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Questions Asked on October 8, 2009

x is a random variable with the probability function: f(X) = x/6for x = 1, 2 or 3 the expected value of X is?
1. 3 answers
2. asked by Shellie
3. 13,143 views
I have to write an essay on this topic:54. Compare and Contrast Switzerland and France in terms of language and culture. Before
1. 7 answers
2. asked by mysterychicken
3. 4,019 views
A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.30 m above. The keys are caught
1. 2 answers
2. asked by blair
3. 3,817 views
Please help me out, I can't figure out the process for answering this question and my TA is of no help,A 0.11- ball is placed in
1. 3 answers
2. asked by Matthew
3. 3,780 views
The perimeter of a rectangle is 42 feet and its length is 3 feet less than 5 times its width find the dimensions of rectengle
1. 2 answers
2. asked by hamza
3. 2,661 views
A person walks first at a constant speed of 4.70 m/s along a straight line from point A to point B and then back along the line
1. 3 answers
2. asked by Zoe
3. 2,312 views
I have no idea how to do this. Anyone help?A cyclist passes a race check point at +5.5m/s and then accelerates ata constant rate
1. 1 answer
2. asked by me
3. 2,297 views
1. What about today's society reinforces American civic values?2. What about today's society undermines American civic values?
1. 2 answers
2. asked by In great need of help
3. 2,254 views
At what altitude above the Earth's surface is the acceleration due to gravity equal to g/128?i did g/128=(G*Earth's mass)/r^2
1. 1 answer
2. asked by jawn
3. 2,142 views
Two cards are drawn with replacement from an ordinary deck of 52 playing cards. What is the probability that the first card is a
1. 2 answers
2. asked by Gerry
3. 2,079 views
A pizza shop offers nine toppings. No topping is used more than once. What is the probability that the toppings are pepperoni,
1. 1 answer
2. asked by Sharon
3. 2,053 views
Given the following equations:2 H2 (g) + O2 (g)--> 2 H2O (l) deltaH = -571.6 kJ N2 (g) + O2 (g)-->2 NO (g) deltaH = +180.5 kJ N2
1. 1 answer
2. asked by Katherine
3. 1,957 views
How many different ways can 5 people be seated on a bench?
1. 3 answers
2. asked by Sharon
3. 1,859 views
Rewire each statement as two if-then statements that are converses of each other.18. Two angles are supplementary if and only if
1. 2 answers
2. asked by James
3. 1,753 views
How does one go about solving this?A skateboard rider starts from rest and accelerates at a constant +.50 m/s^2 for 8.4s. What
1. 2 answers
2. asked by brad
3. 1,743 views
a buffer composed of 0.50mol acetic acid and 0.50mol sodium acetate is diluted to a volume of 1.0L. The pH of the buffer is
1. 2 answers
2. asked by millie
3. 1,734 views
Which of the following functions have a derivative at x=0?I. y= absolute value(x^3-3x^2) II y= square root(x^2+.01)- absolute
1. 4 answers
2. asked by Mark
3. 1,670 views
a buffer is prepared by combining 10.0g of NaH2PO4 wiht 150mL of 0.20M NaOH and diluting to 2.0L. What is the pH of the buffer,
1. 3 answers
2. asked by kathryn
3. 1,554 views
The acceleration of a certain rocket is given by ax=bt where b is positive constant, find the position and velocity at t=5.0s if
1. 1 answer
2. asked by sally
3. 1,547 views
Using mechanics of materials principles (ie. equations of mechanical equilibrium applied to a free-body diagram), derive the
1. 1 answer
2. asked by Z32
3. 1,527 views
Alexander wants to know exactly how many bars to pack in his backpack for the journey. To provide a margin of safety, he assumes
1. 1 answer
2. asked by carla
3. 1,509 views
A person pushes a 16.0 kg lawn mower at constant speed with a force of 70.0 N directed along the handle, which is at an angle of
1. 1 answer
2. asked by DJ
3. 1,490 views
What is the number 1 essay writing rule?A.Edit and revise your essay. B.Always write five paragraphs. C.Always brainstorm before
1. 9 answers
2. asked by larry
3. 1,440 views
How many ways can 12 people be seated about a round table?
