Wednesday
October 22, 2014

Posts by MAry


Total # Posts: 3,272

math
well just wanted to see how you worked the answer
August 18, 2012

math
The following sets of ordered pairs are functions. Give a rule that could describe each function. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}
August 18, 2012

math
In the following, write an expression in terms of the given variables that represents the indicated quantity: a. The cost of having a plumber spend h hr at your house if the plumber charges $30 for coming to the house and $x per hour for labor b. The amount of money in cents ...
August 18, 2012

math
The following sets of ordered pairs are functions. Give a rule that could describe each function. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,7),(5,26)}
August 18, 2012

physics
which one best describes appr. uniform velocity? 1. a hockey puck sldng across the ice 2. a baseball pitched toward a batter 3. the tip of the minute hand on a clock 4. an olympic sprinter running the 100m
August 17, 2012

math
Can you make, using any math symbols, make four 8s equal 5?
August 16, 2012

prealgebra
At the same time that a 60-foot tall building casts a shadow that is 21.5 feet long, a nearby tree casts a shadow that is 18 feet long. Which measure is closest to the height of the tree?
August 15, 2012

OCHEM
I have the same question and it doesn't have any impurities.
August 12, 2012

english
oh yes, it's versus. Also, from the links you gave me, I found that versus means opposite. Thank you really much !!
August 5, 2012

english
antennae, involuntary , vesus Does any of those words mean opposite or contrasted with??
August 5, 2012

books
what is the theme for the book called OKAY FOR NOW
August 5, 2012

english
what is a theme give examples
August 5, 2012

math
35 is what percentage of 175?
July 30, 2012

math
the mean of a list of seven numbers is 45. if i add two numbers to this list the mean of he list becomes 37 what is the mean of the two numbers that i added to the list
July 27, 2012

chemistry
What is the electronic transition for LiCl using this equation 1/(7.01 ×〖10〗^(-7) )= R_H (1/4- 1/(n_f^2 ))
July 25, 2012

english
Comparison and contrast
July 24, 2012

chemistry
What is the amount of heat required to turn 1 g of ice into vapor directly without forming a liquid first?
July 24, 2012

Chem 22
3.5 cm of Mg ribbon(0.009729 g/cm0 reacts with HCL to produce 32.6 ml. of Hydrogengas at 750 mm Hg and 20 degree C. the vapor pressure of water at 20 degree C is 17.5 mm Hg. Calculate the molar volume of hydrogen (L/mole) and the percent error in your determination
July 23, 2012

Chem 22
3.5 cm of Mg ribbon(0.009729 g/cm0 reacts with HCL to produce 32.6 ml. of Hydrogengas at 750 mm Hg and 20 degree C. the vapor pressure of water at 20 degree C is 17.5 mm Hg. Calculate the molar volume of hydrogen (L/mole) and the percent error in your determination
July 23, 2012

Chem 22
2.00 grams of hydrocarbon warmed 150.0 ml. water from 25.0 degree C to 30.0 degree C. Calculate the heat of hydrocarbon in K/g. the specific heat of water is 4.184 J/g. degree C
July 23, 2012

PED212
Reflect on how your perceptions of physical education have changed based on your understanding of its evolution.
July 19, 2012

chemistry
Thanks Dr. Bob! :D You're the best!
July 18, 2012

chemistry
I will give an "illustration" as to how I found it. ============ll ll ll========= ll ll ll@ ll ll========= ll ============ll. All the parallel lines illustrate the hot water bag and how it was folded. The "@" is to represent the earphones hidden in the ...
July 18, 2012

chemistry
Hello, this question is purely out of curiosity, please help to enlighten me. A hot water bag (one of those rubber ones with the rubber stopper at the top you screw in) was hidden under my bed for about a month. It was filled with a bit of water and folded in half during this ...
July 18, 2012

maths
You deposit $10,000 in an account earning 4% interest compounded monthly. a. How much will you have in the account in 25 years? b. How much interest will you earn?
July 18, 2012

math
Suppose you are looking to buy a $5000 face value 26-week T-bill. If you want to earn at least 1% interest, what is the most you should pay for the T-bill?
July 18, 2012

maths
Ten blackberry plants started growing in my yard. Absent constraint, blackberries will spread by 200% a month. My yard can only sustain about 50 plants. Using the logistic growth model, a. Write a recursive formula for the number of blackberry plants in my yard b. Calculate ...
July 18, 2012

