Friday
April 18, 2014

Posts by Jay


Total # Posts: 1,019

u,s history
By the end of April 1975, which city fell to the North Vietnamese Army, leading to the unification of Vietnam?

math
If the consumption function is C = $200 billion + 0.6Y, (a) How much do consumers spend with incomes of $8.25 trillion? I got 5.2 trillion for this. (b) How much do they save? ??

math
(b) Round to nearest two decimal places.

math
Suppose you borrow $1,000 of principal that must be repaid at the end of two years, along with interest of 5 percent a year. If the annual inflation rate turns out to be 10 percent, (a) What is the real rate of interest on the loan? For this I got -5%. (b) What is the real val...

Math
A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?

statistics
If there are 18 blue socks and 24 black socks what is the probability of pulling out 2 black socks?

Math - Quadratics & Analytical Geometry
I have a test tomorrow with a few sample questions that are expected to be on the test that I do not know how to properly do. 1)Find the slope intercept equation of the line passing through the intersection of the lines 2x-4y=1 & 3x+4y=4 and parallel to the line 5x+7y+3=0 2)Fi...

math
Nice! Thank You

math
B(0,5) F(0,3) G(30,3) C(30,5) Find the area, Area BFGC =

Science
I would say gas. A gas moves around freely and has lots of energy.

Chemistry
The net reaction for fusion on a star like our Sun is: 4H(1,1) ==> He(4,2) + 2e(0,+1) Calculate the mass defect for this reaction. If one atom of He is formed this way, calculate the energy released. If one Kg of He is formed, calculate the energy released. The masses of th...

cal
Finding Partial Derivatives Implicitly. Find dz/dx and dz/dy for 3x^(2)z-x^(2)y^(2)+2z^(3)+3yz-5=0 How would you type this in wolfram alpha calcultor to get the answer? Thanks,

grammar
special nouns are abstract nouns like names of qualities,emotions or ideas

Chem
if 0.25L of gas is placed in a container at 500K and 104 kPa and the temp is increased to 750K and the pressure is increased to 120kPa what is the new volume of the gas

basic excel
Write one Microsoft excel formula that works for conditions below on cell C1 for any number: a) IF A1+B1<=4, return $20 b) IF A1+B1>4 but <=9, return $35 c) IF A1+b1>9 but <=14, return $50 d) And IF A1+B1>15, return $75

Algebra
Two positive numbers differ by 11. When the larger number is divided by the smaller, the quotient is 2 and the remainder is 4. what are the numbers

phys
An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/s^2 west for 3 seconds. During this time the object travels a distance of:

Math
Find Curvature, find the curvature k of the curve, where s is the arc length parameter. r(s)=(3+s)i+j

math vector
Find the Principal unit normal vector to the curve at the specified value of the parameter. r(t)=ti+t^(2)j+lntk, t=1

math vector
r(t)=〈 2 sin t, 2 cos t, 4 sin^(2) t 〉 at the point (1, sqrt(3),1) For this it is t=pi/6 to (1,sqrt(3),1). Can you show me how it is t=pi/6?

math vector
How do you know that t=0 at (0,0,0)? How do you find it?

math vector
Find the unit tangent vector T(t) and find a set of parametric equations for the line tangent to the space curve at point P. r(t)=ti+t^(2)j+tk, P(0,0,0)

math vectors
Find the angle between two vectors. In radians and in degrees. u=<1,0,-3>, v=<2,-2,1> I got radians = 1.676 degrees = 96

Science
b

EASY Volume of shapes
thanks for the help

EASY Volume of shapes
The right triangular prism has bases that are equilateral triangles. The height is 8 in and the side of the base is 5 in , what is the prism's volume?

business math
Weekly pay: $253.07 Not married Exemptions: 3 What is the federal tax? $19

Math
A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1250 miles, for a total gas consumption of 35 gallons....

Math
A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1250 miles, for a total gas consumption of 35 gallons...

Math
The sum of two numbers is 53 . The larger number is 13 more than the smaller number. What are the numbers?

Math
Can you simplify a4 b + a2b3 please thank you.

World History
Nevermind, I got it :)

World History
Someone help me, please!

