Friday
April 18, 2014

Posts by Ray


Total # Posts: 375

math
manuel and ruben played dominoes 24 times. Ruben has won 16 times. estimate the odds in favor of Manuel's winning the next match.

physics
Is there a way to calculate the moment of inertia of a hanging mass (3.1 kg) without length & width dimensions?

man
How to -2x+6y=-26 8x+6y=-1 6using elimination method

math
bill and jane are 1080 miles apart. They start driving towards each other at exactly the same time. Bill travels at 70 mph. Jane travels at 65 mph. How long must they drive before they meet?

Statistics
The law of large numbers tells us what happens in the long run. Like many games of chance, the numbers racket has outcomes so variable - one three-digit number wins $600 and all others win nothing - that gamblers never reach "the long run." Even after many bets, thei...

Statistics
The law of large numbers tells us what happens in the long run. Like many games of chance, the numbers racket has outcomes so variable - one three-digit number wins $600 and all others win nothing - that gamblers never reach "the long run." Even after many bets, thei...

Statistics
A class survey in a large class for first-year college students asked, "About how many minutes do you study on a typical weeknight?" The mean response of the 463 students was x = 118 minutes. Suppose that we know that the study time follows a Normal distribution with...

physics
A block with a mass of 1.0kg is lifted up slowly from ground (0m) to height of 0.51m. block is slowly displaced horizontally by .10m. find total work done to displace block vertically and horizontally. Then find total work to lift block and move it horizontally.

Math
A truck with 40-in.-diameter wheels is traveling at 50 mi/h. a) Find the angular speed of the wheels in rad/min b) How many revolutions per minute do the wheels make?

Physics
A trash can with a mass of 5 kg has a coefficient of static friction of μs = 0.80 and a coefficient of kinetic friction of μk = 0.22. (The Active Figure applies to a similar situation, but the values of the mass, coefficient of static friction and coefficient of kine...

Physics
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.70 m/s2. (a)What angle does the ramp make with respect to the horizontal? (b) If the ramp has a length of 6.40 m, how long does it take the puck to reach the bottom? (c) Now suppose the mass of the...

Physics
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.70 m/s2. What angle does the ramp make with respect to the horizontal? Please show steps...

US History
ok is there any other questions i posted you can answer?

US History
i dont have my book and i have tried looking it up on the internet but it aint answering my questions

US History
i need help on the answers i was out sick the week we did this lesson and im clueless on it

US History
i really need help with this study guide 30.) Franklin D. Roosevelt became president during the Great Depression and established the New Deal in attempts to help the country recover. The New Deal was made up of several programs that are often times nicknames the alphabet soup ...

English
1.the trip led to an argument between Helen and ____ a.I b.me 2. It was ____ who demanded an apology from the newspaper. a.we b.us 3. We appreciated ____ writing a personal letter to explain his stand on the issue. a.his b.him 4. The most outspoken critics were my sister and _...

social studies
Where can I find a good, reliable source on the internet about the Bermuda Triangle? I would like a PDF with at least a few pages and I specifically am looking for scientific explanations. Sites that end with edu or gov would be great. I have been searching the internet for ha...

English
Sorry my iPad did that by itself

English
Is it passive or active voice? Many clothes (we're given) to the homeless shelter. Passive By the end of today, the students (will have mastered) the grammar. Active My aunt Margot ( has been traveling) with her daughter. Active The cookies (have been eaten) by the guests....

pyschology
Thanks for your response, Ms.Sue. But I still Dont know how to relate that to clothing. Can you please explain a bit more?

pyschology
Define what prototype is and give four examples of prototype for the category of 'clothing' I know a prototype is a typical member of a particular category, but i Dont know what would be examples for prototype in terms of clothing... Would be it: tshirt, pants, dress?

Math
Jay can deduct the amount over 7% of his gross income as medical expenses on his income tax return. If his annual salary is $18500 and his medical expenses one year were $1450 how much could he deduct on his tax return?

physics
Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.5 kg and an initial velocity of = 8.50 m/s, due east. Object B, however, has a mass of mB...

URGENT ALGEBRA 2
well yeah but ive had this question on a past test and i dont know the answer and i keep getting it wrong can you please help me answer it correctly?

URGENT ALGEBRA 2
identify the vertex and the axis of symmetry of the graph for the function y=3(x+2)^2 a.vertex(2,-3 axis of symmetry x=2 b.vertex(-2,-3) axis of symmetry x=-2 c.vertex(2,3) axis of symmetry x=2 d.vertex(-2,3) axis of symmetry x=-2 identify the maximum or minimum value and the ...

algebra
constraints x greater than or equal to 0 y less than or equal to 8 y greater than or equal to x y greater than or equal to -1/2x+6

algebra
what is the minimum value for z=3x-1/2y over the feasibility region defined by the constraints? a.-4 b.-5 c.-3 d.-6

Math
squareroot of 8 * exponents 3

history
compare the purpose, audience, and styles of John Winthrop and Johnathan Edwards.

math
what is f(-3) if f(x)=[2x+1]+5 0 10 12 -10

math
so (2+3)(4)=2*4+3*4=6+12=18 would be a possible answer to this question?

