Tuesday
March 3, 2015

Posts by sandra


Total # Posts: 951

physics
10 k r point g point degree
March 17, 2011

English
Help me write an essay on How I learned English by Gregory Djanikian.
March 16, 2011

astrology of GEO PHYSICS
3 point 666 point one fifth degree
March 13, 2011

algebra
It takes 7 hours for Will to paint a house. Judy can paint the same house in 3 hours. How long will it take them to paint the house if they work together?
March 11, 2011

math
2.75 divided by 1000
March 8, 2011

Com/171
What is wrong with this sentence: The diplomats are doing what they can to restore peace.
February 28, 2011

Com/171
Your welcome. I was happy to help.
February 28, 2011

physics
Consider a 1kg mass at rest at the equator.Because of the earths rotation , the mass experiences a centripetal acceleration. a)Draw free body diagram of mass b)Find centripetal force acting in the mass c)Compare apparent weight and true weight d)what fictitious force would the...
February 24, 2011

math
7x9=63
February 24, 2011

chemistry
What is the approximate thermal energy in kJ/mol of molecules at 275° C
February 23, 2011

applied statistics
Discuss how the General Linear Model assigns the optimal “weights” to predictor variables that allow us to maximize prediction accuracy. How are discriminant functions the optimal weighted linear composites for predicting “membership” regarding the ...
February 20, 2011

Science
If the moon rotated on its axis just as quickly as Earth's, would we always see the same side of the moon? Explain. -thanks, Sandra
February 19, 2011

Office Management
One taxicab charges 75 cents for the first quarter-mile and 15 cents for each additional mile. The competing taxi company charges $1.00 for the first quarter-mile and 10 cents for each additional mile. 1. what distance would produce the same fare for the two taxi companies? 2...
February 17, 2011

Science
the answer is B
February 16, 2011

Science
when comparing the force that is required to climb a mountain walking up a trail that slopes gently upward to the top verses getting there by scaling a sheer vertical face, which of the following is true? (a) you use more force for a giving movement on the walk than on the ...
February 16, 2011

math
a small mail order company earns a 15% profit on all sales. if the company earned $5250 one month, how much were the total sales.?
February 16, 2011

ap chemisrty
Kp for the following reaction is 0.16 at 25°C. 2 NOBr(g) 2 NO(g) + Br2(g) The enthalpy change for the reaction at standard conditions is +16.3 kJ. Predict the effect of the following changes on the position of the equilibrium; that is, state which way the equilibrium will ...
February 15, 2011

math
width=w length=4w P=2(l+w) =2(4w+w) =10w
February 15, 2011

math
Stacy multiplied 5x9 and said the answer was 44. What two patterns could you use to show that her answer is not correct?
February 13, 2011

Chem 262
What solvents would you use to isolate these compounds? Malonic Acid Salicylic acid Ethyl4-aminobenzoate
February 10, 2011

Algebra
I cant write the sign for square root so I will just write it out. The problem says to simplify square root 5w^8v square root 20xu^2 I don't know how to figure out this problem.
February 4, 2011

ap chemisrty
When heated, cyclopropane is converted to propene. Rate constants for this reaction at 470°C and 510°C are k = 1.10 10-4 s-1 and k = 1.02 10-3 s-1, respectively. Determine the activation energy, Ea, from these data.
January 27, 2011

chemistry
he decomposition of nitrogen dioxide at a high temperature is second order in this reactant. NO2(g) NO(g) + 1/2 O2(g) The rate constant for this reaction is 3.40 L/mol·min. Determine the time needed for the concentration of NO2 to decrease from 2.30 mol/L to 1.30 mol/L.
January 27, 2011

science
Does the mass of water increase when a plastic water bottle filled to the brim with water is frozen?
January 26, 2011

