Thursday
December 18, 2014

Total # Posts: 270

chemistry
A small lake contains 0.0500 mi3 of water [H2O]. If the density of water is 1.000 g/mL, determine the volume (in gal) of water in the lake.
September 8, 2011

Math Help
When asked for standard deviation when dealing with grouped data for linear regression, do you give them for each the x and y variable or is there a way to configure for grouped data set? I have a Ti 84 plus calculator
August 12, 2011

Stats
The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond. A sample of the weights of 40 trout revealed that the mean weight is 402.7 grams and the standatd deviation 8alE8 gr. What is the probability that the mean weight for a sample of 40...
June 10, 2011

Calculus
The table didn't turn out 0, goes with 0 underneath. 1 goes with 45.2 3 goes with 96.3 8 goes with 178.2 20 goes with 254.3 40 goes with 380.5
May 9, 2011

Calculus
A radar gun was used to record the speed of a racecar during the first 40 seconds while driving on a straight road. Use the chart to calculate the car's distance after 40 seconds using righthand sums. Is this an over or underestimate? Justify the answer. This is the table ...
May 9, 2011

social study
what made the hbc and nwc so imortant to this reion
May 8, 2011

marketing
Some firms are too production-oriented and inefficient. That can result in customers who are not satisfied and micro-marketing that can cost too much. Identify and explain at least three reasons for these marketing inefficiencies.
May 6, 2011

Basic Marketing
so much for trying to get a little help on which direction to go. I didn't want a full answer just sometips of where to do some research.
May 6, 2011

Basic Marketing
A large number of forces shape the marketing environment. The technological environment is one of the most important today. Discuss the impact of technology on marketing including, the opportunities, challenges and ethical issues technology poses for marketing.
May 6, 2011

chemistary
Explain the words element compound and mixture. Identify which substances ara element compound and mixture
May 4, 2011

vocab
Directions: Use the underlined etymology clues to help you choose the correct word that is missing from each of the following sentences. 3. The [underlined](Middle English, from Old French boc, "male goat")[/underlined] had a physically demanding job. A. son B. ...
April 25, 2011

Physics
a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?
April 25, 2011

Physics
a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?
April 25, 2011

math
a vector has a magnitude of 18.3 cm and a direction of 38 degrees. find the magnitude of its vertical and horizontal components to the nearest tenth.
April 19, 2011

Geometry
In the accompanying diagram, ABC and AB are congruent to BC. If the coordinates of C are (2,3) and the coordinates of B are (0,0), find the coordinates of A.
April 7, 2011

Chemistry
how do you compensate for coefficents while using a BCA chart? I know that you have to while using an ICE chart by multiplying by 2 when the coefficient is 2 etc, so thats why I was wondering...
March 24, 2011

earth
How many minutes does it take for light from the sun to reach the earth?
March 22, 2011

Algebra 1
To train for a race, Will begins by jogging 11 minutes one day per week. He increases his jogging time by 5 minutes each week. Write the general term of this arithmetic sequence, and find how many whole weeks it takes for him to reach a jogging time of one hour
March 7, 2011

Algebra 1
Evaluate the given binomial coefficient ( 8 ) 4
March 7, 2011

Alegbra 1
The function A = A0e-0.01386x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 500 pounds of the material are initially put into the vault, how many pounds ...
March 7, 2011

Algebra
Solve the problem. A salesperson gets a commission of \$600 for the first \$10,000 of sales, and then \$300 for each additional \$10,000 or partial of sales. Let S(x) represent the commission on x dollars of sales. Find the value of S(45,000)
February 27, 2011

Algebra 1
Larry has \$2600 to invest and needs \$3000 in 11 years. What annual rate of return will he need to get in order to accomplish his goal, if interest is compounded continuously?
February 22, 2011

Algebra 1
Use Cramer's rule to solve the system. -2x - 2y = -16 2x + 3y = 23
February 18, 2011

