Saturday

May 23, 2015

May 23, 2015

Total # Posts: 637

**Math problems**

solve- 7 x + 2 -- ---- 24 = 12 x over 3 = 224 over 720
*July 8, 2010*

**Calculus**

When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^{1.4}=C where C is a constant. Suppose that at a certain instant the volume is 530 cubic centimeters and the pressure is 97 kPa and is decreasing at a ...
*June 19, 2010*

**us history**

what battle marked the beginnign of U.S involvement in Vietnam
*June 7, 2010*

**Vectors**

If |u| = 10, |v| = 8, and the angle formed between them is 60°, then u · v = .
*May 28, 2010*

**Math**

The probability that a school bus is late is 0.04. How many times would you expect the bus to be late in a 5-week period?
*May 25, 2010*

**Math**

Given the functions f and g below, what is (f o g)(11)? f(x) = x − 20 g(x) = (x − 3)2
*May 25, 2010*

**CALCULUS **

A triangle has verticies A(-2.1,3), B(7,8,-4), and C(5,0,2). Determine the area of triangle ABC.
*May 23, 2010*

**calc **

A parallelogram has area 85cm squared. The side lengths are 10 cm and 9 cm. What are the measures of the interior angles?
*May 23, 2010*

**algebra 2**

There are twenty songs from which a disc jockey can chose five to play on her program. How many different arrangements of songs are possible for the program? Please check my work 20x19x18x17x16
*May 21, 2010*

**algebra 2**

Which should be used a permutation or combination? Determine the number of different ways in which a committee of four can be chosen from a group of twelve members?
*May 21, 2010*

**algebra 2**

In how many different ways can you roll doubles in a monopoly game when you use two die?
*May 21, 2010*

**algebra 2**

if the answer has to be a fraction what would the correct answer be?
*May 21, 2010*

**algebra 2**

You roll a red die and a green die. Find the probability of rolling a four on the red die and a three on the green die.
*May 21, 2010*

**algebra 2**

If a McBurger employee is expected to work four of the seven days in a week, how many different weekly schedules are possible for the employee?
*May 21, 2010*

**algebra 2**

A caterer offers a choice of five desserts from a list of eight for the dessert bar at the prom. How many different groups of desserts could be served?
*May 21, 2010*

**algebra 2**

The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees
*May 21, 2010*

**algebra 2**

Two cards are randomly drawn from a standard deck replacing the card after the first draw. Find the probability of drawing a Jack followed by an Ace.
*May 21, 2010*

**algebra 2**

The bag contains three red marbles, two blue marbles, and seven yellow marbles. Two marbles are randomly drawn from the bag. What is the probability of drawing a blue marble, replacing it, and then drawing a blue marble?
*May 21, 2010*

**algebra 2**

Two cards are randomly drawn from a standard deck without replacing the card after the first draw. Find the probability of drawing a spade followed by a heart. Please type your answer as a fraction.
*May 21, 2010*

**7th grade math**

stupids
*May 12, 2010*

**Economics**

In general terms, national fiscal policy refers to the way in which a government’s spending and taxation policies are able to influence the economy. Governments tend to use fiscal policy to control aggregate demand, price stability, economic growth and employment. Fiscal ...
*May 7, 2010*

**1st grade math**

4x5 5x4 10x2t5 5t10x2
*April 8, 2010*

**corporate finance**

Another option discussed by Tom, Jessica and Nolan would be to begin a regular dividend payment to shareholders. how would you evaluate this proposal?
*April 5, 2010*

**Physics**

Explain how the following changes in a reaction conditions will affect the position of the equilibrium below. A (g) + B (aq) C (s) + heat 1. The temperature of reaction is raised by 20 degrees C 2. As the reacton progresses, more of the compound B is added to the reaction ...
*March 31, 2010*

**physics**

A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^-27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum displacement. b) ...
*March 30, 2010*

**physical**

A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^-27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum displacement. b) ...
*March 30, 2010*

**Chemistry**

A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 <----> N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2 N2 and H20
*March 29, 2010*

**Chemistry**

A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 <----> N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2 N2 and H20
*March 29, 2010*

**8th grade litrature**

literary terms in wreck of the hesperus
*March 11, 2010*

**math**

Mudder nature
*March 9, 2010*

**MATH214**

.022508352%
*March 3, 2010*

**MATH214**

2.3cm^3
*March 3, 2010*

**Calculus**

A large tank is filled with 200 gallons of pure water. Brine containing 1 pound of salt per gallon is pumped into the tank at the rate of 5 gallon per minute. The well-mixed solution is pumped out at the same rate. (a) Find the number A(t) of pounds of salt in the tank at any ...
*November 23, 2009*

**8th grade**

how do I balance equasions in science?
*November 22, 2009*

**Math**

How do you do arrays and an expanded algorithm. 23 X 17?
*November 16, 2009*

**calculus**

The critical numbers are the values for x in which the function has a horizontal tangent line, so where the first derivative is zero. F1(x)=12x^2-72x+96 0=12x^2-72x+96 0= x^2-6x+8 0=(x-4)(x-2) The critical numbers are x=4 and x=2
*November 9, 2009*

