Tuesday
October 21, 2014

Posts by James


Total # Posts: 1,850

geometry
consider a circle of radius 1, and corresponding inscribed and circumscribed polygons with the number of sides n = 3, 4, 5, 6, and 8. A: For each n = 3, 4, 5, 6 & 8, what are the areas of the inscribed and circumscribed polygons with n sides?
July 27, 2013

Math Statistics
2. A statistics professor has asked his students to flip coins over the years. He has kept track of how many flips land heads and how many land tails. Combining the results of his students over many years, he has formed a 95% confidence interval for the long-run population ...
July 27, 2013

Math Statistics
Students enrolled in an introductory statistics course at a university were asked to take a survey that indicated whether the student has a visual or verbal learning style. Of the 39 students who took the survey, 25 were judged to have a visual learning style and 14 were ...
July 25, 2013

finance (math)
nevermind... it's the same as 5%. I get it.
July 22, 2013

finance (math)
If you just use the Table of Future Value Factors, you'll see that 5% at 15 years is 2.079. Therefore, 75,000 * 2.079 = 155,925. I am really confused as to where the 1.05 comes from...
July 22, 2013

finance (math)
Where are you getting the 1.05 from?
July 22, 2013

American National Government
The purpose of gerrymandering a district is to- the influence of certain groups and gurantee that certain representatives keep their seats
July 21, 2013

Math: Calc 2
Find the volume of the solid obtained by rotating the region under the graph of the function f(x) = x^(13/12) about the x-axis over the interval [1,3]. Thanks!
July 9, 2013

physics
A 75.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 4.30 m. What is the work done on the man by (a) the gravitational force and (b) the escalator?
July 8, 2013

Phisics
A speed boat is required to move at a constant speed of 50 MPH. What is the power needed to overcome a resistive force of 1000 lbs from the water?
July 3, 2013

English
What is the different between traditional Vietnamese and Vietnamese tradition?
June 25, 2013

Discreet math
[(pvq)^(p=>)^(q=>)]=>r[(pvq)^(p=>)^(q=>)]=>r
June 25, 2013

Math 61 part 2
Find the centriod of the boundEd by the curvez y=x^2 and y=2x+3
June 24, 2013

Math 61
Find the arc length of the curve y^3=8x^2 fr0m x=1 to x=8.
June 23, 2013

statistics
The customer bills in a family restaurant are normally distributed. The bills mean is $28 and has a standard deviation of $6. a. Identify what the random variable you are measuring is in this problem. b. What is the probability that a randomly selected bill will be at least $...
June 22, 2013

Geometry
53. What is the equation of the circle with center (2, –5) that passes through the point (–2, 10)? (1 point) (x – 2)2 + (y – (–5))2 = 25 (x – (–2))2 + (y – 10)2 = 241 (x – 2)2 + (y – (–5))2 = 241 (x – (–2))2 + (y...
June 10, 2013

Geometry
50. Find the value of x for ° and °. The figure is not drawn to scale. (1 point) 34° 56.5° 22° 68°
June 10, 2013

Geometry
46. Assume that lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x. Figures are not drawn to scale. mO = 128° (1 point) 52 308 64 256
June 10, 2013

trigonometry
how do i determine the point of intersection of a circle with a radius of 14 and the line coming in at a 35 degree angle
June 6, 2013

physics
A juggler traveling in a train on level track throws a ball straight up, relative to the train, with a speed of 5.75 m/s. The train has a velocity of 19 m/s due east. (a) As observed by the juggler, what is the ball's total time of flight? s What is the displacement of the...
May 30, 2013

Physics
How much work does it take to stretch a spring with k= 150N/M 10cm from equilibrium?
May 30, 2013

Physics
If the coefficient of kinetic friction is 0.25, how much work do you do when you slide a 45 kg box at constant speed across a 5.8m -wide room?
May 30, 2013

Physics
Segment A 540-0/120-0 =4.5 Segment B 0-0/0-0 = 0 Segment C 1080-540/288 = 7.5
May 29, 2013