Human Services
program design component for Habitat for Humanity where can I find information about this?
July 16, 2012

math
If two fair dice are rolled, find the odds in favor of getting doubles
July 15, 2012

Math
The surface area of any shape is expressed in: A. square units. B. cubic units. C. feet and inches. D. length and width.
July 14, 2012

Math
A circle is measured by a straight line across its widest part. This line is the __________ of the circle. A. area B. radius C. volume D. diameter
July 14, 2012

Math
I got B 4.545
July 14, 2012

Math
Divide: 100/22 = A. 5.011 B. 4.545 C. 4.98 D. 4.345
July 14, 2012

Math
Convert the mixed number, 1 3/4 , to a fraction. Reduce fraction if necessary. A. 4/12 B. 4/7 C. 7/4 D. 12/4
July 14, 2012

Math
Thank you Bob :)
July 14, 2012

Math
What is the volume of a cylinder with the following dimensions: Radius 6ft Height 24ft A. 33.14 ft3 B. 2712.96 ft2 C. 2712.96 ft3 D. 33.14 ft2
July 14, 2012

Math
Reduce the fraction 20/100. A. 4/20 B. 2/20 C. 1/5 D. 5
July 14, 2012

Case Study
Gladys strengths includes her desire to see help concerning the spousal abuse she receives at the hands of her husband and the fear she has for her children
July 2, 2012

intermeidate algebra
solve using elimination method -3x+4y=1, -6x+6y=-3
June 29, 2012

Algebra
2a+3b-c+(a-b-c)-(2a-4b+3c)
June 28, 2012

physics
1. A yacht is tacking into the wind on a zigzag path. On the rst leg of the course, the yacht has a displacement of 12 km at 840 north of east. After a second leg has been completed, the yacht's resultant displacement is 10 miles at 230 west of south. Determine the ...
June 27, 2012

Math
find the perimeter and area of a right triangle if the shortest side is 9 inches and the longest side is 41 inches
June 26, 2012

math
A recreation room has the following dimensions. Carpeting will cost $1.50 per square foot. How many square feet of carpet will be needed and how much will it cost?15 ft, 33 ft, 12 ft, 12 ft.
June 26, 2012

chemistry
Titration of 50.00 mL of 0.0521 M sodium oxalate, Na2C2O4, required 38.71 mL of a potassium permanganate solution: 5 C2O42- + 2MnO4- + 16H+ = 2Mn2+ + 10 CO2 + 8H2O Calculate the molarity of the potassium permanganate solution.
June 23, 2012

chemistry
A 0.8378 g sample of calcium oxalate is heated to 1000oC, CaC2O4 = CaO + CO + CO2 Calculate (a) the moles of CaO remaining after ignition (b) the mmoles of CO evolved (c) the weight of CO2 produced.
June 23, 2012

chemistry HELP!
How much of a 0.10 M H2SO4 solution is required to neutralise 1g of NaOH? Express your answer in cm3.
June 23, 2012

math
how do you do 16.1 divided by .023 ?
June 20, 2012

social studies
Between 1935 and 1957, a period that included World War II, the birth rate rose from 16.9 to 25 per 1000 people. What was the most likely cause of this "baby boom?" A) the change in view toward artificial birth control methods B) the return of young American soldiers...
June 18, 2012

Algebr 1B
Simplify if possible x^2+17x/x^2-9x+x^2-10x/x^2-9x
June 10, 2012

literature
In the call of the wild,what did Buck dream about by the campfire?
June 6, 2012

Math
I know that 35 divided by 7 equals 5, knowing this how does it help me to find 42 divided by 7? Explain
June 5, 2012

