Saturday
August 30, 2014

# Posts by Ryan

Total # Posts: 888

math
What is the slope of the budget line from trading with Friday (coconuts for fish)?
August 24, 2014

calculus 2
use the simpsons rule with n=10, arc length y=^3sqaure root x, for 1<=x<6
July 29, 2014

calc 2
find the maclaurin series for: f(x) = (1-3x)^-5. What is the radius of convergence?
July 27, 2014

Physics (HEELPPP)
A coin with a diameter of 1.90 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 14.4 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular acceleration of magnitude 1.88 rad/s2, how far ...
June 27, 2014

chemistry
At a certain temperature, Keq is 4.13 x 10^-5 for the equilibrium: 2IBr(g) ↔ I2(g) + Br2(g) Assume that the equilibrium is established at the above temperature by adding only the reactant to the reaction flask. What are the concentrations of I2 and Br2 in equilibrium ...
June 5, 2014

Global history
Compare and contrast European colonization of the Americas in the 16th and 17th centuries with European colonization of Africa and Asia in the 18th and 19th centuries. Be sure to address the motives for colonization and the impact that colonization had on native peoples. (Just...
May 28, 2014

Math
I think your answer looks fine. We are doing this in my school as well. The question is rather open for personal opinion, so as long as you can back it up, it is fine. Sorry if this does not help
May 28, 2014

Physics
an electron is sitting 10cm away from a small object -5nc it is let go and moves away from the charged object when it reaches a distance of 15 cm away find its speed
May 26, 2014

geometry
if a cone is 7.5 cm high and has a vertical angle of 70 degree calculate the diameter of its base.
May 16, 2014

Logic
Even if you know only some of them please help! 1. Give a proof of the following: (∀F)( (P)( [ιxGx][Px] ⊃ F(P) ) ⊃ F(G)) (∃F)( (P)( F(P) ≡ [ιxGx][Px]) Therefore, E!(ιxGx) 2. Prove the following: [ιxMx][Thales believed that Bx...
May 14, 2014

Trigonometry
Two radar stations are 50 miles apart. Both are tracking the same plane. At this moment, the angle between station 1 and the plane is 73 degrees and the angle between station 2 and the plane is 46 degrees. How far is the plane from station 2?
May 6, 2014

physics
Sunlight strikes the surface of a lake at an angle of incidence of 44.5°. At what angle with respect to the normal would a fish see the Sun?
May 4, 2014

physics
How would a diamond look if there were no dispersion?
May 4, 2014

physics
Question Part Points Submissions Used 1 2 3 4 0/0.37 0/0.37 –/0.37 –/0.37 4/15 1/15 0/15 0/15 Total 0/1.48 ...A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 46.05°. Inside the diamond, red light (ë = 660...
May 4, 2014

physics
A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 46.05°. Inside the diamond, red light (ë = 660.00 nm in vacuum) is refracted at 17.38° with respect to the normal; blue light (ë = 470.00 nm in vacuum) is ...
May 4, 2014

physics
Sunlight strikes the surface of a lake at an angle of incidence of 44.5°. At what angle with respect to the normal would a fish see the Sun?
May 4, 2014

Economics
Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the alternate hypothesis? H1...
April 27, 2014

Statistics
The claim that "38% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available," is to be investigated at the 0.02 level of risk. If 86 out of the 200 workers sampled said they would return to work, ...
April 27, 2014

Statistics
An accelerated life test on a large number of type-D alkaline batteries revealed that the mean life for a particular use before they failed is 19.0 hours. The distribution of the lives approximated a normal distribution. The standard deviation of the distribution was 1.2 hours...
April 11, 2014

Statistics
You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability= ? My answer is 0.301 3 decimal ...
April 5, 2014

Statistics
A survey of top executives revealed that 37% of them regularly read Time magazine, 21% read Newsweek and 38% read U.S. News & World Report. Eleven percent read both Time and U.S. News & World Report. What is the probability that a particular top executive reads either Time or ...
April 4, 2014

Statistics
You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability=
April 4, 2014

Statistics
A survey of top executives revealed that 37% of them regularly read Time magazine, 21% read Newsweek and 38% read U.S. News & World Report. Eleven percent read both Time and U.S. News & World Report. What is the probability that a particular top executive reads either Time or ...
April 4, 2014

Statistics
Thank you
April 4, 2014

Statistics
The National Center for Health Statistics reported that of every 894 deaths in recent years, 25 resulted from an automobile accident, 185 from cancer and 309 from heart disease. What is the probability that a particular death is due to an automobile accident? 25/309 or 0.081 ...
April 4, 2014

Chemistry
Complete ionic equation and net ionic equation for 2 K3PO4 + 3 Fe(NO3)2 --> 6 KNO3 + Fe3(PO4)2
March 26, 2014

