonymous 
math
what are these words unscrambled: untoegrnc visteiop unrlerpadecpi please help
asked by matt 
Biology
what would b possible sources of errors for a potato experiment involving osmosis with potato going into salt solutions ( 50% and 25%) and also potato going into 100% distilled water?
asked by iamme 
math
is 7pi/6 an irrational number?
asked by sam 
Math
The perimeter of a rhombus is 40 cm and the distance between a pair of parallel side is 5.6 cm. If the length of one of its diagonals is 7 cm, find the length of the other diagonal.
asked by Kamal 
physics
An 89 N box of oranges is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 1.20 m/s each second. The push force has a horizontal component of 25 N and a vertical component of 30 N downward. Calculate the coefficient
asked by Jules 
math
The area of the wall you are going to paint is 50 feet2. If the width is half the height, what are the dimensions of the wall? In answering this problem follow the steps below: 1. Represent the height as ‘x’ and then write the width in terms of x (for
asked by Jennifer 
history
Both Johnson and Lincoln were criticized for "abuse of power." Give examples for each man. Is it hypocritical to praise one and damn the other?
asked by Anonymous 
physics
What is force defin it
asked by Vivek 
trigonometry
I need help!!!! In the right triangle shown below, OG = 7, DG = 8, and m
asked by lana 
Cultural diversity
The federal government has a lot of programs in place to hire the Natives and this is often run by the Bureau,however, if this is in place, why army the Indians getting the benefits? Who is swinging the money?
asked by Sara 
physics
I have rope of 4 meters. I want 1.85 meters of rope from that rope. i don't have scale to measure the length of the rope. how can i get the rope of 1.85 meters exactly?
asked by Bhaskar 
Functions
Given the following function f(x)=x^210x. Find the domain, range and decreasing intervals?
asked by Jennifer 
physics
Inclined plainon Hypotenuse weight of 250 Newton is placed and the base distance is 9 m. What is the minimum force required to lift the weight up?
asked by Anonymous 
piecewise function
f(x)={2x1 ifx>1 {4 if 1¡Üx
asked by Jennifer 
Maths
When J gives A $6, they will both have the same amount. When A gives J $6, she will have 1/3 of J's amount. What are the amounts they both have at first?( please do not solve by algebra, i have not been taught algebra)
asked by Mathshelpme 
science
As the consultant for KU Consulting, you have been authorized to change the existing facility (limited construction budget) and/or refine the process flow of the manufacturing area. Operational limitations: All changes must be completed within a 60 day
asked by kaye 
GEOMETRY ONE QUESTION PLEASE HELP?!!
Name the smallest angle of triangle ABC, segment AC is 9, segment CB is 10, and segment AB is 8.
asked by Lily 
Geometry One Question
Three security cameras were mounted at the corners of a triangular parking lot. Camera 1 was 151 ft from camera 2, which was 122 ft from camera 3. Cameras 1 and 3 were 139 ft apart. Which camera had to cover the greatest angle? camera 1 camera 2 cannot
asked by Flower 
Functions/End behavior
f(x)=x^2(x^22)(x+2) Determine the end behavior, find the power function that the graph of f resembles for large values of x Find the maximum number of turning points
asked by JB 
History
what were key changes in the roles that women played in American societies from 19001929, and how were these changes reflected in the way women were portrayed in the media during that time
asked by onya 
Prob. & Statistics
If one event, say Black, has P(.70) and another event, say Red, has P(.30). What is the probability in ten events of alternating choices, Red then Black, and being 100% correct, 90% correct. What should be the expected % correct and what is the standard
asked by Joe D. 
math
a particle with initial velocity of 200m/s travels 1500m with uniform retardation 10m/s2.what is the time reqd? explain reason for two answer
asked by debsubhra 
Geometry
What point is on the perpendicular bisector of the segment with endpoints (3,4) and (9,4)?
asked by Anonymous 
English?