Math
I know the answer I just need to know how to explain it!
June 5, 2012

Math
How could knowing that 35 divided by 7 equals 5 help me find 42 divided by 7?
June 5, 2012

Chemistry
A sample of methane gas at room temperature has a pressure of 1.50 atm and a volumne of 10.5 L. If the temperature is kept constant, what will be the new volume if the pressure is increased to 2.00 atm?
June 3, 2012

Chemistry
a basketgball is inflated to a pressure of 1,50 atm in a 20.c garage. What is the pressure of the basketball outside whre the temperature is -5.00 C?
June 3, 2012

fractions
I need a fraction example using 1024 x 768. It is for building a web page. So I guess the fractions would be 1024/1 x 768/1 .Any help would be great. The 1024 and 768 is what size monitor the screen is
May 31, 2012

world geography
japan
May 30, 2012

10th grade chemistry
What is the oxidizing agent during discharge
May 29, 2012

algebra
Add 12/5 and 8/13. Fractions show how it is done please.
May 28, 2012

methods and analysis of quantitative research
The graduate selection committee wants to select the top 10% of applicants. On a standardized test with a mean of 500 and a standard deviation of 100, what would be the cutoff score for selecting the top 10% of applicants, assuming that the standardized test is normally ...
May 26, 2012

Physics
Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left face of the left block, toward the right ...
May 25, 2012

writing
how could bad therapeutic communication affects a patients outcome?
May 24, 2012

Reimbursement Methodologies
Your're a coder who's reviewing the record of a 62-year-old woman who was admitted to the hospital with shorness of breath and minor ches pain. The doctor diagnosed the patient with Staphylococcus aureus pneumonia and you assigned a code of 482.41. Additionally, you ...
May 21, 2012

Statistics
A researcher found a sample proportion of 0.94 for estimating the population proportion of freshmen at a university who had Facebook accounts. If the standard deviation of the sampling distribution of the sampling proportion is 0.02, what is a 95% confidence interval for the ...
May 18, 2012

Statistics
From random sample of 200 college students, 40 students indicated that they smoke cigarettes. Use the information from the sample to calculate a 95% confidence interval for the population proportion of college students that smoke cigarettes (round to nearest hundredth). A. (0....
May 18, 2012

Statistics
1000 scientists create 95% confidence intervals for parameters of interest. If they all compute the confidence intervals correctly, how many of the intervals would we expect to contain the true population parameter? A. 950 B. 0 C. 95 D. 1000
May 18, 2012

Statistics
Which of the following statements best describes the uncertainty associated with a 95% confidence interval for a population proportion, computed from a simple random sample? A. We don't know whether the particular confidence interval is successful or not, but 95% of ...
May 18, 2012

Statistics
A Gallup Poll reported the percentage of Americans who approve of the President's job performance was 47% with a margin of error of 2 percentage points. What is a 95% confidence interval for the population percentage? A. 41% to 53% B. 45% to 49% C. 46% to 48% D. 43% to 51%
May 18, 2012

Statistics
In a poll of 1,000 adults, 57% believed that there was too much inappropriate content on TV. A 95% confidence interval for the proportion is given as 0.54 to 0.60. What is the margin of error of this poll? A. 0.54 B. 0.015 C 0.03 D. 0.57
May 18, 2012

Math equation
I have no idea how to solve this. f(x)=3x-4 a) f(10) b) f (-2) c) f (0) d) (b)
May 17, 2012

Human Services
develop at least one process evaluation measure and at least one outcome evaluation measure that you suggest for the Consultation and Education department at Greenby Community Mental Health Center to display the program’s effectiveness and efficiency.What issues and ...
May 15, 2012

Math
Sales tax on nonfoor items is 7%. Which equaation shows relationship of the price of item p to the total cost c? p=1.07c c=1.07p p=7c c=7p Why is this the correct one?
May 9, 2012

