Saturday

July 26, 2014

July 26, 2014

Total # Posts: 767

**Org Chem **

Caffeine has a distribuation coefficient of about 8 between Me Cl2 and water. Given 30ml of water containing 10 grams of caffeine. a. How much caffeine can be extracted with one 30mL portion of MeCl2? b. How much caffeine can be extracted with three 10mL portions of Me Cl2? c....

**math**

A right cone has a height of 8cm and of volume of 250cm^3. Determine the radius of the base of the cone to the nearest centimeter.

**math**

44

**math**

How much money I saved if I follow this number pattern 5,10,15,?20?30

**troy Academy**

which of the following statements is the best supported by the new studies

**troy Academy**

based on the results of the studies, what should an elementary school teacher do to ensure that a child with an unusual name develops normal intellectual ability

**troy Academy**

the overall effect of the five amendments was to extend the vote to

**troy Academy**

a comparison of the average temperatures on any given day at points Z, X, and U on the globe would probably show that the temperature at point X is

**TROY Academy **

president kennedy was calling on u.s citizens to

**statistics**

It is known that the population mean for the Quantitative section of the GRE is 500, with a standard deviation of 100. In 2006, a sample of 400 students taking the GRE, whose family income was between $70,000 and $80,000, had a quantitative GRE score of 511. Perform a one-tail...

**statistics**

The Good Mental Health Insurance Company has determined the number of new clients a psychologist gets per month and their respective probabilities, as shown in the table below: Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The probability o...

**statistics**

A standardized third grade reading test, called the We Can Read Test, has a mean of 50 with a standard deviation of 10. A developmental psychologist conducts a study, where he assesses the reading ability of a random sample of 75 third graders using the We Can Read Test, and f...

**statistics**

A standardized third grade reading test, called the We Can Read Test, has a mean of 50 with a standard deviation of 10. A developmental psychologist conducts a study, where he assesses the reading ability of a random sample of 75 third graders using the We Can Read Test, and f...

**statistics**

The Good Mental Health Insurance Company has determined the number of new clients a psychologist gets per month and their respective probabilities, as shown in the table below: Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The probability o...

**statistics**

A standardized third grade reading test, called the We Can Read Test, has a mean of 50 with a standard deviation of 10. A developmental psychologist conducts a study, where he assesses the reading ability of a random sample of 75 third graders using the We Can Read Test, and f...

**math**

if a car has decreased in value by 10% and is now worth 22,000.00 how much was the original price

**math-Algebra**

Anonymous: Your answer is INCORRECT. The correct formula is: k=xy k= 8*10 k=80 y=80/x y=80/6 simplify the fraction to y=40/3. I am a homeschool teacher.

**English**

peace I beleive

**math**

k-3/7k=-6/7 3.5+6.4x=x-3.4

**Statistics**

Assume it is known that the probability of birth is equal in all months. What is the probability that in the STAT class of 120 students, exactly 20 students have their birthdays in either August or September? Solve using (i) the exact Binomial distribution, (ii) the Normal ap...

**Math**

Assume an annual 6% return and annual compounding if Tara saves $2000 a year for 40 years how much money would she have at the end?

**math**

Select the sum of the series E^5k=1^k2.

**math**

Select the first five terms in the arithmetic sequence an = 8n, starting with n = 1

**physics**

a 50-N force is directed at an angle of 50 degrees above the horizontal. resolve this force into vertical and horizontal components.

**math**

Determine the equation of g(x) that results from translating the function f(x)=x^2+9 upward 15 units. A)g(x)=(x+24)^2 B)g(x)=(x + 15)^2+9 C)g(x)=x^2-6 D)g(x =x^2+24

**math**

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -6x^2 + 4x + 7.

**math**

Determine the equation of g(x) that results from translating the function f(x) = x^2 + 9 upward 15 units

**math**

f(x) = (x + 2)^2 to the right 12 units

**math**

Solve for in the equation x2 - 3x - 40 = 0.

**math**

Determine the equation of g(x) that results from translating the function f(x) = x^2 + 9 upward 15 units

**math**

The range of f(x) = ax + b is the set of all real numbers given that a and b are real numbers. Which produces a counter example to her statement?

**math**

Write an equation that uses 18 - ? and 10 + 2. Explain how to decide which numbers would make it true.

**Physics**

A car traveling at a velocity of 24 m/s is accelerated uniformly at a rate of 2 m/s¶ for 8 seconds. What is the final velocity of the car?

**Physics**

Police find skid marks 180 meters long on a highway where a car made an emergency stop. Assuming that the deceleration was a = 10 m/s¶ (about the maximum for dry pavement), how fast was the car traveling before the brakes were applied?

**Calculus **

A 17 foot ladder is leaning against a wall. The bottom of the ladder is moving out away from the wall at 0.6 feet per second. The top of the ladder then begins sliding down the wall. How fast is the top of the ladder going when the bottom is 8 feet away from the wall?