Identify the tense of the underlined verb. Laura( has been writing) a novel for the past two years. present progressive past progressive present perfect progressive past perfect progressive
asked by Lovely 
History
The Federal government has a lot of programs in place to hire the Natives and this is often run by the Bureau, however, if this is in place, why aren't these Indians getting the benefits. Who is swindling the money?
asked by Sara 
reposting english correction
Hi, Writeacher this is my reposting from the Jack and the Beanstalk story. #1 Well in the beginning of the of the story he was a caring good boy. So, he was a good character. The only bad thing he did was stealing from the ogre. #2 In the beginning of
asked by Anonymous 
math/calculus
lim as x>+1 x^3 1/x^2 1 lim as x>1 x^3 1/x^2 1 lim as x>1 x^3 1/x^2 1
asked by angie 
Math(urgent!!)please!
3/4(2x1)5 is equal or greater than 5/4(x3)
asked by Nicola 
math/calculus
let f(x)=ln(x)x>0 let k(x)= f(g(x)) and m(x)= f(g(x)) a) Find the domain of the function K(x). b) Find the domain of the function M(x). c) Find the value of k'(5)
asked by angie 
math/calculus
f(x)= the absolute value of x^26x7 a) Find a piecewise defined function that has no absolute value involved b) Let g(x)=f(x) for x is greater than or equal to 7 find an expression of g^1(x) c. give the domain and range of g^1(x)
asked by angie 
physics
Bill kicks a rock oﬀ the top of his apartment building. It strikes a window across the street 11 m away. The acceleration of gravity is 9.8 m/s 2 . If the window is 22 m below the position where Bill contacted the rock, how long was it in the air? Answer
asked by kesha 
Rational Zeros
List all possible rational zeros for the polynomial below. Find all real zeros of the polynomial and factor f(x)=2x^4+19x^3+37x^255x75
asked by JB 
College Algebra
Solve the following equation in the complex number system x^4+x^3+4x^2+10x60=0
asked by Jennifer 
C Programming
I need help creating a program that uses a menu with options to enter student information (name, ID, GPA), print student information, or quit the program. Use data files and FILE pointers to store and print information entered.
asked by Jackie 
finance
All techniques with NPV profile mutually exclusive projects. Projects A and B, of equal risk. Are alternatives for expanding Rosa Company’s capacity. The firm’s cost of capital is 13%. The cash flows for each project are shown in the following table.
asked by Vanessa 
World history
What religion are the four noble truths associated with ?
asked by Anonymous 
chemistry
C3H8 (g) + 5O2 (g) 3CO2 + 4HOH If such an oxidation is carried out on a gaseous mixture prepared by mixing 6.1 grams of propane and 11.0 L of oxygen measured at 1.0atm and 150 degrees celcius, what will be the total final volume under the same conditions
asked by mackenzie 
geometry
Please help! In triangle RST,segment XY parallels segment RS. If TX=3, XR=TY and YS=6 find XR.
asked by Quinton 
Math
Could someone give me an example of a linear eqution using elimination to solve the systems of equations?
asked by Angel 
Chemitry
3moles of sodium hydroxide will neutralize 1mole of citric acid,what volume of 2moles of sodium hydroxide solution will neutralize 50cm of citric acid solution?
asked by Zuhur 
World
Proximity to China allowed the introduction of Buddhism and Confucianism into which state?
asked by Anonymous 
World
What was one major difference between the Inca and the Aztec civilizations ?
asked by Anonymous 
History
How was the Inca and Aztec empires similar ?
asked by Anonymous 
World history
What was one major factor in the spread of Eastern Orthodoxy ?
asked by Anonymous 
calculus
consider the function; f(x)=x^43x^21 a) Find all the point where f'(x)=0 b) Use the second derivative test to classify the stationary points?
asked by Tatoosh 
science
how is it possible a can with calculated density greater than 1.00g/ml could have floated?
asked by terry 
chemistry
If 10 g of C2H2 is mixed with 80 g of Br2, what masses of c2h2br2 and c2h2br4 will be formed? Assume that all the C2H2 has reacted.
asked by Anonymous 
chem
How many liters of 1.00 M HCl must be added to 50.0 ml of 0.500 M HCl to give a solution whose concentration is 0.750 M?