Math 1 9th grade
A bag contains 3 green marbles and 6 blue marbles. What is the probability of drawing a blue marble, then another blue marble, then a green marble, replacing the marble after each draw?
January 20, 2011

economics
Suppose the USA and Canada are considering to trade. Assume there are only two goods in the economy: wheat and corn. The table below illustrates what each country can produce in a given year. Wheat Corn USA 4 2 Canada 5 8 In this case, which country should produce wheat? Why? ...
January 18, 2011

world issues
Identify at least two issues in developing countries that make changing to democracy easier or more difficult. Provide at least one real world example of one of the issues that you identify.
January 16, 2011

Philosophy
What ideas and events in Europe influence philosophy in the USA. How are these philosophies similar and different?
January 12, 2011

algebra
sorry about the mix up of 2001 and 2002, but the process is still the same
January 8, 2011

algebra
the difference between 1995 and 2001 is 6 years, so you add 6 to 73.7 and you get 0.6t+73.7, that's the first set of answers. Next, you replace the t with the 11 to represent the difference between the next set of years (1995 to 2006) so the next set of answers is E(11)= ...
January 8, 2011

practical nurse
in a 150 words state how you can contribute quality service to health care
January 4, 2011

algebra
it john 4 hours to mow a lawn it takes maria 3 hours to mow the same lawn, how long would it take if they worked together?
December 18, 2010

C Chemisty
What mass of hyudrogen peroxide should result when 1.50 g of barium peroxide is reacted with 25.0 mL of 0.50 M of hydrochloric acid?
December 13, 2010

Algebra
If Dale can paint a room in 5 hours alone and Chip can paint the same room in 7 hours alone. How long would it take them together to pain the room?
December 3, 2010

math
what type of math problems exemplify the different purposes of variable, and in what way do these different uses of variable can be confusing?
November 30, 2010

math
P=4xL or P=4L
November 30, 2010

statistics
given variables list them as independent (x) or as a dependent (y) I weight of child; prescription dosage II monthly commision; monthly sales II ability to concerntrate; level of fatique IV crop yield; rainfall
November 25, 2010

the president and the bureaucracy
yes there are acts of congress, regulatory rulings, court rulings, the will of the people
November 23, 2010

the president and the bureaucracy
legally, the bureaucracy derives the general authority for its programs from
November 23, 2010

Algebra
5x+2y=-11, 7x-3y=13, find x and y
November 20, 2010

math
How would I setup the equation for the perimeter and area of a similar (6inch width, and 8 inch length)rectangle that is increased by a ratio of 1:n?
November 16, 2010

7grade math
Thank you I came to the same conclusion I just wanted to see if I was going in the right direction
November 16, 2010

7grade math
using ratio 1:2 find the perimeter of rectangle that has a width of 6 inches and a length of 8 inches? need answer asap
November 16, 2010

College Chemistry
Stuck on plugging info into formula, please show set up-At 10 degrees C carbon dioide gas has volume of 25.5 mL under pressure of 758 mmHg, what would volume of CO2 be at STP?
November 9, 2010

Chemistry
Dr. Bob get the use PV=nRT just stuck on setting up the problem help!
November 9, 2010

Chemistry
Amber, Too funny i have this same question for ec College Chem at Terra! In book page 303, 35 b. Answer back of text lol!!!
November 9, 2010

Chemistry
If 20.0 g of N2 has a volume of 4.00 L and a pressure of 6.0 atm, what is its temperature?
November 9, 2010

Chemistry
A mixture of hydrogen and oxygen gas has pressure of 1.60 atm. Partial pressure of oxygen is 304 mmHg atm, what is the partial pressure of hydrogen?
November 9, 2010

chemistry
what is the net ionic equation for manganese sulfide and hydrobromic acid?
October 19, 2010

6th grade math
in the order of operations equation 8-(24/8)^2 I Alex answered with 24/8= 3 3^2 = 9 8 - 9 = answer You cannot subtract 9 from 8. So how do you get the answer?
October 8, 2010

6th grade
how do you solve the math order of operations problem 8-(24/8)^2
October 8, 2010

Algebra
Help please-I'm doing something wrong- Solve 8x^2 + 6x + 5 = 0 I'm doing square roots and all the steps but it's not working out I come up with -0.38 + 0.5 and -0.38 - 0.5 But it's not right when I go to put it back in. Could you please show the steps-these ...
October 6, 2010

