Friday
August 1, 2014

Posts by tim


Total # Posts: 934

Algebra
This is soooo confusing! An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour. The airplane then returns at an average rate of 280 miles per hour. The total travel time is 3 hours. A. Define a variable for the flying time...

Algebra
Yeah, I did it right! Thank you!!

Geography
Following the breakup of the Soviet Union, what are some of the major problems faced by many of the new countries? Thanks.

buss/stats
what is it called when all the items in the population have the same chance of being selected for the sample?

question
thank you very much

question
But critical writing like argumentative essays have structure. (can you tell me what is wrong with this message?)

physics
What quantity is given by the gradient of such a graph?

Math
Edit...25 balls in the bowl..

Math
There are 20 balls in a bowl. 7 black, 6 blue, 5 green, 4 red, and 3 yellow. Balls must be drawn until 4 different colors are drawn. What is the probability that one is black? Please walk me through if you can...

math
31

Physics 9th grade
no

math
On a board game if you landed on red you move ahead 1 space,land on blue you move ahead 2 spaces,and land on orange you move back 1 space. If you took 30 spins where would you expect to land relative to where you started?

American Government
In The Declaration of Independence how did they signify the colonists’ relationship to Britain?

English
what is John updike`s message in this paragraph? The next morning, I went back to the open vantage from which we had watched the tower so dreadfully slip from sight. The fresh sun shone on the eastward façades, a few boats tentatively moved in the river, the ruins were ...

physics
a stone tied at one end of a string of length,l is whirled in a horizontal circle with constant linear speed,v.which of the following expressions describe the relation between the radius of the circle,r and the angle between the string and the vertical axis?

social studies
Although the Chesapeake and New England colonies differed in many ways, relations with Native Americans followed a similar course in both regions. Why? What were the biggest factors in relations between the two sides? Did relations change over time and why?

social studies
in what ways?

social studies
In what ways did English settlement patterns differ according to region and environmental factors?

Psychology
Can anyone explain to me what they are trying to ask in this question. What is the difference between the Sympathetic Nervous System response and the HPA Axis in terms of both process and function?

buss/stats
Sorry the full question is A loaf of bread is normally distributed with a mean of22 oz. and a standard deviation of 0.5 oz. a, what is the probability that a loaf is btwn 22.75and 23.00? B, 5% of the loafs will weigh less than_____ ounces? C, assuming 200 loaves are baked on a...

bussi./stats
what is the probability that a loaf of bread is between 22.75 and 23.00?

Math
Write the rectangular equation in polar form. (x – 4)2 + y2 = 16

PreCal
Thanks, I am understanding now.

bus/stats
a sample of the personal files of eight male employees revealed that, during a six-month period, they lost the following number of days due to illness: 2,0,6,3,10,4,1 and 2. Calculate the standard deviation of the above sample? the means deviation is 2.375? but not sure how to...

MATHS
Four points lie in a plane. They are partitioned into two pairs so that the sum of the lengths of the segments joining the points of each pair has the minimal possible value. Prove that these segments have no common points.

bus. /stats
Use the data given in the table to construct a frequency distribution and ogive? Before constructing a dam on a Hill river, the Army corps of engineers performed a series of tests to measure the water flow past the proposed location of the dam. The results of the testing were ...

buss./stats
a sample of the personal files of eight male employees revealed that during a six month period they lost the following number of days due to illness 2, 0, 6, 3, 10, 4, 1, 2 calculate the standard deviation show your work

business and stats
What type of data is the projected return on an investment? Qualitative , continous, attribute,discrete or none of the above

Communication
For the following, state the value of the discriminant and then describe the nature of the sloution. -3x^2-8x-19=0

English
I need to check my work on diagramming this question. How many players are on a team? I think it should be as follows: How (adverb) many (adjective) players (direct object) are (past tense verb) on (proposition) a (definite article) team (subject of proposition)? Does this see...

College algebra
Solve. V^2-6v-16=0

Algebra
How do i simplify 3n^2+3n/6n^2+9 by removing factors of 1

algebra
10 cm^3 of a normal specimen of human blood contains 1.2 g of hemoglobin. How many grams does 17 cm^3 of the same blood contain?