Chemistry
CIE and NIE for 2 K3PO4 + 3 Fe(NO3)2 --> 6 KNO3 + Fe3(PO4)2
March 26, 2014

CHemistry
SO2(g) + H2O(l)= H2SO(l) What mass of sulfur dioxide is needed to prepare 36.86 g of H2SO3(l)
March 26, 2014

Chemistry
CIE and NIE for 2 K3PO4 + 3 Fe(NO3)2 = 6 KNO3 + Fe3(PO4)2
March 26, 2014

physics
How long will it take a watch dropped from a bridge (20.3 meters above the water) to hit the water?
March 26, 2014

grammar
Thank you Writeacher
March 18, 2014

grammar
In The Space Before Each of the Following items, place a C if the capitalization is correct, a zero (0) if it is incorrect. Then insert capitals where should be, and draw a line through capitals that should be small letters. 1.the Rocky Mountains i got C 2.my spanish course i ...
March 18, 2014

Find the area between the curves y= x^2/2 +2 and y = –x – 3 on the interval –4 ≤ x ≤ 4. I got 40/3 is that correct?
March 11, 2014

Calculas
Find the area of the region under the curve y = 12 e ^{3 x} between x = -2.6 to x =2.6
March 8, 2014

Calculas
The slope of the tangent line to the graph of a function, h(t) is 7/2t The function passes through the point (5,3) Find h(4)
March 2, 2014

IT
Write a program that asks for the name of the employee, an hourly pay rate and hours worked. Compute gross pay (hours X rate), withholding tax, and net pay (gross pay minus withholding tax). Withholding tax is computed as a percentage of gross pay based on the following: Gross...
February 23, 2014

physics
Drag-race tires in contact with an asphalt surface have a very high coefficient of static fric.tion. Assuming a constant acceleration and no slipping of tires, estimate the coefficient of static friction needed for a drag racer to cover 2.1 km in 8 s, starting from rest. ...
February 21, 2014

physics
A person stands on a bathroom scale on a motionless elevator. When the elevator begins to move, the scale briefly reads 200 percent of the person's regular weight. Calculate the acceleration of the elevator, a_{elevator}. Use SI units
February 21, 2014

You have a glass of juice in front of you, and you drink 1/6 of it. Then you pour as much water into the glass as you drank of the juice. Your drink 1/3 of this mixture and again you pour as much water into the glass as you drank of the mixture. Now you drink 1/2 of the ...
February 19, 2014

calculas
Consider the function f(x) = 7 xe^{-7.5 x}, 0<_x<_2. This function has an absolute minimum value equal to: which is attained at x=
February 19, 2014

calculas
A landowner wants to fence in a rectangular area of 60000 square metres and divide it into three parts with two parallel fences both parallel to one side of the rectangle. Each part will have a different grazing crop for the herds. What is the shortest total length of fence ...
February 19, 2014

Physics
Your potato gun has a muzzle velocity of 34 m/s. You want to shoot a potato and have it strike the ground 2.4 seconds later. At what elevation do you have to fire the gun?
February 15, 2014

physics
thanks henry..... dont know why i didnt see that earlier
February 15, 2014

Health
10. Which of the following sentences should not be used in "I" messages? (Choose 2) A) You make me feel humiliated when you criticize me. B)It's hard for me to think clearly when you are singing. C)I would like us to leave on time in the future. D)I do not like ...
February 15, 2014

social studies
bill of rights which carefully listed and defined rights
February 12, 2014

Physics
An object moving along a horizontal track collides with and compresses a light spring (which obeys Hooke's Law) located at the end of the track. The spring constant is 38.6 N/m, the mass of the object 0.270 kg and the speed of the object is 1.20 m/s immediately before the ...
February 11, 2014

Physics
At a given temperature O2 molecules will move (3/2)1/2 faster than O3 molecules on the average. True or False? I'm not sure if it is true or false on this one, but I think its false. If you mix a gas, eventually all the molecules have the same kinetic energy on the average...
February 4, 2014

Chemistry
At 1 atm, how much energy is required to heat 35.0 g of H2O(s) at –12.0 °C to H2O(g) at 127.0 °C?
February 2, 2014

CHemistry
At 1 atm, how much energy is required to heat 35.0 g of H2O(s) at –12.0 °C to H2O(g) at 127.0 °C?
February 2, 2014

Math
None especially from Steve!
January 26, 2014

Math
Suppose Meagan needs to drive the truck 10 miles to her new home. a) What is the cost of using Truck A? b) What is the cost of using Truck B? c) Which company offers the better deal at this mileage? 2. Suppose Meagan needs to dive the truck 30 miles to her new home. a) What is...
January 26, 2014