Physics
A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration during each of the segments A, B, and C? The scale for the time axis is 60 s per increment, and the scale for the velocity axis is 270 m/s per ...
May 29, 2013

CHEMISTRY
Which of these statements is not true? lithium reacts with carbon to form ionic carbides, Acetylene is neccesary for the formation of some carbide liquid ammonia is is used to form carbides All metals react with carbon to form carbides
May 29, 2013

Chem
The molar weight of MgSO4 is 120.366gmol-1. What is the mass/volume percentage of a 2.5M water solution of MgSO4?
May 27, 2013

Physics
Starting from rest, a skier slides 100 m down a 28 degree slope.How much longer does the run take if the coefficient of kinetic friction is 0.17 instead of 0?
May 27, 2013

Statistics
During the 2011-12 winter season, a homeowner received four deliveries of heating oil, as shown in the following table: Gallons Purchased Price per Gallon ($) 209 2.60 182 2.40 157 2.78 149 2.74 The homeowner claimed that the mean price he paid for oil during the season was (2...
May 26, 2013

Statistics
. The following data give the 2010 gross domestic product (in billions of dollars) for al 50 states. The data entered in alphabetical order by state (Source: Bureau of Economic Analysis). 173 49 254 103 1901 258 237 62 748 403 67 55 652 276 143 127 163 219 52 295 379 384 270 ...
May 26, 2013

Statistics
1. The following data give the amount of money (in dollars) that each of six Canadian social service charities spent to raise $100 in donations during 2010. The values, listed in that order, are for the Calgary Inter-Faith Food Bank Society, Covenant House Toronto, The ...
May 26, 2013

Quantum Chemistry
sdfg
May 26, 2013

math
If it is given tan(A-B) tanA-tanB/-1+tanAtanB and tanP-1/1+tanP=tan195 Find the value of P
May 19, 2013

Math
A wheel on Greg's bicycle is 0.3 m in diameter. Greg races the bicycle for 31 m. How many times does the wheel turn as the bicycle travels this distance?
May 14, 2013

Public speaking
When conducting research for supporting materials, it is imperative to remember: A. there is one right source for certain information. B. always to take notes and record. C. always do a personal interview. D. use only the most current source of information
May 13, 2013

Environmental Science
Consider the population situation in Italy or Germany; very low birth rates, an aging population, and eventual decline in overall numbers. For this week's individual work, please write a 1-2 page paper (counting body text only, not title or reference pages) in double-...
May 9, 2013

calculus
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 the shoreline The intake and ...
May 8, 2013

Math
316/1 = x/3 cross multiply 316*3 = x 948 = x x = 948 similar cone volume
May 8, 2013

Ms.Sue
Ms.Sue, do you know how to do calc?
May 8, 2013

calculus
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 the shoreline -The intake and ...
May 8, 2013

Math
32 is wrong 5/(3/5) = (5/1)*(3/5) flip and multiply (5/1)*(5/3) = 25/3
May 8, 2013

Math
dividing fractions is pretty simple. you take the denominator (the second fraction) and flip it. Then simply multiply the fractions ex. (1/2) divided by 5/7 First, flip, then multiply (1/2)*(7/5) so 7*1 = 7 and 5*2 = 10 therefor the answer is 7/10!
May 8, 2013

Physics
yea, no thank you!
May 8, 2013

calculus
thank you!!!
May 8, 2013

calculus
16. Given the following information, determine the constant speed, travel time, and cost that represent the minimum one-way trip delivery cost. Fuel costs per hour are equal to V^2/600 V is the speed in miles per hour Driver (labor) costs are $10 per hour One-way distance is ...
May 8, 2013

calculus
16. Given the following information, determine the constant speed, travel time, and cost that represent the minimum one-way trip delivery cost. Fuel costs per hour are equal to V^2/600 V is the speed in miles per hour Driver (labor) costs are $10 per hour One-way distance is ...
May 8, 2013

calc
can you tell me how you got √(x^2+4) and √((3-x)^2 + 1)
May 8, 2013

statistics
The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is mound-shaped and symmetric with a mean of 24.6 mpg and a standard deviation of 11.2 mpg. If 30 such cars are tested, what is the probability the average mpg achieved by ...
May 5, 2013

maths
The monthly standing charge for a electrical company is €12.50 plus a cost of €0.16 per unit of electricity used. A customers monthly bill was €156.18. Determine how many units of electricity the customer used in that month.
May 3, 2013