Math
A firecracker is launched straight up, and its height is a function of time, h(t)= -14^2 + 112t, where h is the height in feet and t is the time in seconds with t=0 corresponding to the instant it launches. What is the height 5 seconds after launch? What is the domain of this ...

chem
What pressure (atm) is exerted by a column of ethanol 86.0 cm high. The density of ethanol is 0.789 g/cm3 and 9.8 m/s2 as your gravitational constant.

PHY
A traveling wave is produced on a rope. The wave travels until it hits a wall and it is reflected. If the speed of the wave is 1.8 m/s and it takes 3.3 s to get back to the starting point, how long (m) is the rope.

chem
The average distance between planet X and Earth is about 1.5 x 10^8 miles. How long (minutes would it take pictures transmitted from a space vehicle on Planet X's surface to reach Earth?

chem
At 36.4°C a sample of ammonia gas exerts a pressure of 6.8 atm. What is the pressure when the volume of the gas is reduced to one-fourth of the original value at the same temperature

mirco-economics
yes

mirco-economics
Help In the first case (Total Fixed Cost equal one million: Total variable cost equal $ 4.4M ($ 4M for wages (fifty thousand workers time eighty dollars per worker) plus four hundred thousand other variable inputs. Average variable cost equal twenty two dollars (Total variable...

math
is the pair of lines parallel x+2y=7 and 2x+4y=3

physics
A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of the lever? What is th...

physics
3. A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of the lever? What is...

Math
How do i graph the function y^2=x*(x-4)^2. I have no idea where to begin.

human resource management
1. Critically evaluate the job analysis that Mary conducted for the position of assistant manager. Has she used appropriate methods? What are the strengths and weaknesses of her efforts? 2. What kind of factors about Today's Fashion and its operations should Mary have exam...

math
fractions equivalent to 18/24

math
Wats 12yds 2ft + 5yds 2ft

physics
in terms of ph,explain what would if you happen if you if you mixed vinegar with a solution of ammonia what type of products would form

math
if all nos in the equation y/y+101 = 11in base 2, solve for y

Compound math
P*(1+i)* Exponent which is time invested $8000x(1+.o62)30 $8000 x ((1 + .062)^30) = $48,621.1794 U.S. dollars

physics
What mass (in grams) of steam at 100°C must be mixed with 341 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 57.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, and the latent ...

physics
The average rate at which energy is conducted outward through the ground surface in a certain region is 51.6 mW/m2, and the average thermal conductivity of the near-surface rocks is 3.31 W/m·K. Assuming a surface temperature of 11.7°C, find the temperature (in Celsi...

math
thanks! i really appreciate this :)

math
simplify: 1. a^2b^-3 2. (5/3)^-3 3. (a^2b^0c)^0 4. x^-2y^3 5. 3x^-2 6. n^2/n^-3 please help!!

Tech401
How the internet policies of some countries may affect a company's ability to expand globally?

mathematics
area is length x width so what times what equals 25? 5

chemistry
what is the concentration, in % m/m of a solution prepared from 50.0g sodium chloride and 150.0g of water

Math
How would I solve this...I don't get it. Two solutions of an equation are (6,5) and (8,5). What could the equation be?

phyiscs
Two persons watch the same object move john says that it accelerate straight downward, but Samantha claims that it falls Along curved path.describe the conditions under which each person would be reporting correctly what they see. Thanks and please please please answer this la...

physics urgent
yes mr.pursley

physics urgent
an airplane is flying horizontally over ocean at the speed of 200 meters/seconds and at the altiude of 2000 meters.the pilot drops a flare. A. how many second after release does the flare hit the water? b.At what distance from point p,directly under point of release does the f...

chemistry
when 52 moles of benzene combine with oxgen, how many moles of carbon dioxide are produced? what else is produced in addtion to the carbon dioxide

math
Sa

4th grade math
Name the top view, front view, side view of a cone

statistics
an average of 0.56 defects per 500 yards. Using the Poisson formula, find the probability that the number of defects in a given 500-yard piece of this fabric will be more than 3

early childhood ed
a childs observation of a parent writing a grocery list, his recognition of the coca cola logo, and his leafing through mailbox advertising literature exemplify. answers 1. cultural imprints 2. autonomous language 3. literacy events 4. mastery of decontexualized language my an...