Algebra 1-Matrix
In a certain county the proportion of voters in each age group registerd as Republicans and Democrats or Indpendence is given by the following matrix which is called A. 18-30 31-50 Over50 Republican 0.40 0.30 0.70 Democrat 0.30 0.60 0.25 Indpendent 0.30 0.10 0.05 The ...
February 18, 2011

math
factor y^2-81 (y+9)(y-9) have i factored it correct?
January 19, 2011

Math
Solve by using the multiplication principle -2x> 1 over 9 I have tried this problem and can get no where with it can someone please help me????
January 19, 2011

College Algebra
f(x)=3.1ã(x+19 1.Decribe the graph be obtained using transformations of the square root function. First, vertically stretch the graph of f (x) = by the factor 3.1; then shift the results up 19 units. 2.Determine how to tell the model describes the actual height of...
January 14, 2011

English1
Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the children’s homework, ...
January 5, 2011

English 1
Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the children’s homework, ...
January 5, 2011

English 1
Underline the correct pronoun in parentheses. 1. Many so-called Founding Fathers are famous one or two of (his, his or her, their) accomplishments, but anyone who knows (his, his or her, their) history knows that Franklin is known for many things, including (his, her, his or ...
January 5, 2011

English 1
Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the children’s homework, ...
January 4, 2011

English 1
Combine each set of sentences into one sentences so that it contains two independent clauses. Use a semicolon correctly between the two clauses. 1. Tesla was born in what is now Croatia and studied at the Technical University at Graz, Austria. He excelled in physics, ...
January 4, 2011

English 1
1. Many so-called Founding Fathers are famous one or two of (his, his or her, their) accomplishments, but anyone who knows (his, his or her, their) history knows that Franklin is known for many things, including (his, her, his or her, their) inventions. their, his or her, ...
January 4, 2011

Humanities
how does humanities differ from Middle Ages to contemporary times.
January 4, 2011

Physics
162.533N
December 20, 2010

Social Studies
What are 6 significant events important to Americans that occurred during World War II?
December 10, 2010

physics
Henry drives off a 200m high cliff at 132m/s.How far out,how far down,and how far all together did he travel in 2.6seconds
December 2, 2010

physical science
a 2.0 kg rock sits on the edge of a cliff 12m above the beach. The rock falls off the cliff. How much kinetic energy will it have just before it hits the beach?
November 22, 2010

cmo155
Students are often confused about the use of the words good and well in their writing. Write a 100-word passage to Susan Anker, the author of the course’s textbook, in which you describe five details from her book that are good and five details about the book that are ...
November 16, 2010

chem
Which has highest boiling point? H20, H2S, H2Se, H2Te i know its H20, but why? is it because its dipole dipole? does it have to do with electronegative, or polarity?
October 11, 2010

spanish
Look at your conjugations yo- pienso tu- piensas el/ella/ud.- piensa nosotros- pensamos ellos(as)/uds.- piensan Tu would be piensas
September 9, 2010

Math
When would you make a list to sove a problem?
September 2, 2010

us history
where can i go to read a text book if i forgot it at school
August 26, 2010

math
figured it out on my own thnx
August 19, 2010

math
find a 9 digit # that fits. the first3 #'s equal 1/3 of the last 3. The middle 3 #'s are the result of subtracting the first 3 from the last 3. All the digits from 1-9 are used only once. What is the number
August 19, 2010

Science
Easy! Metabolism is the rate of how fast your food digests
July 26, 2010

History 1301
July 19, 2010

Environmental Science
Hi Had a look at the sites, couldn't find any help. Do you know about IPCC? Cheers Brad
July 12, 2010