World History
What factors spurred the technological development during Western Europe in 1500-1750? Are there particular conditions that favor technological innovation?

math
4+5 times 6/2

us history
Thank you very much Ms. Sue for your help. =)

us history
African American troops in the Union army: A.were from the begining an itergral part of mnay fighting units. B.distinguished themeselves in battles in Louisiana. C. None of these I read first. And I came up with B. is this right.

us history
C.

us history
ALL the following accurately characterize the advantages of the North and South EXCEPT: a. The Union had far greater industrial capacity, more railroads and more ships. b. The South had far more usable food supplies than did the Union. c. The Union had four times more white re...

us history
Manassas

us history
The first major battle of the civil war took place at Vicksburg Manassas Antietam Shenandoah I chose Antietam. Right

Philosophy
The view that knowledge is impossible is: A. Rationalism B. Empiricism C. Skepticism D. Constructivism E. Cognitivism

ENG
What are two strategies for incorporating meaningful dialogue in the learning process of the online classroom?

physic
Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is Suzie’s average acceleration? Answer in units of...

physics
Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is Suzie’s average acceleration?

science
Hans stands at the rim of the grand canyon and yodels down to the bottom. He hears his yodel echo back from the canyon floor 5.20 seconds later. Assume that the speed of sound in air is 340.0m per second. How deep is the canyon? Hint: Note that the time is for the sound to tra...

Algebra 8th
1a

Economics
The market equilibrium price for coffee beans in Ecuador is $2.75/pound, a price at which growers are unable to make a profit. Due to the lack of profits, many growers have stopped production and the output of coffee beans has fallen from 400 tons per year (capacity for the re...

history
Does Cortes' letter point out any possible problems with the use of primary source documents? Based upon the text, what are some examples of possible problems? Which is more reliable, a primary source or a secondary text?

Chemistry
A calorimeter contains 50.0 mL of water; both are at 21.2 degrees C. Then the 50.0 mL of water at 57.6 degrees C is added to the calorimeter. At equilibrium, the final temperature of the water and the calorimeter is 33.3 degrees C. Calculate the heat capacity, C, of the calori...

Chemistry
the density of Fe2O3 is 5.343g cc. What is the mass volume concentration of iron in Fe2O3

Physics
A 92 kg disk, with a radius of 0.97 meters, is rotating at 562 rpm. What is its angular momentum, to the nearest tenth of a Joule*sec?

physics
A pilot flying low and slow drops a weight; it takes 3.2s to hit the ground, during which it travels a horizontal distance of 155m . Now the pilot does a run at the same height but twice the speed. How much time does it take the weight to hit the ground?

Chemistry
one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.31kg of magnesium. How much fluorine (in grams) did the second sample produce?

Physics
An unstretched spring with spring constant 37 N/cm is suspended from the ceiling. A 3.3 kg mass is attached to the spring and let fall. To the nearest tenth of a centimeter, how far does it stretch the spring?

math
It's recommended that a person drink six 8-ounce glasses of water a day. Which expression shows how many ounces of water a person should drink over a 5-day period?

Math
Gregory filled a tank with 4 1/2 gallons of water. Linda filled the same tank with anothewr 2 1/3 gallons of water. finally, Meg added another 2 gallons of water. How many gallons of water were added to the tank?

Physics
Just as a car tops a 47 meter high hill with a speed of 36 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?

Algebra
b,c,c

physics
Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 5.16 m. The stones are thrown with the same speed of 8.67 m/s. Find the location (above the base of the clif...

Physics
A pendulum has a mass of 3.2 kg, a length of 2 meters and swings through a (half)arc of 28.1 degrees. What is its amplitude to the nearest centimeter?

Physics
A 45 kg child sits on a 5 kg sled and slides down a 117 meter, 31 degree slope, to the nearest m/s what is his or her speed at the bottom?

Physics
A 45 kg child sits on a 5 kg sled and slides down a 117 meter, 31 degree slope, to the nearest m/s what is his or her speed at the bottom?

Physics
You have a mass of 69 kg and are on a 47 degree slope hanging on to a cord with a breaking strength of 160 newtons. What must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved from the fire?

math 3
Billy wanted to write a ratio of the number of police cars in the parking lot. there were 3 police cars and one truck he wrote 1:3 did he write it correctly explain your answer? I think it should be 3:1 because there are more police cars then there are trucks not sure if this ...