1. 1 answer
2. asked by Sharon
3. 1,359 views
How many electrons are transferred when C3H7OH burns in oxygen to form carbon dioxide and water?I have no idea where to start.
1. 2 answers
2. asked by Suzie
3. 1,319 views
This is another problem that I need clarification on since no one seems to be of any help at my school,A pulley system is used
1. 2 answers
2. asked by Matthew
3. 1,294 views
twice what number is equal to three times that number
1. 8 answers
2. asked by Mayah
3. 1,277 views
1. Capstone CheckPoint„h Due Date: Day 4 [Individual forum] „h Answer the following questions in a 100- to 200-word
1. 2 answers
2. asked by Anonymous
3. 1,183 views
Jules Verne in 1865 suggested sending people to the Moonby firing a space capsule from a 220-m-long cannon with a launch speed
1. 1 answer
2. asked by aRd
3. 1,169 views
Two children playing on the beach are pulling on an inner tube. One exerts a force of 45 N [N]. The other exerts a force of 60 N
1. 1 answer
2. asked by Molly
3. 1,147 views
what is the equation for the axis of symmetry for the function f(x)=IxI?(absolute value)
1. 2 answers
2. asked by Jared
3. 1,140 views
Write a projectile motion problem with the initial condition vi=15 m/s at 50° above the horizontal. Solve this problem for
1. 3 answers
2. asked by Help
3. 1,128 views
Hi, I wrote the first one wrong...The hawks won 17 more hockey games than they lost. They played 52 games in all and had 3 ties.
1. 1 answer
2. asked by zoe
3. 1,127 views
1. What is the most IMPORTANT key to an effective essay?A. A focused thesis sentence. B. Five paragraphs in the body. C.
1. 6 answers
2. asked by larry
3. 1,119 views
(i) What is binary tree (ii) Write a program to multiply any two matrices. (use any program of choice)
1. 1 answer
2. asked by Beta plus
3. 1,118 views
Joint probability density function is: x + y where 0<x<1 and 0<y<1 (0 elsewhere)Find variance of (30x + 25y) Answer is 11.48 ---
1. 0 answers
2. asked by Sean
3. 1,083 views
A small boat is headed a harbor 32km directly northwest of its current position when its suddenly engulfed in heavy fog. The
1. 2 answers
2. asked by Julie
3. 1,081 views
How do balance this equation K2S+CuSO4
1. 1 answer
2. asked by Ariel
3. 1,070 views
cell's digestive enzymes are enclosed in a membrane-bound organelle how can these molecules fuction in the cell?
1. 2 answers
2. asked by ang
3. 1,054 views
Open-top box. Thomas is going to make an open-top boxby cutting equal squares from the four corners of an 11 inch by 14 inch
1. 1 answer
2. asked by genevive
3. 1,048 views
I am solving X^4-3x^2+2=0 I factored it to be (x^2-2)(x+1)(x-1) as my book suggested. But why is it three sets of parentheses?
1. 1 answer
2. asked by Katie
3. 1,043 views
What are three examples of times when a society lost order and turned to chaos.(could be a city, country, prison setting, etc
1. 3 answers
2. asked by kim
3. 964 views
What are three examples of times when a society lost order and turned to chaos.(could be a city, country, prison setting, etc
1. 1 answer
2. asked by kate
3. 953 views
Explain the difference between the following pairs ofgeometric figures: a simple closed curve and a nonsimple closed curve a
1. 1 answer
2. asked by thomas
3. 909 views
This is another problem that I need clarification on since no one seems to be of any help at my school,A pulley system is used
1. 2 answers
2. asked by Matthew
3. 907 views
In this experiment a hot metal block at 100oC is added to cold water in a calorimeter. The heat lost by the metal block equals
1. 3 answers
2. asked by Sarah
3. 883 views
F25 = 75,025 and F26 = 121,393 where Fn is the nth term in the Fibonacci sequence. Find F27.
