Tuesday
September 2, 2014

Posts by jessica


Total # Posts: 2,580

Calculus AB
Analyze the function ln x=cx^2 to find the unique value of c such that there is exactly one solution to the equation. To do this find the value of c such that both sides of the equation have equivalent slopes at some point; this will give you a proper x-coordinate to work with.
December 13, 2010

APMEH
Thanks
December 13, 2010

APMEH
What does the book mean when they say..."the nobles pushed to reserve appointments to the officer corps of the armies, the bureaucracies,the government ministries, and the church exclusively for nobles"? This is during the 18th century
December 13, 2010

ALGEBRA/please help
I see my mistake. I was supposed to multiply 31 into 4. Thank you so much!
December 13, 2010

ALGEBRA/please help
I must simplify this expression. Am I correct? -4[-25-(9-3)]. I first subtract within the parentheses first -4[-25-(-6)] -4-(-31) = 27
December 13, 2010

French
En quoi se distingue l’anthropologie comme métier de l’anthropologie pratiquée comme une science ? What does this mean?
December 13, 2010

precalculus
how you do you use the power-reducing formula to find the exact value of the trig function: sin^2(37pi/12)
December 12, 2010

ALGEBRA/AM I CORRECT?
thank you so much!
December 11, 2010

ALGEBRA/AM I CORRECT?
OK, I will try this. Please let me know. 39x= -234; Divide by 39 on each side. x = 6. y=40+6(-6); 40+-36 = 4; (6,4)?
December 11, 2010

ALGEBRA/AM I CORRECT?
THANK YOU! Solve by substitution 3x+6y=6; -6x+y=40 My WORK: Y=40+6X; 3X+6(40+6X)=6; 3X+240+36X=6; x=-5.51; y=40+6(-5.51); y=40+-33.06; y=6.94 (-5.51,6.94) Is this right???
December 11, 2010

mATH
what is the decimal notation for 4/9
December 10, 2010

mATH
solve using multiplication principle. -2/7x=6/35
December 10, 2010

mATH
is it 42
December 10, 2010

mATH
42
December 10, 2010

mATH
A bucket has 28 liters of water in it is 2/3 full. How much can it hold?
December 10, 2010

MATH
30
December 10, 2010

MATH
5/6+1/5T=4/6
December 10, 2010

mATH
40
December 10, 2010

mATH
what are the LCM of 8 and 20
December 10, 2010

Business Math
$2.18 isnt a choice. Choices are: A) $1.66 B) $1.98 C) $2.23 D) $2.32
December 10, 2010

Business Math
what do u multiply 1.817*1.2?
December 10, 2010

Business Math
Every week, a grocery store buys 30 gallons of milk at a cost of $1.58 per gallon. The store owner anticipates a 15% spilage rate. To achieve a 20% markup based on cost, what should be the selling price per gallon? Round to nearest cent.
December 10, 2010

Business Math
Laurie expects to make $100,000 in 2007. Her social security tax rate is 6.20% up to the wage base, Medicare is 1.45%. How much FICA is Laurie expected to pay for the year?
December 10, 2010

MATHS
-12.27-0.9b=5.6(b+2.8) -12.27 - 0.9b = 4.6b + 15.68 15.68 - 12.27 = 4.6b + 0.9b 3.41 = 5.5b 3.41/5.5 = b ? = b
December 9, 2010

math
WHAT WAS THE ANSWER
December 9, 2010

math
what am i supposed to be doing?
December 9, 2010

math
solve the equation for b. -12.27-0.9b=5.6(b+2.8)
December 9, 2010

Physics
The length of a simple pendulum is 0.58 m, the pendulum bob has a mass of 285 g, and it is released at an angle of 16 degrees to the vertical. With what frequency does it oscillate?
December 9, 2010