Science
1.Why do you think an FRH doesn’t come with water already in it? 2.Do you think there are small pieces or large pieces of magnesium metal in an FRH? Explain. 3. Why is it important that the reaction in an FRH be fast?
May 1, 2013

Chemistry
What should be the number of significant figures in the following calculation? It's an error calculation which is absolute value (True value - experimental value) / true value * 100 so it would be: absolute value [-601.7 - (-587)] / -601.7 * 100 Should the answer be 2.44 ...
April 30, 2013

English
ok thank you - so it is C...
April 29, 2013

English
Forget it - it's C...right?
April 29, 2013

English
8. Identify the sentence that contains an error in punctuation or capitalization. "After you’ve rested," Frank said, "please help me move these boxes." "Can we wait until later?" asked Emily. "I have a lot of homework." "It won...
April 29, 2013

English
thank you
April 29, 2013

English
Mel Gibson , Hamlet and Macbeth in A...bonjour in B.,...Smithsonian and Time in C...and Our Town in D..
April 29, 2013

English
After reading your link. i think it is B. with bonjour being italicized.
April 29, 2013

English
What do you think it is? why would MEL GIBSON be italicized? In that sentence Mel gibso is italicized and hamlet or macbeth is italicized.
April 29, 2013

English
7. Identify the sentence that contains a word or phrase that should not be in italics. *Is Mel Gibson in the movie version of Hamlet or Macbeth? Lenny has trouble pronouncing the word bonjour. Glenda subscribes to Smithsonian and Time magazines. Thornton Wilder's play Our...
April 29, 2013

english
after Bites
April 29, 2013

english
I understand what you are saying now - I think it is B..
April 29, 2013

english
I have to pick the one that is pucuated or capitalized incorrectly. and i CANNOT pick two answers.
April 29, 2013

english
I understand that. I think it is A.
April 29, 2013

english
so which one would you go with?
April 29, 2013

english
9. Identify the sentence that contains an error in punctuation or capitalization. Perry asked if anyone knew the words to "Locked Out." "Wasn't that in the movie Reality Bites," asked Grace? Garrison yelled from the other room, "I loved that movie...
April 29, 2013

english
I think you've is incorrect.
April 29, 2013

english
now that I have reread them, I think its A.
April 29, 2013

english
why is that wrong? shouldn't it be in quotations.
April 29, 2013

english
8. Identify the sentence that contains an error in punctuation or capitalization. "After you’ve rested," Frank said, "please help me move these boxes." "Can we wait until later?" asked Emily. "I have a lot of homework." "It ...
April 29, 2013

english
Thank you
April 29, 2013

english
he wrote it about himself. that is an autobiography.
April 29, 2013

english
why not the third one?
April 29, 2013

english
11. All of the guests at the party partook in libations of all sorts to honor the hostess of the party. a meal of several courses *the pouring of drink as an act of respect the sharing of kind words when in a large group a form of gift giving that pays respect to a friend 12...
April 29, 2013

History
Thank You.
April 26, 2013

History
1. A decline in the number of U.S. manufacturing jobs was in part the result of *globalization. biotechnology. entrepreneurs. superstations. 2. The first modern computer was designed to benefit universities. the economy. *the military. corporations. 3. Which company developed...
April 26, 2013