Environmental Science
Hi does anyone know how to calculate the UN's de facto temperature target using max co2 relative to 2008 that can be in the atmpsphere to the nearest Gtc? please
July 12, 2010

physics
A bowling ball weighing 71.2 is attached to the ceiling by a 3.90 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.20 .
June 15, 2010

science
a balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa?
May 20, 2010

math
From the information you've given, the only thing i can come up with is that the animals cost one dollar each since it's 100 dollars for 100 animals
May 18, 2010

physics
when you connect an unknown resistor across the terminals of a 1.50 V AAA battery having a negligible internal resistance, you measure a current of 18.0 mA flowing through it .A)what is the resistance of the resistor. B) if you now place the resistor across the terminals of a ...
May 11, 2010

physics
a 40.0 ohm resistor and a 90.0 ohm resistor are connected in parallel, and the combination is connected across a 120 V dc line. A)what is the resistance of the parallel combination. B)what is the total current through the parallel combination. C)what is the current through ...
May 11, 2010

physics
a piece of wire has a resistance of R , it is cut into three pieces of equal length,and the pieces are twisted together parallel to each other. what is the resistance of the resulting wire in terms of R
May 11, 2010

physics
a 500.0 ohm resistor is connected in a series with a capacitor.what must be the capacitance of the capacitor to produce a time constant of 2.00 s
May 11, 2010

physics
a 1.5 kg box moves back and forth on a horizontal frictionless surface between two different springs. the box is initially pressed against the stronger spring compressing it 4.0 cm , and then is released from rest,A) by how much will the box compress the weaker spring,B) what ...
April 27, 2010

chemistry
what is the molar concentration of an aqueous NaOH solution when 45.0 grams are dissolved in water to make 100mL of solution
April 27, 2010

chemistry
Write a net equation for the reaction between aqueous solutions of Na2HPO4 and H2CO3.
April 26, 2010

Algebra
Without writing them all out, what is the number of subsets of set A = {tongue, ear, mouth, eye, nose, cheek, forehead, neck, shoulder}?
April 15, 2010

physics
Bumpers on cars are not of much use in a collision. To see why, calculate the average force a bumper would have to exert if it brought a 1200 kg car (a so-called "compact" model) to a rest in 15 cm when the car had an initial speed of 2 m/s (about 4.5 mph). Bumpers ...
April 14, 2010

Physical Chemistry
For part A, I'm plugging into the Arrhenius equation, ignoring A, and then dividing the 2 rates for each activation energy. I'm getting 1.027 for my particular set of numbers (Ea = 120 & 56) @ 293K. This isn't correct though.
April 1, 2010

geometry
What is the volume of a cone with a radius of 3 and a height of 19?
March 16, 2010

trig
how do you simplify "[sin(x)+tan(x)]/[1+sec(X)]"
March 15, 2010

Physics
An arrow is shot from the top of a building (height of 30 meters). The arrow travels 100 meters in the horizontal direction from the base of the building to the point where it hits the ground in 4 seconds. Find the angle of release, actual velocity at release, and maximum ...
February 22, 2010

physics
Also, I found horizontal velocity = 25m/s, but I don't know where to go from there.
February 22, 2010

physics
An arrow is shot from the top of a building (height of 30 meters). The arrow travels 100 meters in the horizontal direction from the base of the building to the point where it hits the ground in 4 seconds. Find the angle of release, actual velocity at release, and maximum ...
February 22, 2010

survey math
11110 base 2 = (?) base 10
February 19, 2010

Math
What do you mean?
February 5, 2010

Math
Solve each literal equation for the indicated variable 2x-3y=4 for x The answer is suppose to be x=3/2y+2 I don't understand how you do this problem?
February 5, 2010

Math
Solve each literal equation for the indicated variable. 4x-5y=10 for y (the answer is y=4/5x-2) How do you solve this?
February 5, 2010