Keyboarding and word processing
You should use your ring finger
December 8, 2010

Chem
Please tell me if these are right! What are the [H3O+] and [OH-] for a solution with the following pH values? a. 10.0 I got 1.0*10^-10 for [H3O+] and 1.0*10^-4 for [OH-] b. 5.0 I got 1.0*10^-5 for [H3O+] and 1.0*10^-9 for [OH-] c. 7.00 I got 1.0*10^-7 for [H3O+] and1.0*10^-7 ...
December 8, 2010

Please Help CHEM
Can you please tell me if these are right? Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+ = 4.2 X 10 ^-3M I got 2.4 C. [H3O+]= 0.0001M I got 4 D. [OH-] = 8.5 X10^-9M I got 5.9 What are the [H3O+] and [OH-] for a solution with the ...
December 7, 2010

math
5x/5=-3x/8+1
December 7, 2010

math
Solve. 2-8x=22
December 7, 2010

Help Chemistry
Help
December 7, 2010

Help Chemistry
Can you please tell me if these are right? Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+ = 4.2 X 10 ^-3M I got 2.4 C. [H3O+]= 0.0001M I got 4 D. [OH-] = 8.5 X10^-9M I got 5.9 What are the [H3O+] and [OH-] for a solution with the ...
December 7, 2010

ALGEBRA/ CONFIRMATION
I am told to graph and write in interval notation for 6 < x < 13. This is my answer (6,13) I would then graph with open ends to show that the endpoints are not included?? Please tell me if I am correct.
December 7, 2010

MATH
Max’s credit card charges him 1.575% interest per month on his average daily balance in that month. Max’s average daily balance for January is $810. What is the interest that he will pay for January
December 7, 2010

MATH
Max’s credit card charges him 1.575% interest per month on his average daily balance in that month. Max’s average daily balance for January is $810. What is the interest that he will pay for January
December 6, 2010

college physics
Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the box will not ...
December 6, 2010

Chem
Please tell me if these are right! 1.How many milliliters of 0.215 M NaOH solution are needed to completely neutralize 2.50 ml of 0.825 M H2SO4 solution? I got 19.2 ml 2. A 10.0-ml sample of vinegar which is an aqueous solution of acetic acid HC2G3O2 requires 16.5 ml of 0.500M...
December 6, 2010

MATH
A dog-food company makes a special kind of dog food. It consists of 30% meat powder and 70% grain. The meat powder costs 90 cents per pound. The grain costs 60 cents per pound. What is the cost of the raw materials per pound of dog food
December 6, 2010

college physics
One cm of a 10-cm-long rod is made of metal, and the rest is wood. The metal has a density of 5000kg/m^3 and the wood has a density of 500kg/m^3. When the rod is set into pure water, the metal part points downward. How much of the rod is underwater?
December 6, 2010

college physics
One cm of a 10-cm-long rod is made of metal, and the rest is wood. The metal has a density of 5000kg/m^3 and the wood has a density of 500kg/m^3. When the rod is set into pure water, the metal part points downward. How much of the rod is underwater?
December 6, 2010

MATH
SO HE STARTED OUT WITH 12?
December 6, 2010

MATH
Allen started out with x marbles. He doubled his number of marbles by buying an additional x marbles from Betty. Then he gave away one-third of all his marbles to his friend Clarence. At the end of the day, he had 16 marbles. How many marbles did he start out with
December 6, 2010

Business
How to develop documentation for Small Business professionals to manage a specific employment position that would assist professionals to choose, train, an develop successful employees toward helping the company meet its goals?
December 5, 2010

physics
what equation would i use if i wanted to find the magnitude for this problem A box of mass 32.0 kg is subject to an applied force (FA) with an elevation angle of 39.9°, and it accelerates to the right at 6.31 m/s2. The horizontal surface has a coefficient of friction μ...
December 5, 2010

English
In Life of Pi, which is the true story? To me, I think the answer can go either way... Can someone help me? :S
December 4, 2010