**Math**

how did you get BE=32?

**Flowers for Algernon book**

Think about all the times knives or razors appeared in the story. How could they be symbolic?

**Flowers for Algernon**

Explain Charlie's problems with women. Why does he have trouble getting close to them?

**STATISTICS**

79%

**World history**

Well it's definitely not C!!

**accounting**

•The Bank Account as a control device that helps to protect cash. One of the requirements is to conduct periodic bank statement reconciliations. Using the following data, complete a bank statement reconciliation or EEE Electric for the month of September. The Bank stateme...

**accounting**

•XYZ Company signed an 18-month, $20,000, 8% note on June 1, 2006. The amount of interest to be accrued on December 31, 2006, assuming no prior interest entry is:

**economics **

Explain the economic logic behind OPEC decision to reduce output

**Geometry**

What is the perimeter and area of a rectangle that has a width of 6 inches and length of 8 inches

**Math **

The hexagon below is made up of six equilateral triangles with sides of 6 centimeters each. The height of each triangle is 5.2 centimeters. What is the area of the hexagon

**Math**

Do you need to regroup to find product of 34 and 3? Explain

**economics**

What are welfare payments or consumer subsidies?

**physics**

87.34

**english home language literature**

What does the opening sentence imply about Gatsby's parties?

**chemistry**

Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-

**chemistry**

If a solution containing 34.576 g of mercury(II) perchlorate is allowed to react completely with a solution containing 10.872 g of sodium sulfate, how many grams of solid precipitate will be formed?

**chemistry**

Baking soda is sodium bicarbonate, NaHCO3, and vinegar is primarily acetic acid, HC2H3O2. When baking soda is added to vinegar, the resulting reaction produces a tremendous amount of gas, as shown in this video. Complete this equation for the reaction of NaHCO3(s) with HC2H3O2...

**chemistry**

Write the net ionic equation (including phases) that corresponds to Fe(ClO4)2(aq)+Na2S(aq)=FeS(s)+2NaClO4(aq)

**chemistry**

59.0 mL of a 1.40 M solution is diluted to a total volume of 278 mL. A 139-mL portion of that solution is diluted by adding 129 mL of water. What is the final concentration? Assume the volumes are additive.

**chemistry**

Write the balanced chemical equation for the Habor-Bosch process, that is, the combination of nitrogen and hydrogen to form ammonia, NH3. Phase symbols are optional.

**chemistry**

Write the equation for the decomposition of water into its elements. Phase symbols are not graded.

**chemistry**

What NaCl concentration results when 279 mL of a 0.640 M NaCl solution is mixed with 427 mL of a 0.490 M NaCl solution?

**chemistry**

You have 67.0 mL of a 0.400 M stock solution that must be diluted to 0.100 M. Assuming the volumes are additive, how much water should you add?

**math**

the world record for the men's long jump is 29 3/8 feet. the women's record for the same event is 24 88/48 feet. How many feet longer is the men's record?

**economics**

A subsidy is a grant given by one party

**algebra**

So tired of asking for help ane never getting it. Whats the purpose of this site then?

**algebra**

For problems 13 and 14, assign each letter and a blank space to a number as shown by the alphabet table below. Use the code [1,-2_-3,7] encode the phrase "ONE QUESTION TO GO" The matrix C=[1,-2_-3,7] was used to encode a phrase to [7,-28,-25,-35,-2_-21,107,90,123,17]...

**algebra**

For problems 13 and 14, assign each letter and a blank space to a number as shown by the alphabet table below. Use the code [1,-2_-3,7] encode the phrase "ONE QUESTION TO GO" The matrix C=[1,-2_-3,7] was used to encode a phrase to [7,-28,-25,-35,-2_-21,107,90,123,17]...

**algebra**

Ok I see I was not multiplying the right numbers. Thanks for clarifying for me.

**algebra**

Can anyone help explain how to work this problem out? One factor in flood safety along a levee is the area that will absorb water should the levee break. the coordinates that make up the boundry area are (0,0),(2.8,2.1)and(4.3,4.4) what is the area of the land that would abso...

**chemistry**

determine how many grams of N2 are produced by 9.12 g of H2O2 and 6.90 g of N2H4. 2H2O2+N2H4= 4H2O+N2

**American history**

The history of philosophy would describe Immanuel Kant as a (Points : 1) medieval philosopher. contemporary philosopher. modern philosopher. classical philosopher.

**math**

The range of f(x) = ax + b is the set of all real numbers given that a and b are real numbers. Which produces a counter example to her statement?

**Unknow**

And Ms.sue. Your wrong. Cause if the length is 16 then the width is 8 and that will equal 24. Nice try

**Unknow**

Its not a school subject. its college

**Unknow**

A man has a rectangular garden. One length of the garden lies along a patio wall. However the rest of the garden is enclosed by 32 feet of fencing. If the length of the garden is twice its width, what is the area of the garden.