A car travels around a circular turn of radius 50 meters while maintaining a constant speed of 15 m/s. Find the minimum value for the coefficient of friction necessary to keep the car on the road. I got .40 for the minimum value of friction. In icy conditions, the coefficient ...
January 11, 2014

Ill be concise:60% of people in survey had income greater than 25k, 40% under 25k. Further, same survey, 70% have exactly 2 cars, while 30% have a different number than 2. The probability that the residents own 2 cars IF income is over 25k is 80%. what is the probability of a ...
December 9, 2013

Ill be concise:60% of people in survey had income greater than 25k, 40% under 25k. Further, same survey, 70% have exactly 2 cars, while 30% have a different number than 2. The probability that the residents own 2 cars IF income is over 25k is 80%. what is the probability of a ...
December 8, 2013

math
Lucy earns \$326.87 each week. The federal government withholds 18% of that for federal income tax. How much is withheld from her pay annually for federal income tax?
November 26, 2013

Calculus
Find the point on the line -6 x + 5 y - 1 =0 which is closest to the point ( -4, 1 )
November 23, 2013

Calculus Help!!!
Find c > 0 such that the area of the region enclosed by the parabolas y=x^2-c^2 and y=c^2-x^2 is 13.
November 21, 2013

accounting
Harry and Sally were divorced three years ago. In July of the current year, their son, Joe, broke his arm falling out of a tree. Joe lives with Sally and Sally claims him as a dependent on her tax return. Harry paid for the medical expenses related to Joe’s injury. Can ...
November 18, 2013

Science
How many grams are in 3CuCl2
November 7, 2013

Science
How many grams are in 3CuCl2
November 7, 2013

physics
A thermal neutron beam of intensity 1 to the power 11, neutrons/sec is directed for 2 days into a cavity in a block of cobalt initially composed entirely of the stable isotope Cobalt 59. The neutrons are all captured, producing cobalt 60 nuclei which are radioactive with a ...
November 2, 2013

physics
A nuclear reactor for producing neutron beams is refuelled with about 10 kg of uranium, which contains initially 90% of the fissile isotope 235U. The reactor operates continuously at a constant thermal power of 57 MW until the quantity of 235U is reduced by 30%, at which point...
October 29, 2013

Physics
A nuclear reactor for producing neutron beams is refuelled with about 10 kg of uranium, which contains initially 90% of the fissile isotope 235U. The reactor operates continuously at a constant thermal power of 57 MW until the quantity of 235U is reduced by 30%, at which point...
October 28, 2013

Physics
A car is driving along at 16 m/s, and the rain is falling at 6 m/s straight down. What angle θ (in degrees) does the rain make with respect to the horizontal as observed by the driver?
October 27, 2013

Chemistry
MnO4 + (C2O4)2 = MnO2 + 2(CO3)2
October 27, 2013

Statistics
The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. -The probability that a bag of corn chips weighs more than 21 ounces is? -The probability that a bag of corn chips weighs between 20.75 and 23.25 ounces is?
October 27, 2013

Physics
A cart of mass m1 = 12 kg slides down a frictionless ramp and is made to collide with a second cart of mass m2 = 21 kg, which then heads into a vertical loop of radius 0.26 m, but the carts stick together after the collision.Find the height h from which cart 1 would need to ...
October 13, 2013

Physics
A cart of mass m1 = 12 kg slides down a frictionless ramp and is made to collide with a second cart of mass m2 = 19 kg, which then heads into a vertical loop of radius 0.23 m. Determine the height h from which cart 1 would need to start to make sure that cart 2 completes the ...
October 13, 2013

Physics
A vintage sports car accelerates down a slope of θ = 16.6°. The driver notices that the strings of the fuzzy dice hanging from his rear-view mirror are perpendicular with respect to the roof of the car. What is the acceleration of the car?
October 13, 2013

Organic Chemistry
What reagents will separate, isolate, and purify 50% phenanthrene, 40% methyl 4-aminobenzoate, and 10% 1,4-dibromobenzene? The reagents to chose from are: 1 M naoh, 6 M naoh, 1 M hcl, 6 M hcl, 1 M nahco3, saturated sodium chloride, diethyl ether, 95% ethanol, methanol, ...
October 1, 2013

math
Did you mean: ryan has nine 14 ounce bags of popcorn to repackage and sell at the school fair. a small bag holds 3 ounces. how many small bags can he make?
September 18, 2013

physics
A jogger follows this route every morning. Assume each segment is a straight line. A= 1000m due south B= 500m at 53 degrees east of south C= 400m due east What is the jogger's displacement from start to end including magnitude and direction?
September 9, 2013

statistics
A machine is designed to fill jars with 16 ounces of coffee. A consumer suspects that the machine is not filling the jars completely. A sample of 8 jars has a mean of 15.6 ounces and a standard deviation of 0.3 ounce. Is there enough evidence to support the consumer's ...
August 2, 2013

eth/125
Thank you
July 21, 2013

eth/125
Which of the following types of people would be unlikey ro do much to change themselves? A. The fair wheather liberal b.the all wheather liberal c.the timid bigot d.all of these
July 21, 2013