Politics
Which one of the following budget items would probably be considered a fixed expense?

economics
You are the manager of a firm that receives revenues of $40,000 per year from product X and $90,000 per year from product Y. The own price elasticity of demand for product X is -1.5, and the cross-price elasticity of demand between product Y and X is -1.8. How much will your f...

econ
Assume Felix is willing to par $8 for a Star Trek pizza cutter. Tim also wants one but would only be willing to pay $6 for it. At a Star Trek convention,Felix manages to buy the last pizza cutter at the market price. In a strange twist of fate, however, the Star Trek fan club ...

macroeconomics
Assume Felix is willing to par $8 for a Star Trek pizza cutter. Tim also wants one but would only be willing to pay $6 for it. At a Star Trek convention,Felix manages to buy the last pizza cutter at the market price. In a strange twist of fate, however, the Star Trek fan club ...

Math
The sum of two numbers is 53 . The larger number is 13 more than the smaller number. What are the numbers?

math
how is multiplying integers is like multiplying whole number?

Physics
Two cars lost in a blinding rainstorm are traveling across a large field, each thinking they are on the road. They collide. If the distance between them is 174 meters and the red car is traveling at 6 mph at a 45 degree angle toward the impact point, and the blue car is travel...

math
Explain how it is possible to subtract a number from 100 and get a result that is greater than 100.

math
Explain how it is possible to subtract a number from 100 and get a result that is greater than 100.

Physics
A ball is thrown from a cliff upward with a speed of 27 m/s and at an angle of 71 degrees to the horizontal. How high does it go above the cliff to the nearest tenth of a meter? answer is 33.3. I am using 27sin71.

Physics
Thank you

Physics
the answer to the question is 58 why is it not matching up?

Physics
A baseball is thrown off a cliff at an angle of 57 degrees with a speed of 25 m/s. How high is the cliff to the nearest tenth of a meter, if the ball hits the ground 6.2 sec later.

Achieving Academic Excellence
when proiritzing your study period, the best strategy is to?

Physics
A car accelerates at a constant rate from zero to 29.3 m/s in 10 seconds and then slows to 20 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds? Answer is 1.3....not sure how to get to it. I am using the formula a= (V sub2...

Physics
How are you factoring out the t and t^2?

Physics
A speeder traveling at 36 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 2.54 m/s^2. To the nearest tenth of a second how long does it take the policeman to catch the speeder?

Physics
@ Steve. The answer to the question is 0.7m/s^2

Physics
A car accelerates at a constant rate from zero to 23.3 m/s in 10 seconds and then slows to 15 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s^2 during the 15 seconds?

Physics
A car traveling at 11m/s accelerates to 2.82m/s^2 for 13 seconds how far does the car travel?

physics
constant gamma(Y) for the oxygen as well as for hydrogen is 1.40. If the speed of the oxygen is 460 m/s, what will be the speed of the sound in hydrogen at same temperature and pressure

math
please explain in deatail- a tube has a outside diameter of 2" and wall thickness of 3/16". what is the inside diameter?

Psychology
How can we enhance our knowledge of adult development?

Psychology
what are some strategies that you can suggest for adults to age successfully?

Psychology
Assume that an individual engages in behaviors that are in conflict with their stated religious beliefs, and they experience dissonance. What impact might this have on their beliefs? What might allow people to productively resolve that dissonance?

Psychology
Describe three important functions of the self. Give examples of each.

PSY 369
Studies have shown that in large American cities, there is a relationship between the number of violent crimes and the number of stores that sell pornography depicting violence. Is this a positive or negative correlation? Provide an explanation.

Psychology
Studies have shown that the longer children had lived in an orphanage the lower their IQ scores are. Is this a positive or negative correlation? Provide an explanation.

PSY 369
Studies have shown that the longer people are married the more similar their political and social views become. Is this a positive or negative correlation? Provide an explanation.

math
0.4 points

PSY 369
Explain two major differences between common sense understandings and social psychological theories. Illustrate with an example. What is the danger in relying on common sense or intuition in learning about the relationship between the individual and his or her environment?

algebra
6x1 inches 7x-3 inches =square inches

algebra
Multipling polynomials: 3x+5yards +3x-5 yards

SOC - 322
Can you please describe the array of housing options available to the older adult population; including CCRCs, skilled nursing facilities, active adult communities, shared housing, residential care facilities, and assisted living/residential care apartments.

SOC - 322
Some individuals in this community are economically vulnerable, while others are financially stable. Can you please discuss the financial equities that exist in the older adult population. Thank You,

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