**math**

the total cost of hiring a certain plumber is a flat rate of $35 plus $9.50/hr.Write an equation that shows the relationship between the quantities.
*November 3, 2009*

**calculus - antiderivative**

can someone help me find the antiderivative of: f'(x) = (x^2-1)/x where f(1)=1/2, and f(-1) = 0 Thanks!
*November 3, 2009*

**math**

identify the slope and the y-intercept for 5x + 20y = 60
*November 2, 2009*

**Geography**

I Believe U Should get a fairly decent grade
*October 24, 2009*

**spanish**

What Does This MEan?? te llams me gusta comer es coreer
*October 24, 2009*

**pre calc**

your answer is wrong.... redo the problem and move 1.5 and make it 5.125
*October 24, 2009*

**math**

no i knew that part its the rest
*October 22, 2009*

**math**

Two corresponding sides of similar polygons are in the ratio of 8:7. If the area of the smaller figure is 512 square meters, what is the area of the larger figure?
*October 22, 2009*

**calculus**

thanks for the reply... the question asks me to evaluate the limit using continuity, how do i justify my answer with continuity?
*October 13, 2009*

**calculus**

just wondering if someoen could help me with this limit..: lim arctan[(x^2 - 4)/(3x^2-6x)] x->2
*October 13, 2009*

**math**

It is a square. B) Its angles are not all congruent. C) Its diagonals are perpendicular bisectors of each other. D) None of the above
*October 8, 2009*

**math**

Suppose that a given parallelogram is not a rhombus or a rectangle. Which of the following can you conclude about this parallelogram?
*October 8, 2009*

**math**

True or false? In every triangle, the centroid, incenter, and circumcenter are collinear.
*October 8, 2009*

**math**

What is the difference between convex polygon and non convex polygon
*October 7, 2009*

**math**

Explain the difference between the following pairs of geometric figures: a simple closed curve and a nonsimple closed curve a convex polygon and a nonconvex polygon
*October 7, 2009*

**calculus - limits**

can someone help me determine that limit for the following function, as x --> -2? 2 - abs(x) / 2 + x
*October 4, 2009*

**Chem Please HELP!!!!!!!!!!!!!!!**

Which of the following bonding patterns DOES NOT happen? C-H-C =C= H-H All of these bonding patterns can happen.
*September 30, 2009*

**math**

A class elects two officers, a president and a secretary/ treasurer, from its 12 members. How many different ways can these two offices be filled from the members of the class?
*September 28, 2009*

**math**

Suppose that an experiment has four possible outcomes: A, B, C, and D. If P(A) = P(B) = P(C) and P(D) = 2P(A), what is the probability of each event?
*September 26, 2009*

**math**

The same car at three different dealerships had a median price of $14,833.02. The mean price was $14,544.43 and the range of prices was $1476.24. What were the three prices?
*September 24, 2009*

**math**

84% of what number is 100
*September 10, 2009*

**math**

For a set of scores, will the interquartile range always be less than the range? Explain your answer with an example.
*August 5, 2009*

**math**

Suppose that you are the chief of maintenance for a large metropolitan hospital. You are trying to decide from what company to buy your next 5-year supply of light bulbs. Would you look to the company whose light bulbs have the greatest mean or the greatest median life? ...
*August 5, 2009*

**math**

Convert to standard notation 4.296 × 10^-5
*July 20, 2009*

**math**

Write the number in scientific notation. 0.000209 8,724,000,000
*July 19, 2009*

**math**

do you think you could explain to me which of these are not a function and why? 1.{(x,y)|y=cosx} 2.{(x,y)|x=y} 3. {(x,y)|y=3^x} 4.{(x,y)|x=3}
*July 19, 2009*

**math**

(x^n)/y^(1/2)
*July 19, 2009*

**math**

Can a percent of increase be more than 100%? Why or why not?
*July 14, 2009*

**elementry math**

Find the LCM of the numbers 24 and 32 by using the prime factorization method.
*June 22, 2009*

**math**

Find the LCM of the numbers 24 and 32 by using a. the listing multiples method.
*June 22, 2009*

**math**

You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2 to power 2 3 to power 3 Then increase each ...
*June 22, 2009*

**math**

You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2 to power 2 3 to power 3 Then increase each ...
*June 22, 2009*

**math**

i do but i get 51 and that is not a choice for an answer so i didnt know if the average had soemthing to do with it
*June 17, 2009*

**math**

10) A mobile library has 1122 books in its collection. If there are 22 shelves in the library, then how many books, on average, are stacked on each shelf?
*June 17, 2009*

**math**

Use front-end estimation with or without adjustment as indicated to find the value of the expression. 4) 10,656 - 3967 (with adjustment)
*June 17, 2009*