Physics II
A block begins to slide down a ramp after being elevated to an angle of 55 degrees. What is the coefficient of static friction?
February 2, 2010

how the tone and purpose of each essay is different?
December 21, 2009

Write an essay comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz.In your paragraph, explain how the tone and purpose of each essay is different. Support your argument with at least one example from each essay.
December 21, 2009

calculus
find the general solution x^2-2(e^y)dy/dx = y^3+e(x^2) iam getting the y^3 dx when i do seperation of variables how do i deal with this.
December 16, 2009

calculus
find the general solution x^2-2(e^y)dy/dx = y^3+e(x^2) iam getting the y^3 dx when i do seperation of variables how do i deal with this.
December 16, 2009

math
I'm thinking of TWO numbers between 1 and 4 and so are you, what are the odds that we will have ATLEAST 1 number in common?
December 13, 2009

heterozygous dominant
December 13, 2009

Calc
Express the integral as a limit of Riemann sums. Do not evaluate the limit. ∫_1^3 x/(2+x^5) Ans: lim(n→∞)∑_(i=1)^n ?
December 12, 2009

spanish 2
doblar- to turn conducir- to drive derecho-right izquierdo-left la esquina- corner la calle- street el coche/carro-car la ciudad- city el pueblo- town pasar-to pass parar- to stop el cinturon de seguridad- seatbelt la tienda-store el supermercado- supermarket la iglesia- ...
December 4, 2009

math
add 5/4x and 1/8x then u get 11/8=11/8+x subtract 11/8 to the other side which leaves 0=x
November 17, 2009

Economics
Suppose that a movie theater owner faces the demand curve given by P=10-.001Q where P is the price of a ticket in dollars and Q is the number of tickets sold per week. Suppose that all the cost associated with the theater other than film costs do not vary with the number of ...
November 14, 2009

spanish
despues de las clases= after the classes me gusta= i like
November 12, 2009

math
how do use approximation to tell which fraction is greater
November 11, 2009

law ethics in medicine
I work in a hospital and have to be trained in HIPAA. Every employee in a hospital that has access to patient info has to be trained since HIPAA has to do with patient confidentiality
November 7, 2009

Creative Writing
you want something thats going to grab the readers attention. That the point of it. Think of a sentence that defines your topic and grabs my attention
October 12, 2009

Geography
October 11, 2009

physics
thanks! I forgot the formula >.<
October 7, 2009

physics
How does one go about solving this? A skateboard rider starts from rest and accelerates at a constant +.50 m/s^2 for 8.4s. What is the riders displacement?
October 7, 2009

Calculus
Basically its x+3=3x-5 so subtract x from 3 which gives u 2x then add 5 to the other 3 to balance it out which leaves u 2x=8. Divide each side by 2 and ur g is 4
September 28, 2009

Physiology
the mechanisms responsible for triggering cardiac hypertrophy are still a mystery. Hypothesize about possible signals and the steps that might be involved to cause postprandial cardiac hypertrophy in pythons.
June 24, 2009

Physiology
The amount of DNA (measured in ng per mg ventricle) decreased. One nucleus is present in each vertebrate myocardial cell (each cell is mononucleated). Explain how it is possible that a decrease in mass-specific DNA concentration indicates growth of ventricular tissue.
June 24, 2009

Physiology
Of what physiological advantage would increased stroke volume (and its related effect on cardiac output) be to an animal that just ate a meal?
June 24, 2009

Math
I need to find the vertex and make a graph using quadratics. y=xsquared+11x+10
May 5, 2009

chemistry
i just have a question about le chatelier's principle lets say you have: A(g) + B(s) --> C(g) + D(g) does adding more of B which is a solid shift it to the right? or will it have no effect because it is a solid? thanks
April 19, 2009

To: Reiny
I don't understand how there would be 48 cards left if you took out 3 cards, wouldn't you have 49 cards?
April 11, 2009

MATH
what is the probability of getting 3 of a kind in poker? 3 of a kind is: Any three cards of the same rank with two other different cards. I know the answer it suppose to be 54912/2598960 But how do you get that?
April 11, 2009

MATH
what is the probability of getting a royal flush in poker? I realize it is 4/C(52,5), but what are the combinations for the numerator?
April 10, 2009

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