**Algebra**

Can someone please help me with a couple questions? 1)The probability that a dessert sold at a certain cafe contains chocolate is 73%. The probability that a dessert containing chocolate also contains nuts is 25%. Find the probability that a dessert at random contains nuts giv...

**Chemistry**

True or false? The calorie is defined as the amount of energy (heat) required to raise the temperature of one gram of water by one degree Celsius.

**Math**

The outstanding balance on Bill's credit card account is 3690 dollars. The bank issuing the credit card is charging 21 percent of interest per year compounded monthly. If Bill decides to pay off his balance in equal monthly installments at the end of each month for the nex...

**Mathematics of Finance**

Richard borrowed 170000 dollars from his bank to help finance the purchase of a house. The bank charges interest a rate of 8.9 percent per year compounded monthly. Richard has agreed to repay the loan in equal monthly installments over 35 years. a) How much should each payment...

**automotive repair nd maintenance**

how does the two stroke internal combustion engine work...plz explain it....

**math**

find the compound interest on 2650 naria in 5yrs at 7 and half % per annum.

**algebra**

Skip designs tracks for amusement parks. For a new design the track will be ellipitical if the ellipse is placed on a large coordinate grid with its center at (0,0) the equation x^2/2500+y^2/8100=1 model the path of the park.The units are given in yards, how long is the major ...

**algebra**

A conic section has the equation x^2+y^2+12x+8y=48. Determine the following; type of conic, domain and range, axes of symmetry, and center.

**algebra**

How far apart are the foci of an ellipse with a major axis of 26 feet and a minor axis of 24 feet?

**algebra**

An ellipse has foci (0,+-3) and vertices (0,+-4). What is the eccentricity of the ellipse? Please help.

**algebra**

Write an equation for the translation of x^2+y^2=25, by 8 units left and 4 units down. Please help.

**algebra**

A parabolic microphone has a cross-section in the shape of a parabola. The microphone is placed at the focus of the parabola. If the parabola is 20 inches wide and 5 inches deep, how far from the vertex should the microphone be placed? Can someone please help.

**algebra**

Can someone please help... a hyperbola has vertices (+-5,0) and one focus (6,0) what is the standard form equation of the hyperbola.

**agebra**

Can someone please help me.. find an equation that models the path of a satelite if its path is a hyperbola, a=55,000km and c=81,000km assume that the center of the hyperbola is the origin and the tranverse axis is horizontal

**algebra**

find an equation that models the path of a satelite if its path is a hyperbola, a=55,000km and c=81,000km assume that the center of the hyperbola is the origin and the tranverse axis is horizontal

**algebra**

a hyperbola has vertices (+-5,0) and one focus (6,0) what is the standard form equation of the hyperbola.

**algebra**

A few more question Id like for someone to check please. 1) what are the vertex, focus, and directrix of the parabola with the given equation? x^2-8x-28y-124=0 vertex (4,-5) focus (0,7) directrix y=-12 2) write an equation of a circle with given center and radius. center(-7,-6...

**algebra**

Can someone check my answers please and if Im wrong please explain. 1) graph 4x^2+4y^2=64. what are the domain and range? domain;all real numbers range;-4<=4<=4 2) graph 4x^2+y^2=9. what are its lines of symmetry? it has two lines of symmetry, the x axis and the y axis 3...

**algebra**

So x=1/12(y-4)^2+5 would be the answer?

**algebra**

what is an equation of a parobola with the given vertex and focus? vertex(5,4) and focus(8,4) Can someone show me the steps to get the equation please?

**law class**

was the sexual harassment severe in the movie "Boiler Room"?

**algebra**

Can someone check my answers on exploring conic sections? 1. Graph x2 + y2 = 9. What are its lines of symmetry? Every line through the center is a line of symmetry. The y-axis and the x-axis are lines of symmetry.( my choice) Every line through the center is a line of symmetry...

**math**

A ball dropped 16 feet. The height of each bounce of the ball is 8 feet, 4 feet, 2 feet and so on. How high will the sixth bounce be show all of your work

**math**

If there is a pumpkin pie eating contest, how many pumkin pies will they need if 25 people participate and they eat 7/8 of a pie show your work

**algebra**

Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. a) Is the sequence formed by the value at the beginning of each year arithmetic, geometric, or neither? Explain. b) Write an explicit formula to represent the seque...

**algebra**

the first and second is not a possible answer. 1) 1/729 1/243 1/81 1/810

**algebra**

I have 3 questions I need help with. 1) what is the 15th term of the sequence 81,27,9,... 2) what is a possible value for the missing term of the geometric sequence 39,_,975,_ 3) what is the sum of the finite arithmetic series (-5)+0+5+10+..+65

**Math**

A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there? Tennis---2 players Basketball---5 players Softball---10 players

**science**

whats the answer

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