**ALgebra**

A spinner has five regions numbered 1 through 5. If the spinner is spun 100 times, we would expect about 20 of the outcomes to be Region 1. It can be determined that the spinner is unbalanced if x, the number of outcomes that result in Region 1, satisfies x-20/4 ¡Ý...
*May 18, 2009*

**social studies**

who was the leader of the first permanent colony?
*April 21, 2009*

**Business Communication**

what is an example of a nonprogrammed decision for clothing manufacturer is
*March 31, 2009*

**9th grade**

wat jessica said buddy
*February 27, 2009*

**Chemistry**

Steiger nei von streiger sneiten mehr ruellen toft don wulka
*February 11, 2009*

**Algrebra**

How do i factor this? t2-16t+64
*January 22, 2009*

**Algebra**

How do i factor this? t2-16t+64
*January 22, 2009*

**SKILLS FOR THE EFFECTIVE TEACHER AIDE**

According to the Jo-Hari window model, what are hidden messages? A. Something that the sender knows and communicates to the receiver B. Something that the sender knows but doesn't communicate to the receiver C. Something that the sender hints to the receiver so he or she ...
*January 9, 2009*

**help me unscramble this word**

ouonterissl
*December 15, 2008*

**Research Project on Computer Confidentiality**

Well I feel better knowing I'm not the only one fed up with this. Stretching a yes or no answer is rough and the only help I found for any references is my Medical Assisting textbook, HIPAA, and common sense. Also found info from Google concerning Clinton's health ...
*November 12, 2008*

**Science**

How do you think the changing environment of the earth influenced the adaptations that allowed a class of vertebrates to thrive?
*November 5, 2008*

**college psyc. statistic**

Final Part of the problem: Find a) sY-Ŷ. , b) covXY., and c) the equation for the regression line. Round to three decimal places.
*November 2, 2008*

**college psyc. statistic**

A psychology student wanted to examine the value of predicting GPAs based on IQ scores. She recruited undergraduate students enrolled in an introductory psychology class and administered the IQ test (M = 100.260, SD = 12.985) and requested their GPAs from the registrar’s ...
*November 2, 2008*

**Social Studies**

what is representative assembly
*October 28, 2008*

**social studies**

Should a representative always do what his or her constituents voters want?
*October 22, 2008*

**Probability of Mean (Statistics)**

Assume 20 oz. cola bottles are filled so that the mean amount of liquid contained in the bottle is 20 oz and the standard deviation is .12 oz. If a case of 24 bottles is randomly selected from the population of all soda bottles, find the probability that the mean number of ...
*June 22, 2008*

**Probability/Statistics**

Assume 20 oz. cola bottles are filled so that the mean amount of liquid contained in the bottle is 20 oz and the standard deviation is .12 oz. If a bottle is randomly selected, find the probability that the number of ounces in that bottle is greater than 20.21 oz.
*June 21, 2008*

**algebra**

Find 1 - (g o f)(x) and simplify
*June 3, 2008*

**algebra**

Please show that 1/(g o f)(x) - 1-(g o f)(x)/(g o f)(x) = 1
*June 2, 2008*

**algebra**

Find (g 0 f)(x) when f(x) = cos x , and g(x) = x^2
*June 2, 2008*

**math (vectors)**

calculate the length of AN if a{6} {2} and b= {1} {2} Is it 6^2+4^2 36+16=52 square root of 52+7.211
*May 23, 2008*

**Chemistry**

quit asking so many questions
*May 12, 2008*

**chemistry**

Products are often marketed as "organic" or "natural". What do these terms mean when applied to consumer goods? Discuss how these terms may be used to mislead a public that is not knowledgeable in chemistry. Support your opinion with references.
*May 12, 2008*

**Physics**

I have to find the eccentricity of an elliptical orbit with one focus, earth's center, E. I know the formula to find eccentricity is sqrt(1-)(b^2/a^2), but I don't know where to use the radius or if I need it. Do I just need to use the eccentricity formula to find it? ...
*April 22, 2008*

**math**

wtite 3x^2 +8x-25 in the fomr a(x+h)^2+k, where a,h and k are real numbers
*April 7, 2008*

**Physics**

A person eats a container of yogurt. The Nutritional Facts label states that it contains 195 Calories (1 Calorie = 4186 J). What mass of perspiration would one have to lose to get rid of this energy? At body temperature, the latent heat of vaporizaiton of water is 2.42 106 J/kg.
*April 6, 2008*

**Managerial ECON**

Suppose that a firm is currently employing 20 workers, the only variable input, at a wage rate of $60. The average product of labor is 30, the last worker added 12 units to total output, and total fixed cost is $3,600. a. What is marginal cost? b. What is average variable cost...
*April 5, 2008*

**chemistry**

When carbon dioxide is heated in a closed container, it decomposes into carbon monoxide and oxygen according to the following equilibrium equation: 2CO2(g) ---> 2CO(g) + O2(g) When 2.0 mol of CO2(g) is placed in a 5.0-L closed container andheated to a particular temperature...
*March 30, 2008*

**math**

what is 15 R on a S T
*March 22, 2008*