asked by Anonymous 
math
what is a function? if the input is 72 what is the output
asked by nya 
statistics
Use the data given in table 13.1 on page 846 to construct a frequency distribution with a first class ( in ten thousands ) of 150296.
asked by Charles 
math, algebra
How much should you deposit right now at 6% compounded monthly so that you can withdraw $1000 each month for 10 years? thanks in advance!
asked by dominic 
math, algebra
Two expressions for calculating the drug dose for young children are: (2t^3 + t^2 t)a / 48t^2 24t and (3t^2 2t)a / 3t^2 + 34t  24 where t is the age of the child in years and a is the adult dose. If the adult dose for a pain killing drug is 250mg, then
asked by dominic 
ENGLISH
What responsibilities did Marilyn Monroe have?
asked by MichelleRenee 
algebra
It takes 30 days to fill a laboratory dish with bacteria. If the size of the bacteria doubles each day. How long did it take for the bacteria to fill one half of dish?
asked by Anonymous 
algebra
If two typists can type two pages in two minutes, how many typists will it take to type 18 pages and 6 minutes?
asked by Anonymous 
Chemistry
For the reaction: 2 NO(g) + 1 O2(g) 2 NO2(g) Calculate K, the equilibrium constant, from thermodynamic data at 281 K. (Hint #1: Assume that S and H do not change with temperature.) (Hint #2: Work in J/mol)
asked by Summer 
algrbra
If a hen and a half lays an egg and a half in a day and a half, how many eggs will six hens lay in six days?
asked by Anonymous 
Math Finance
How much interest does $2560 earn in 17 months at a rate of 5 1/8 ?
asked by Clara 
English
I find it difficult to check these sentences since the punctuation is missing, the word choice is unclear and they contain grammar mistakes! I really hope you can help me. I think we need to simplify the sentences. 1) Mary Shelley's Frankenstein, unlike
asked by Henry2 
Pattern Help?
I don't understand this rule... 0,1 1,8 2,15 3,22 4,29
asked by Anonymous 
physics
How much work is needed to stop a 20g bullet moving with speed of 150m/s
asked by Dasuki 
math
luke is thinking of two numbers whose sum is 14 and whose difference is 6. what numbers is luke thinking of?
asked by Ron 
french
what are regular and inregular french er verbes?
asked by Annabelle troy lopez 
science 7th grade
How is it possible that a can with a calculated density greater than 1.00g/ml could have floated (in water)
asked by terry 
Math
what is scale
asked by Zachary 
History
I have to write three major events or ideas from the book Tortilla Flat by John Steinbeck. I don't really know what could be considered as a major event. I know one can be that Danny died, falling into a ditch while he was drunk. Im not sure what else to
asked by Anna 
pre calc
from a distance of 50 feet from the base building, the angle of elevation to the top of the building is 68 degrees. estimate the height of the building to the nearest foot. a.124 b.20 c.19 d.46 i think its d?
asked by jim 
World history
The spread of Bantuspeaking peoples over southern Africa before 1400 CE can be best explained by their , A. Conversion to Islam B. use of cavalry C. Centralized political systems D. Knowledge of agriculture
asked by Anonymous 
World history
Inca and Aztec empires were similar in that both A. Developed from Mayan civilization B. acquired empires by means of military conquest C. Independently developed iron technology D. Depended entirely on oral record keeping
asked by Anonymous 
World history
In comparison to medieval culture, Renaissance culture was A. More concerned with things of the earthly world B. disinterested in classical models C. Based less on urban vitality and expanding commerce D. More otherworldly and religious
asked by Anonymous 
MATH plz helo check my answer
3 ≤ 2x  5 < 13 i thing the answer is 1 < x < 9 and how would you graph this on a number line so MY NUMBER LINE IS 1 TO 9, SO AT 1 i have a closed circle and at 9 i have a open circle and its shaded in is it right
asked by lisa 
World history
Which of the following factors represents the most significant cause of the growth of cities in AfroEurasia in the period 10001450? A. Climate Change B. increased interregional trade C. Decreased agricultural productivity D. Increased invasions
asked by Anonymous 
World history
Whih of the following was the most important factor in enabling the Spanish to defeat the Aztec Empire ? A. The Spanish were able to field larger armies than in the Aztecs. B. Spanish tolerance of Aztec religion and culture weakened Aztec resistance. C.