5th grade
what major landform is west of the west amazon basin?
October 5, 2010

Physics
A disconcerted dog of a mass 7.80 kg is sliding down a frictionless plank which is inclined at an angle of 48.0 degrees to the horizontal. Calculate the force which accelerates the dog down the plank.
October 1, 2010

french
what does arrondis le nombre 160 795 a la dizaine de mille pres mean ?? and answer plzz
September 24, 2010

Business Math
Calculate the simple interest and maturity valve for the following problems. Round to the nearest cent as needed. 18,000,4 1/2%,18mo.
September 21, 2010

math
sixty seven thousand or six hundred seventy hundreds
September 20, 2010

Math
Rewrite rational exponent 3sqrt22
September 20, 2010

COM156
Identify three challenges that may arise when writing a paper. Explain the strategies you will use to overcome those challenges.
September 19, 2010

statistics
the quality control inspector of a production plant will reject a batch of syringes it two or more defective syringes are found in a random sample of ten syringes taken from the batch. suppose the batch contains 2% defective syringes. What is the probability that the batch ...
September 12, 2010

algebra
1/16 basically you just solve 4^-2
September 11, 2010

hardware
What types of computer hardware would make your work life more efficient?
September 11, 2010

COM 156
Identify three challenges that might arise when writing a paper. Explain the strategies you will use to overcome those challenges.
September 1, 2010

statistics
Why am I stuck? How do I figure I must be really stressed because I cannot figure this out. you exmple 9.408^2 =88.51046? How do you get it? I have squared 9.408 on calculator and get 3.08 what am I missing?
August 22, 2010

geometry
in diagram below ab parallel to cd what is the value of x
August 12, 2010

arithmetic
what is the decimal of 7/20 how do u figure it out i need step by step break down
August 3, 2010

psychology
How might a person’s self-guides affect his or her perspective of the world?
July 31, 2010

college psychology
HELP WTHE A THESIS STATEMENT ABOUT MY PAST PRESENT FUTURE
July 25, 2010

interpreting what you read
yes thank you
June 25, 2010

interpreting what you read
The purose of loaded words in advertisement is to 1 create an image 2 compare two unlike things 3 influence the reader 4 illustrate bias
June 25, 2010

king high school
in poetry and ficition, the main reason for using vivid words is to 1 explain an idea 2 create a mental image 3 keep the reader gussing 4 illustrate the writer's bias
June 25, 2010

personal finance
A.After a protracted legal case, Joe won a settlement that will pay him $11,000 each year at the end of the year for the next ten years. If the market interest rates are currently 5%, exactly how much should the court invest today, assuming end of year payments, so there will ...
June 20, 2010

physics
a car of height H could negotiate a bend on a banked road of certain degree and of radius r with a maximum speed. is it possible for a truck of height 3H to negotiate that same bend with same speed at that same angle.show proof to back the condition
June 19, 2010

chem
The label on a one-pint bottle of water lists the following components. If the density is the same as pure water and you drink 2 bottles of water in one day, how many milligrams of each component will you obtain? calcium 28 ppm, fluoride 9ppm, magnesium 14 ppm, potassium3.0ppm...
June 10, 2010

history
how many children work at factories and how many get hurt
June 4, 2010

business
How would I put this question into power point presentation.
June 1, 2010

statistics
Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you ...
May 18, 2010

math
rate in simplest form 261 miles in 29 minutes
May 13, 2010

math
surface area formula for room measurements 23ft 6in length, width 14ft 8in and height 30 feet
May 6, 2010

social studies: psychology
A conditioned response is one that occurs without regard to the original conditioned stimulus. It is now a learned behavior. A. a gun-shy dog cowers when he sees a shotgun would be the best answer because the dog is reacting to the gun in anticipation of it doing something ...
April 25, 2010

accounting
is it 1200 loss?
April 22, 2010

accounting
Bonds Payable has a balance of $900,000 and Premium on Bonds Payable has a balance of $10,000. If the issuing corporation redeems the bonds at 103, what is the amount of gain or loss on redemption?
April 22, 2010

accounting
Bonds Payable has a balance of $900,000 and Premium on Bonds Payable has a balance of $10,000. If the issuing corporation redeems the bonds at 103, what is the amount of gain or loss on redemption?
April 22, 2010