College algebra
20x^2+12x
April 24, 2013

physics
Kelli weighs 392 N, and she is sitting on on a playground swing that hangs 0.4 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.1 m above the ground. If Kelli moves through the lowest point at 1.5 m/s, how much work was done on the swing by ...
April 23, 2013

physics
Kelli weighs 392 N, and she is sitting on on a playground swing that hangs 0.4 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.1 m above the ground. If Kelli moves through the lowest point at 1.5 m/s, how much work was done on the swing by ...
April 23, 2013

accounting
B 100000
April 20, 2013

History
4. What Reagan policy resulted in an increase in the federal budget deficit? *supply-side economics deregulation increased defense spending increased spending on social programs Thank You.
April 19, 2013

3rd grade math
What does 5 fracture each 1/2 mean?
April 18, 2013

History
Thanks. i figured it out. its high inflation.
April 18, 2013

History
4. Which of the following influenced the presidential election of 1980? high inflation low gas prices racial tensions *a war with Iraq Thank You.
April 18, 2013

physics
An 11-mm wide diffraction grating has rulings of 550 lines per mm. Light is incident normally on the grating. The longest wavelength that forms an intensity maximum in the fifth order is closest to? The correct answer is 488nm but I cant seem to get that answer.
April 17, 2013

physics
An 11-mm wide diffraction grating has rulings of 550 lines per mm. Light is incident normally on the grating. The longest wavelength that forms an intensity maximum in the fifth order is closest to? The correct answer is 488nm but I cant seem to get that answer.
April 17, 2013

Math- steve or ms. sue
does the data in the table represent a direct variation or an inverse variation? x 2 4 8 12 y 4 2 1 2/3 Choices: inverse variation; xy = 8 direct variation; y = 8x inverse variation;y/x = 8 *direct variation; y = 8/x Thank You.
April 17, 2013

Clinical Chemistry
DrBob???
April 16, 2013

Clinical Chemistry
Anyone here good with clinical chemistry, particularly separation assays and high performance liquid chromatography?
April 16, 2013

College Algebra
Ahh I can't believe I didn't see that! I appreciate your help!
April 16, 2013

College Algebra
Theres this chemistry problem im getting stuck in because i'm confusing myself with the math. Equation given = %O2 saturation = 100 x (pO2/(pO2 + K) %O2 = 35 K = 1.51 how do I calculate pO2?? I can't seem to cancel them out correctly. Answer = 0.813
April 16, 2013

calculus
Determine the maximum and minimum of each function on the given interval. a)  = 2x^3 − 9x^2 ,−2 ≤ x ≤ 4 b)  = 12x − x^3 ,  x∈ [−3,5]
April 16, 2013

Grade 12 Calculus
Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. a) f(x) = x^2 − 4x + 3 , 0 ≤ x ≤ 3 b) f(x) = (x − 1)^2&#...
April 15, 2013

MATH
Find all solutions of the equation tan^5 x - 9tan x =0. The answer is Ak\pi where k is any integer, the constant A=???
April 14, 2013

math
4 * 15.00= $60
April 14, 2013

pre calculus
Simplify and write the trigonometric expression in terms of sine and cosine: ((2+tan^2 x)/(sec^2 x))-1 = (f(x))^2 f(x)= ??
April 14, 2013

pre calculus please help
Find all solutions of the equation tan^5 x - 9tan x =0. The answer is Ak\pi where k is any integer, the constant A=???
April 14, 2013

pre calc
Find all solutions of the equation 3sin^2 x -7sin x +2 = 0 in the interval [0,2pi). The answer is x_1= ?? and x_2= ?? with x_1<x_2.
April 14, 2013

pre calculus
Simplify and write the trigonometric expression in terms of sine and cosine: sin x + (cot x cos x) = 1/(f(x) f(x)= ???
April 14, 2013

math
Find all solutions of the equation tan^5 x - 9tan x =0. The answer is Ak\pi where k is any integer, the constant A=???
April 14, 2013

Math
2 divide 69.28 plz give work too!
April 8, 2013

PHILOSOPHY
Who claimed that our subjection to pain and pleasure should be the foundation for our lives?
April 8, 2013

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