asked by Anonymous 
World
In general, how did Islam spread to southeast Asia? A. Isolated regimes were revisited by dervishes and other Sufi sects. B. Islam was carried to southeast Asia from china C. trade to southeast Asia from Africa and Persia established Islamic centers on the
asked by Anonymous 
social studies
In what ways (political, technological, cultural) has the world of Andrew Jackson become "unrecognizable" from the world of George Washington?
asked by Anonymous 
World
What was the commen cultural trait of the urbanized trading ports of the east coast of Africa? A. A single ring family from the Malinke tribe. B. a commen descent from refuges from Badhdad C. The artist style of the nok culture D. Bantu  based and
asked by Anonymous 
World history
Unlike the Catholic Church, Byzantine Orthodox missionaries A. We're frequently merchants who traded while they preached. B. permitted people to use local languages in religious services and literature C. Were sent out the religious, not political,
asked by Anonymous 
Algebra
Which must be a whole number? A. The time it takes to drive 300 miles at 55 mph B. The area of a circle with a radius of 5 feet C. The area of a triangle with base of 15 and height of 9 D. The number of books in 12 bookstores
asked by Robin 
math
what is 12 1/5  4 4/5?
asked by kate 
pre calc
sin 20 pi cos 9 pi cos 13pi/2 sin(17 pi0 are all of these undefined?
asked by jim 
Geometry Question fillintheblank
When three or more lines intersect at one point they are, ______. Thank You ^0^
asked by Jenn 
HCA/220
How would you ensure that your staff and other health care professionals are proficient in medical abbreviations and terminology?
asked by mbevz 
physics
a comet experiences a uniforn acceleration from 60m/s to 183m/s what is the rate of acceleration?
asked by ricky 
Math
The second of two numbers is 6 times the first. Their sum is 77. Find the numbers.
asked by Lisbett 
Radical expressions
What is the process we follow when adding and subtracting radical expressions? Explain the process and demonstrate with an example.
asked by Ashley A. 
Radical expressions
What is the process we follow when multiplying and dividing radical expressions? Explain the process and demonstrate with an example.
asked by Ashley A. 
Calculus
1/a+1 + 1/a1 I solved this out by multiplying the (a+1) by (a1) and multiplying (a1) with (a+1) To get (a+1)(a1) as the denominator. Then I did the same with the numerators and got this: 1(a1) + 1(a+1)/(a+1)(a1) And I got 2a/(a+1)(a1) But still
asked by Untamed 
Trig
Half Angle Identities cosx = 7/25 greater than 270 deg and less than 360 Determine cos 1/2x a. 7rt2/10 b. 7rt2/5 c.7/25 d.4/5 I get 7rt2/5 Is this correct??
asked by Don 
Calculus
Integrate dx/xlnx. What method am I supposed to use? I'm totally lost.
asked by W 
Algebra
What is the process we follow when multiplying and dividing radical expressions? Explain the process and demonstrate with an example
asked by Ashley A. 
Calculus
Integrate (1/2)sin(x^(1/2))dx. I've tried using usubstitution, with u=sin(x^(1/2)). du would then = ((1/2)x^(1/2))(cos(x^(1/2))). As you can see, this only make the problem more complicated. I don't get what to do. Thank you in advance!
asked by W 
political science
The American people have long debated the extent of the Necessary and Proper Clause. Write a list of questions that could be applied to any proposed act of Congress to judge whether or not it is necessary and proper
asked by Anonymous 
English
10 words of merry things 3 words of frosty things 10 words of musical gifts 9 words of things with bells
asked by Amanda 
7th grade math
what are the rules for these two problem? I can not figure it out. I spent 30 minutes trying to figure it out 1, 10 2, 9 3, 8 4, 7 lI know the left is increasing by one and the right is decreasing by one but I can't find an equation for this. and the
asked by hello 
World
Will the world end?
asked by Blob 
math
solve for the unknown:log 5〖1/25〗+log 164log(1/3)〖1/9〗=m
asked by Anonymous