math
Write an algebraic expression that requires each of the following properties of real numbers to simplify, in the order given: the Distributive Property, the Associative Property of Addition, the Commutative Property of Addition, and the Distributive Property. Simplify the expr...

english 11
yyay i got it right thanks so much

english 11
i got it its native american oral tradition

english 11
the statement below represents which genre from the early american and colonial period? i want to explain origins of the natural origins of the natural world and its processes.(1 point) a.the poetry of anne bradstreet b.the oral tradition of native americans c.the journals of ...

us history
when i write my thesis statement where do i put it in my paper? is it the first line of paper or what?

social studies
i have look and read over everything in my book number 3 i think i got it but the other 2 im clueless

social studies
1. Explain two ways in which sectionalism caused conflict or tension in the United States during the early 1800s. Then explain how sectionalism affects economics and politics in the United States today. 2. which was more of a priority in presindents lincolns reconstruction pla...

math
1. write the equation in slope-intercept form. what are the slope and y-intercept? -9x+10y=-9 2. what is the graph of the equation? -5x+y=-3 please help on these a.s.a.p thansk guys

Calculus (help steve)
i had trouble with this problem too

Set and relations
Help me understand: {5} is a subset {0,2,5} The way I read it is the only element in {5} is 5 and it is a member of the set {0,2,5}. I s this true?

math
looking for the pattern in these sequences: -2,-1,4,1,4,9,14,27,_,_,_,_

math
looking for the pattern in these sequences: -2,0,1,4,4,8,_ , _ , _, _, and so forth

math
A poll of 100 students was taken at a no-residential college to find out how they got to campus. The results were as follows: 28 said car pools;31 said buses;and 42 said they drove to school in their own car alone. In addition, 9 used both car pools and buses;10 said both car ...

math
Tickets to a show cost $10 for adults and $5 for children. The show was sold out, and the theatre has 500 seats. If the revenue collected from these ticket sales was $2900, how many adult tickets were sold?

physics
An eyepiece is made of two positive thin lenses, each of focal length f = 20 mm, separated by a distance of 16 mm. (a) Where must a small object viewed by the eyepiece be placed so that the eye receives parallel light from the eyepiece? (b) Does the eye see an erect image rela...

optics
A thin, double-convex lens has a refractive index of 1.50. The radius of curvature of the front surface is 15 cm and that of the rear surface is 10 cm. See sketch. (a) How far from the lens would an image of the sun be formed? (b) How far from the lens would an image of a toy ...

chem word problem
.If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant, what final pressure would result if the original pressure was 750.0 mm Hg? Round to the nearest tenth. Don't forget the units. what should i plug in?

economics
true

CALCULUS
Lim x->4 (x^2+3x+4)/5x-12

CALCULUS
Lim x->4 (x^2+3x+4)/5x-12

CALCULUS
lim x->2 f(x) where f(x) = { x^2-x-2/ 3x-6 , x<2 } {-1 , x=2 } {x+2/4 , x>2} is f(x) continuous at x = 2 ? explain..

MATH
Solve the differential equations? (calculus) a) square root cotany/ (1+x^2)sin^5y dy/dx = e^x^3 +3x/ square root cotany b) y^2/cosx dy = e^sinx/ e^y^3-1 dx

Chem
Citric acid (H3C6H5O7) is triprotic acid which reacts with NaOH according to the balanced chemical equation shown below what volume of 0.200m Naoh is required to titrate 7.50ml of lemon juice which is 0.245 m in citric acid? H3C6H5O7+3NaOH->Na3C6H5aO7+ 3H2O

Chem
Thanks!!!

Chem
A mixture of He Ne and 3rd gas exhibit a total pressure of 486 mm hg if the partial pressure of He125mm mm hg and partial pressure of Ne is 214mm hg what is the mole fraction of the 3rd gas in container

Chemistry
Calculate the heat released when 454 g of steam at 100.0C condenses and then cools to 30.0C. State your answer in calories.

chemistry
The pH of a .10M HOBr solution is 4.8 1. What is [H+] in that solution? 2. What is [OBr-]? What is [HOBr]? (where do the H+ and OBr ions come from?) 3. what is the value of Ka for HOBr? what is the value for pKa?

physics
A battery with an emf of 14.5 V and internal resistance of 0.83 Ω is connected across a load resistor R. If the current in the circuit is 0.81 A, what is the value of R?

edu
ok thank you all for your help i really appreciate it

edu
because i wanted to be sure of my answers

edu
my text says Use mentalinguistic strategies to talk explicitly about the concept of prints: "This first page is the beginning of the book." "Let's turn to the next page." "This page has lots of words in it." "Who can guess what the words ...

edu
Emergent literacy skills are enhanced by a.quantity and quality of print and audio-visual resources b. the family socio-economic status and aspirations c.engaging in literacy event with other persons especially adults d. the educational or professional level of one or both par...

geography
hurricanes and cyclones originate: a.in the tropics b.in temperate latitudes c.near the poles d.in the center of large land masses Is the answer a?