1. 1 answer
2. asked by chandice
3. 875 views
one I'm excited and two is where its at threes all numbers but four gets the money five percent to look up at six and seven sees
1. 1 answer
2. asked by brandi
3. 862 views
If it has been determined that the probability of an earthquake occurring on a certain day in acertain area is 0.05, what are
1. 2 answers
2. asked by jessica
3. 855 views
Im a Danish student, and I've written this summary which I would like someone to correct. Thanks in advance!In the short
1. 1 answer
2. asked by Jacob
3. 829 views
1.What is the function of DNA?2.Name 3 parts of DNA molecule 3.Describe the shape of DNA molecule
1. 4 answers
2. asked by racheal
3. 826 views
Hi -I am suppose to write about a vacation - and have at least ten preterite verbs in it. please look this over for me are the
1. 1 answer
2. asked by sam
3. 822 views
which statement about australia minerals resources is accurate?A)australia contains rich mineral resources B)**australia mineral
1. 1 answer
2. asked by henry
3. 820 views
Determine the percent yeild of:KCl3(s)--> KCl(s)+ O2(g) 2.14g of KCl3 produces 0.67 of O2 I get 123% when the correct answer is
1. 3 answers
2. asked by Sara
3. 794 views
Two children playing on the beach are pulling on an inner tube. One exerts a force of 45 N [N]. The other exerts a force of 60 N
1. 5 answers
2. asked by Molly
3. 770 views
Determine the mass of each reactant needed to give 1.5 mol of HNO3NO2(g)+H2O(l)---> HNO2(aq)+HNO3(aq)
1. 1 answer
2. asked by Sandy
3. 760 views
Liz rushes down onto a subway platform to find her train already departing. She stops and watches the cars go by. Each car is
1. 2 answers
2. asked by blair
3. 755 views
What is the weight of a 76 kg astronaut on the Moon where the value of 'g' is only 17% the strength of 'g' on the Earth? (Answer
1. 3 answers
2. asked by moe
3. 745 views
1.Which of the following is the most effective opening sentence for an introductory paragraph?A.I heard a loud sound before I
1. 3 answers
2. asked by larry
3. 745 views
A table of the U.S. population in millions indicated in 1960 the population was 181 million, in 1970 the population was 205
1. 2 answers
2. asked by Stacy
3. 742 views
my P.E. teacher asked the 100 seventh graders in my school if they could swim. Half of the boys and two thirds of the girls said
1. 2 answers
2. asked by Karl
3. 741 views
The hawks won 17 hockey games than they lost. They played 52 games in all and had a 3 ties. how many games did they lose?so 52
1. 2 answers
2. asked by zoe
3. 740 views
From a base elevation of 8200 ft. a mountain peak in colorado rises to a summit elevation of 14588 ft. over a horizonal distance
1. 6 answers
2. asked by Don
3. 737 views
what are some active and passive voice verb example sentences
1. 2 answers
2. asked by jess
3. 727 views
A British pharmaceutical company spent several years and considerable funds on the development of a treatment for HIV patients.
1. 2 answers
2. asked by Anonymous
3. 725 views
Are the highland and Midwest region of the united states similar in climates?
1. 1 answer
2. asked by Christine smith
3. 714 views
After Jordan Brilliantly performed a challenging and emotionally vibrant violin concerto, the orchestra conductor proudly
1. 1 answer
2. asked by shelby
3. 712 views
1.Which of the following can dramatically improve your grade on an essay?A.Providing an outline. B.Choosing an effective thesis
1. 10 answers
2. asked by larry
3. 708 views
If a box contains 4 red poker chips and 3 blue. What is the probability that all 3 will be red if we randomly select each chip
1. 1 answer
2. asked by Sharon
3. 707 views
Complete with the correct form of the verb boire and finsh the sentence.Part 1 1. -Qu'est-ce que vous ---------? Answer: buvez
1. 2 answers
2. asked by an unknown french girl
3. 704 views
True or false? In every triangle, the centroid, incenter, and circumcenter are collinear.