geometry
The perimeter of a kite is 24 I'm tring to find the the sides the kite 4cm less than 3 times the length of another

Algebra
Find the polynomial function P of the lowest possible degree, having real coefficients, with the given zeros. 3+2i, -2 and 1

Liberal Arts Math
what is k(p)= (p+3)(p-7)

Chemistry
What is the molarity of CuCl2 solution that completely reacts with 10.0g of zinc , if the volume of the solution is 360mls? Zn(s) + CuCl2(aq) ¨ ZnCl2(aq) + Cu(s) A. 0.42 B. 0.00021 C. 0.21 D. none of these

statistics
Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that of two items sold during a given hour by this company both will be returned for a refund

statistics
Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that of two items sold during a given hour by this company both will be returned for a refund

statistics
an average of 0.56 defects per 500 yards. Using the Poisson formula, find the probability that the number of defects in a given 500-yard piece of this fabric will be more than 3

statistics
Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that of two items sold during a given hour by this company both will be returned for a refund

math
The altitude of a triangle is increasing at a rate of 3 centimeters/minute while the area of the triangle is increasing at a rate of 7 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 22 centimeters and the area is 66 square cen...

social studies
how did the spanish differ from the portugese in searching for a route to asia

THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT
its ur ass

math
how much force is need to split a 20" x 20" green hedge log?

english
Write one paragraph of at least 200-words explaining what the student could have done differently to avoid the plagiarism concerns raised by the faculty member. How could the use of Plagiarism Checker have helped the student?

psychology
what is the design, purpose and the limits of an I.Q test?

Physics
A car drove a total 5km. Accelerated 10seconds then had a constant velocity. Entire trip was 45 seconds. Was was the initial acceleration and final velocity?

Physics
A car drove a total 5km. Accelerated 10seconds then had a constant velocity. Entire trip was 45 seconds. Was was the initial acceleration and final velocity?

Algebra
A model train is made by connecting cars with possible lengths of 2 inches and 5 inches. what is the number of inches in the greatest impossible whole-number length of such a train?

chemistry
how much lithium hydroxide will be needed to remove 75.0 grams of carbon dioxide?

algebra
Sam has $50 in the bank. He deposits $5 each week and does not withdraw any money. How much will he have in his account in w weeks?

Chemistry
Mass of flask = 81.39g Mass of flask and water = 104.26g Mass of flask ,water,and solute =129.53 Mass of solute= 25.27g Boiling point of water =98.7C Boiling point of solution =109.5C Calculate the molecular weight of the solute using the data. M=Kb*r solute/delta Tb*kg solven...

algebra
y+x=-9

algebra
slope x=-6

algebra
6+9x<42

algebra
solve -10<=3x-5<=-4

economics PLEASE HELP
According to the permanent income hypothesis, households will tend to react to a temporary tax cut by

geometry
Triangle ABC is an isosceles triangle, where angle B is the vertex angle. If BC = 10x-4 , AC= 2x+18 , and AB= 6x+32, find the value of x.

calc
construct an isoceles triangle with an area of 100. what is the length of the base of the triangle which has the smallest perimeter? Prepping for a test, explanations please

physics
A convex mirror with a radius of curvature of 10 cm (C=10 cm) produces a virtual image 1/3 the size of the real object. What is the object's distance?

Chemistry
A 15.0% (by mass) NaCl solution is available.. Determine what mass of solution should be used to obtain a. 2.50 mole of NaCl b. 25.0 g/mol of NaCl

math
A square room has perimeter of 32 feet. How. Many many square floor tiles with sides 1 foot long are needed to cover floor

Physics
An amusement ride consists of a large horizontal circular platform turning at 12 rpm. People attempt to sit on this platform without slipping toward the outer edge. The coefficient of static friction is 0.15. Determine the distance from the center of the platform that a 150-po...

us history
The Mayflower compact is an example of which concept?

algebra
solve using the multiplication principle.

Math
My teacher gave us a puzzle. I have worked on it for 2 hours with both my parents and they can not figure it out. 0 o 0 o 0 o 0 o 0 In the above there are 5 squares. Top left, top right, bottom left and bottom right, and the last one formed by the o's diagaonally. Arrange ...

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