physics
A hypodermic syringe is attached to a needle that has an internal radius of 0.303 mm and a length of 3.02 cm. The needle is filled with a solution of viscosity 2.00 10-3 Pa · s; it is injected into a vein at a gauge pressure of 16.1 mm Hg. Ignore the extra pressure requ...

physics
At the surface of a freshwater lake the pressure is 102 kPa. (a) What is the pressure increase in going 34.7 m below the surface? b) What is the approximate pressure decrease in going 33 m above the surface? Air at 20° C has density of 1.2 kg/m3.

edu
By text states what i posted above. I am just willing to understand why the answer is C because i was leaning toward B

edu
The middle-class preference for relatively small nuclear families consisting of mother, father,(or a single mother),and two or three children, is unusual when compared with families from most other non-European backgrounds. Most cultures include maternal or paternal grandparen...

edu
that really doesn't say much

edu
Which of these scenarios best describes a nuclear family? A) Jeremiah is growing up within a cluster of adults and children who maintain their own living quarters but come together for work and meals. Child-rearing is a shared responsibility. B) The Farrish family is comprised...

edu
I would go with B

edu
yes i read a little in the text

edu
A 1992 finding by researchers Dickinson et al. about the language prompts used by low-income caregivers revealed a need for training in: A. approaches for eliciting more referential language and labels. B. expanding question formats to obtain a child's elaborations and pre...

edu
ok thank you for your help

edu
A parent from a non-mainstream culture complains to the program director that her son is being negatively singled out by his teacher. The director would do well, as a first step, to address the complaint by: a. backing the teacher's position and action b. setting a meeting...

edu
Which statements best express the strategy of semantic extension? a. The teacher uses redundancy to teach new vocabulary b. A mother says the same word twice in succession when speaking to her child c. Semantic extension involves the repetition of words & sentences, recasting ...

edu
7.Which one of the following conditions Fails to foster good communicative interaction in an early learning setting? a. The teacher repeats every thing a child says, but in the proper English form. b. At least during the time the child is in the early care environment, the tea...

edu..help ms sue
yea

edu..help ms sue
i was saying the same thing. this question makes no sense

edu..help ms sue
A young Asian child would probably be less inclined to engage in backchanneling than a middle-class American child does because: a.he or she incorporates both verbal and nonverbal responses b.middle-class children are taught and expected not to engage in backchanneling c.non-m...

edu/diversity
Or B. for the second question..I'd go with B.

edu/diversity
With growing concern and intake of information , a child may not be able to put new details into former mental bins and concept groups. When this occurs, a search for_____is stimulated a. coherence b. rules c. consonance d. definition Would A be appropriate Which one of the fo...

cultural diversity
Child-rearing practices in which children are expected to sleep alone, toddlers are epected to self-feed, and preschoolers are encouraged to compete and/or do their best are likely to be contrary to beliefs and practices held by parents and guardians who belong to a/an: A. Ame...

cultural diversity
Linda Arriaga teaches at The Young Wonders Preschool. Which one of the following elements is likely to play the most prominent role in the school's child-centered philosophy and mission statement? A. Collaboration between teachers/staff and families B. Family participation...

Math-Algebra
10log(5x + 40) = 10

Math-Algebra
1) log(9 – x) – log(6 + x) = 1 2) e^2x + e^2x = 1 3) 2e^6x + e^6x = b

college algebra
please help me solve this equation x-1/3x-1/2x-5=0

english
Humpty Dumpty" tells the story about an egg that fell off a wall and broke. "Humpty Dumpty" is a __ poem. A.narrative B.free verse C.limerick D.nonsense Is it a narrative(a)

edu
Ms Sanchez is selecting a picture book to share with her two year olds. She will try to select a book with: a.few pictures so the story is lessened d. detail messages c.simple drawings d.fantasy type illustrations I think d not sure

edu
Which one of the following would NOT be a typical communication for a three year old ? a."Thats Scary b."I'm hungry c."Nobody likes carrots d.I wan cookies I think c not sure though

edu
Ms. Rook chose to develop her theme of life cycles around The Very Hungry Caterpillar by Eric Carle. She is using a.a thematic inquiry approach b.webbing c.a thematic/literature based approach d.a whole language learning Not sure between b and c i think c

help please english
what is a word that is in the ip family that means a baby bird. I have no clue need help

Maths
find range for g(X)= -cos4x

math
how much is 1/4 of 8 pies

Physics
The parachute on a race car of weight 8,810 N opens at the end of a quarter-mile run when the car is traveling at 34 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1,100 m?

edu
When a child is transitioning into your classroom, it is best for the child's first visit to take place: a.in the morning when the other children are arriving b.when other children in your class are on the playground c.during your circle time, so the child can meet all his...

edu
a teacher can be affectionate and still regard a child with objectivity,which is not possible for a parent. According to Katz this ____ is what distinguishes between mothering and teaching. a. scope of responsibility b. ambivalent attachment c. intensity of affect d. detached ...

health
the food group pyramid presents daily recommendations for: a.kind and amount of food to eat each day b.minimum amounts of nutrients needed c.amounts of each nutrient to consume daily d.maximum safe nutrient intakes Is it a? I am not sure

HELPPPP
business

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