Physics
A 170 kg astronaut (including space suit) acquires a speed of 2.75 m/s by pushing off with his legs from a 2400 kg space capsule. What is the average change in speed in meters/second of the space capsule?
July 12, 2013

Statistics
In the Federal Trade Commission (FTC) \Price Check" study of electronic checkout scanners, the FTC inspected 1,669 scanners at retail stores and supermarkets by scanning a sample of items at each store and determining if the scanned price was accurate. The FTC gives a ...
July 8, 2013

Calculus Help
I have looked high and low to figure out how to start this question. I have no clue! Any help would be great!! Rainbows are formed when light strikes raindrops and is reflected and refracted. The Law of Refraction states that (sin alpha)/(sin beta) = k, where k equals 1.33 (...
June 30, 2013

math
Solve: f(x)=7x^6=1
June 25, 2013

Programming Logic
How do I write case logic pseudocode and visual logic nested if-then-else flow charts for atm check balances, making remote photo capture check deposits, and perform balance transfers?
May 14, 2013

Symbolic Logic
Were you ever able to find answers to this question? I am also struggling.
May 12, 2013

Calulus
Use the Midpoint Rule with n =3 to approximate the integral ç−1−8(10x−9x2)dx
May 12, 2013

calc
15. Given ensuing information, determine the least cost and the least cost mix of on- and off-shore pipe. • • • • The intake facility is in the water 2 miles vertically north of the shoreline The water filtration plant is on land 1 mile vertically south of ...
May 8, 2013

math
Three forces act on a hockey pick as it slides across the ice; the normal force N represents the force the ice exerts upward on the puck and is given by N= <0,0,100>, the gravitational force G represents the downward force of gravity on the puck and is given by G = <0...
May 6, 2013

algebra 1
Given the data, you should get a piece of graph paper (or use excel or some other graphing program) and plot the points with time on the x-axis and temperature on the y-axis. You will probably get a graph that looks something like this...
May 1, 2013

science
Which ore could produce a metal you would like to wear? Why?
April 30, 2013

Calculus
Consider the function f(x)=4(x−3^2/3. For this function there are two important intervals: (−‡,A) and (A,‡) where A is a critical number. Find A
April 28, 2013

algebra1
solve the following system of equations by first rearranging them so that they are not in fractional form: 3/(x+2) -2/(x+3)=7y/(3x^2+15x+18) 4(y+3) +1/(y+1)= 11x/(Y^2+4y+3) oh please help oh please my math teach will funk me if i dont get these problem porrect.
April 25, 2013

algebra1
solve the following system of equations by first rearranging them so that they are not in fractional form: 3/(x+2) -2/(x+3)=7y/(3x^2+15x+18) 4(y+3) +1/(y+1)= 11x/(Y^2+4y+3)
April 25, 2013

algebra1
the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 1000 copies,so she uses both machines.how long will it take to have the copies
April 25, 2013

Math
Adam wants to compare the fractions 2/5, 1/6, and 1/3. He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrite the fraction.
April 24, 2013

math
The median score on a test is 90. Is it possible to add two more scores to the data and still have a median score of 90? Explain your answer.
April 23, 2013

Aviation structures
during landing the leg is subjected to a vertical load of 10,000N, and a drag load 3000N,
April 22, 2013

How many times larger is a cube than a pyramid with the same base?
April 17, 2013

How many times larger is a cube than a pyramid with the same base?
April 17, 2013

Chemistry
An unknown amount of gas occupies 30.0 L at 2.1 atm and 298K. How many moles does the sample contain? What is the mass if the gas is helium? What is the mass if the gas is argon?
April 12, 2013

Chemistry
If N2 is added to a balloon that contains O2 (partial pressure 450 mm Hg) and CO2 (partial pressure 150 mm Hg) to give a total pressure of 850 mm Hg, what is the partial pressure of each gas in the final mixture?
April 12, 2013

Chemistry
Using the given boiling points, predict which compound has the higher vapor pressure at a given temperature. A. ethanol (C2H6O, bp 78 degrees C) or 1-propanol (C3H8O, bp 97 degrees C) B. hexane (C6H14, bp 69 degrees C) or octane (C8H18, bp 125 degrees C)
April 12, 2013

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