Physics
A flywheel of a radius .5 m starts from rest and under goes a uniform angular acceleration of 3 rad/sec2 for a period of 5 seconds. Find the angular velocity of the flywheel at the end of this time? Find the angular displacement (in radians) that the wheel turns through during...
May 9, 2012

math
A=1/2bh=1/2 (b)(b+4) 22.5=1/2 (b2+4b) 45=b2+4b b2+4b-45=0 (b-5)(b+9)=0 b-5=0 b=5 h=b+4=5+4=9
May 9, 2012

HUM111
How do you think you can be best prepared and ensure a successful outcome when interviewing someone?
May 7, 2012

Math
A box contains 4 red cubes, 3 blue cubes, 2 green cubes, and 1 yellow cube. You pick two cubes at random, replacing each after you pick. Find the probability of each compound event.
May 2, 2012

Math
The dividend is 5600. The divisor and the quotient have a difference of 10. Write the division sentence
May 1, 2012

phi 103
false
April 30, 2012

algebra
It took a contractor 1285 hours to manufacture their first unit of an item. If the contractor expects to acheive a 92% unit learning curve, how many hours would be required to manufacture units 51-100/
April 27, 2012

history
by 1910, why had public-school enrollment reach a record high a. increased funding for scholarships b. improved conditions in the school c. higher family incomes d. passage of laws requiring attendance
April 26, 2012

Trigonometry
Do I have to solve the right side of the equation first or bring it over to the left side?
April 25, 2012

Trigonometry
Fine the complete exact value of sin x = -sqrt3/2. I'm very lost as to how to even begin this problem.
April 25, 2012

computers
powerpoint presentation assignment how will i explore the role that family and society play in the development of the individual's sense of self.
April 23, 2012

History
The roots of the Iranian hostage crisis resided in: 1. Jimmy Carter’s emphasis on human rights. 2.the Shah of Iran’s despotic regime. 3.economic inflation in the United States. 4. America’s isolationist stance in foreign affairs. I think it's either 3 or 4??
April 23, 2012

Statics
A solid, round simply supported steel shaft has a diameter of 25mm and span length of 500mm. The shaft supports a concentrated load of 3kN at midspan. Calculate the maximum deflection of the shaft.
April 23, 2012

Statics
An aluminum wire has a diameter of d in. Determine the minimum diameter D of the coil in which the wire can be wound without exceeding a bending stress of 30,000psi
April 23, 2012

Algebra 2
The angular speed of a larger pulley wheel (radius=15cm) is 50 rev./min. Find the angular speed of the smaller wheel (radius=6cm).
April 22, 2012

geometry
the volume of a cylinder is 88 m. If the radius of the cylinder is quadrupled, what will be the volume of the new cylinder in cubic meters?
April 22, 2012

Chemistry
ÄH is enthalpy
April 21, 2012

Chemistry
What is the ÄH of CF4 (carbon tetraflouride)? What is the ÄH of HF (hydrogen flouride)? Lastly, what is the ÄH of C2H4 (ethane gas)? Please help.
April 21, 2012

probability
48
April 21, 2012

probability
of the 2598960 different 5 card hands possible from a deck of 52 playing cards, how many would contain all 4 tens?
April 21, 2012

statistics
yes thank you
April 20, 2012

statistics
Using the Chi-square test I am having problems when I get to the part of adding the the fractions and getting the percent that must be rounded to three decimal places. I have looked in the text and searched the internet. Can you please me
April 20, 2012

Math
The answer is some number
April 16, 2012

physics
a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 110 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ? (hint: v0 for the package equals the speed of the helicopter).
April 15, 2012

math
Please explain in detail how to solve this problem: h = -16t^2 + 156t + 105
April 14, 2012

math
Please explain to work this: A rocket is launched from atop a 105-foot cliff with an initial velocity of 156ft/s. the height of the rocket above the ground at time t is given by h= -16t^2 + 156t + 105. When will the rocket hit the ground after it is launched? Round to the ...
April 13, 2012

Stats
A study of the students taking distance learning courses at a university finds that they are mostly older students not living in the university town. Choose a distance learning student at random. Let A be the event that the student is 25 years old or older and B the event that...
April 10, 2012

Physics
Thank you so much, Elena!
April 9, 2012

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