1. 1 answer
2. asked by thomas
3. 695 views
Do you guys know of a website where i can find the average temperature of these biomes?Tundra, Tiaga, Temperate Deciduous
1. 1 answer
2. asked by Nicole
3. 694 views
2.75+.003+.158=
1. 4 answers
2. asked by Anonymous
3. 686 views
A woman throws a ball at a vertical wall 40m away the ball is 20m above the ground when it leaves woman's hand with an initial
1. 1 answer
2. asked by Tina
3. 686 views
Studying South Carolina in the 1600 to 1700s and need physical features, landforms, bodies of water and natural resources such
1. 1 answer
2. asked by Cheyenne
3. 678 views
Can you please check these thanksDirections: Moi: Donnez des réponses personnelles. 1. Tu dois boire beaucoup d'eau? Answer:
1. 1 answer
2. asked by an unknown french girl
3. 674 views
decide whether the graphs of the two equations are parallel lines:1. 2x+3y=5 9y+6x-1=0 answer: yes 2. 15+3x-10y=0 30x+24=10y
1. 3 answers
2. asked by emma green
3. 671 views
is technology a hinderance or an advantage?The lifesyle of people ten years ago is certainly different from their lifestyle now.
1. 10 answers
2. asked by Ashlynn
3. 656 views
What are the elements of the accounting environment? How do they affect the financial statements? Why are these elements
1. 2 answers
2. asked by Krysta
3. 646 views
what are nutrients?
1. 1 answer
2. asked by nadene
3. 645 views
I have to figure out how x^3+216=0 is factored, and what potential solutions might be. I factored it like this:
1. 1 answer
2. asked by Katie
3. 631 views
Find the point of intersection between y=2-(1/2)x and y=1+ax. (a=alpha sign). You answer will be a point in the xy plane whose
1. 3 answers
2. asked by SC
3. 615 views
explain how to give the measurement in centimeters of a 56 mm object
1. 2 answers
2. asked by De'Ja
3. 610 views
The acceleration of a certain rocket is given by a=bt where b is positive cnstant, find the position function Xo and Vo at t=o?
1. 1 answer
2. asked by sally
3. 605 views
The United States emitted 19.5 million t of nitrogen oxides (No) into the atmosphere in 1987. One metric to (1t) equals 1,000
1. 1 answer
2. asked by shauna
3. 600 views
Give a fact about each of the following points associatedwith a triangle: a. incenter b. circumcenter c. orthocenter d. centroid
1. 1 answer
2. asked by chandice
3. 597 views
I need to compare and contrast the ideas and pilosophies of the Federalists and Antifederalists!
1. 1 answer
2. asked by Terra
3. 597 views
can you please look this over one more time not sure if it is en la mejoriamento and is batida brutalamente correct. i am so
1. 1 answer
2. asked by sam
3. 589 views
r^2the corelation squared measures how well the y hat is than just using y bar or the other way around... I don't remeber what
1. 1 answer
2. asked by Statistics
3. 589 views
What do the Nile valley and Mesopotamian civilizations have in common?
1. 1 answer
2. asked by Shavaleir
3. 584 views
how would i begin this problem...graph the equation and identify the y-intercept. y+x=-5 I would first rewrite that into: y=x-5
1. 4 answers
2. asked by Kathy
3. 583 views
Can someone check my work?English: My cousin came over to play. We were running around the living room. My brother and cousin
1. 1 answer
2. asked by Larry
3. 581 views
Is the increased heart rate and blood pressure after exercise a feedforward or feedback mechanism?Can someone actually also
1. 1 answer
2. asked by Alex
3. 580 views
find the slope of the line containing the following points:(5/6 , -5) (-1/3, -1/3) can someone please help me I keep getting
1. 1 answer
2. asked by Kathy
3. 577 views
Whatare 3 levels that gepgraphers might study? Which one of these levels covers the largest?How might sattelite images and
1. 10 answers
2. asked by challie
3. 577 views
Suppose that when a job candidate comes to interview for a job at, say McDonald's, the probability that the candidate will want
1. 1 answer
2. asked by Sharon
3. 572 views
Mr Mike plants cabbages in a square grid so that the number of rows and columns are equal. He increased the size of his garden
1. 1 answer
2. asked by Kathryn
3. 571 views
What impact does terrorism and cyber crimes have on interpreting the fourth amendment?
1. 1 answer
2. asked by Dale
3. 567 views
A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to
1. 0 answers
2. asked by jig
3. 564 views
My son's teacher asked him to give the opposites of these words..I can't seem to think of them myself..I am sitting here
1. 2 answers
2. asked by Mari
3. 560 views

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