8th grade Social studies
Poeple who settled the west
April 21, 2010

Financial Management
Debreu Beverages has an optimal capital structure that is 50% common equity,40% debt, 10% preferred stock. Debreu's pretax cost of equity is 12%, pretax cost of preferred equity is 7%, pretax cost of debt is also 7%. If the corporate tax rate is 35%. What is the weighted ...
April 21, 2010

Financial Management
A 10 year bond pays 11% interest on a $1000 face value annually. If it currently sells for $1,195, What is its approximate yield to maturity? a)9.33% b)7.94% c)12.66% d)8.10%
April 21, 2010

Financial Management
A firm's stock is selling for $85, Dividend yield=5%. A 7% growth rate is expected for the common stock. The firm's tax rate is 32%. (question) What is the firm's cost of retained earnings? a)8.16% b)12.00% c)12.35% d)cannot be determined
April 21, 2010

physics
A 50 g ball of clay traveling east at 3.5 m/s collides and sticks together with a 50 g ball of clay traveling north at 2.0 m/s. What is the speed of the resulting ball of clay?
April 18, 2010

physics
An 75 kg quarterback jumps straight up in the air right before throwing a 0.43 kg football horizontally at 11 m/s. How fast will he be moving backward just after releasing the ball?
April 18, 2010

college,stats/ PLZ HELP:( need it within nxt 6hrs
never mind i got it lol
April 7, 2010

college,stats/ PLZ HELP:( need it within nxt 6hrs
Among Canadian households, 24% have telephone answering machines. If a telemarketing company contacts 2500 households find the probability that between 625 and 650 households, inclusive, have answering machines.
April 7, 2010

management
What steps would you recommend your manager take to implement the planning technique in scenario planning
April 4, 2010

Physics
Would the answer be b.. What I did was figured out the relationship between KE and speed. If KE quadruples, speed would only double. I am not sure about the next step though, I just used the following equation: mvr = nk; this gives me that r and v are inversely related so if v...
April 4, 2010

Physics
In the absence of external torques, the angular momentum of a system is conserved. An artificial satellite orbiting the Earth quadruples its kinetic energy. Assuming no external torques act on the system, the radius of the orbit will ... a. Decrease by a factor of 4 b. ...
April 4, 2010

Physics
The allowed orbits for the electron around the nucleus of the hydrogen atom are explained by de Broglie as ... a. Quantized values for the total energy of the electron in the atom b. Quantized values for the angular momentum of the electron in the atom c. Standing waves for ...
April 4, 2010

Physics
You meet a person with prescription glasses of +0.55 dpt. What is the near point of this person? Express the result as a positive number! Hint: the near point of a healthy person is 25 cm. An object placed at this distance will form an image at the near point of the person.
March 28, 2010

Physics
The refractive index of a material is different for different wavelengths and colours of light. For most materials in the visible range of the electromagnetic spectrum, shorter wavelengths have larger refractive index compared to longer wavelengths. The effect of this on ...
March 26, 2010

Physics
A small fish is inside a spherical bowl filled with water (n=1.33). The bowl has a diameter of 30cm and the fish is at a distance of 5cm from the surface that separates water and air (ignore the effects of the glass of the bowl). The image of the fish is ... a. Real (forms in...
March 26, 2010

social studies
How has early memory research concerning the growth of cognitive perspectives in psychology changed over the course ofthe 20th century?
March 26, 2010

MARIJUANA AND PRESCRIPTION DRUGS OXYCONDONE
WRITE AND INTRODUCTION AND CONCLUSION ON MARIJUANA AND PRESCRIPTION DRUG OXYCODONE
March 23, 2010

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