11th grade
No two anions may be put together in an ionic compound. Cl and Br are both negatively charged. You could put BACl2 for example.
December 3, 2010

PLEASE HELP/ALGEBRA
thank you so much
December 2, 2010

PLEASE HELP/ALGEBRA
Solve by the elimination process: 0.3x - 0.2y = 4; 0.2x + 0.3y = 5/23
December 2, 2010

Math Help please!!
37. Darren worked 28 hours at $3.15 per hour. He made the following tips: $18, $16, $20, $30, and $18. What is his average hourly wage? $58 $20.40 $6.79
December 2, 2010

Algebra
Solve by the elimination process: 0.3x - 0.2y = 4; 0.2x + 0.3y = 5/23
December 2, 2010

Pre- cal Trig
2cos^2x=cosx. Can you subtract the cos from cos^2? Or what would i have to do?
December 2, 2010

algebra
A car generally depreciates 25% of its original value in the first year. A car is worth $27000 after the first year. What was its original cost?
December 1, 2010

physics
In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.900 m away from it. So that she can see the choir, a flat mirror 0.600 m wide is mounted on the south wall, straight in front of ...
November 30, 2010

Chemistry
which is an example of physical change 1.water decomposing into hydrogen and oxygen 2.potassium and bromine combining to form potassium bromide 3.solid ice melting into liquid water 4.none of the above i think its 3.
November 28, 2010

philosophy
"Happiness belongs to the self-sufficient." - Aristotle What does it mean? I don't get it...
November 28, 2010

physics
A laboratory centrifuge on earth makes n rpm (rev/min) and produces an acceleration of 7.00 g at its outer end. What is the acceleration (in g's, i.e., acceleration divided by g) at a point halfway out to the end?
November 27, 2010

physics
A laboratory centrifuge on earth makes n rpm (rev/min) and produces an acceleration of 7.00 g at its outer end. What is the acceleration (in g's, i.e., acceleration divided by g) at a point halfway out to the end?
November 27, 2010

physics
So how do you get the first part? "{
November 26, 2010

medicine
How would you make a 1000ml soln of 5% dextrose in LRS from 100ml of 50% dextrose and 1000ml of LRS
November 26, 2010

Math
The table below gives the educational attainment of the U.S. population 25 years and older since 1960. Males- Percentage with 4 years of highschool 1960 39.5% 1970 51.9% 1980 67.3% 1990 77.7% 2000 84.2% 2004 84.8% Percentage with 4 years of college or more 1960 9.7% 1970 13.5...
November 25, 2010

MATH
Perform the operation for each equation, if there is a solution [4k -8y ] [5k+6y 2k+1] [6z - 3x] - [2z+5x z+4] [2k + 5a] [4k+6a 3a+2]
November 25, 2010

Biology
Thank you
November 24, 2010

Biology
What are the benefits of antibiotic for human being?
November 24, 2010

chemistry
where is 1.155X10^-9 from?
November 23, 2010

chemistry
The Ka of hypochlorous acid (HClO) is 3.0 × 10-8 at 25°C. Calculate the pH of a 0.0385-M hypochlorous acid solution? i got help with this problem, but i dont get where one of the numbers came from (3.4 x 10^-5)??? i tried makeing 3.0 x 10^-8 the x but i still dont ...
November 23, 2010

chemistry
The acid-dissociation constant, Ka, for gallic acid is 4.57 × 10-3. What is the base-dissociation constant, Kb, for gallate ion?
November 23, 2010

chemistry
The pH of a 0.55-M aqueous solution of hypobromous acid, HBrO, at 25°C is 4.48. What is the value of Ka for HBrO? how do you solve for Ka?
November 23, 2010

english 10th
what is a metaphor and hyperbole for the book the Bar Code Rebllion
November 21, 2010

algebra
how do you solve (f+g)(3) let f(x) = x2-2x and g(x)= x-5
November 21, 2010

US History
Evaluate the administrations of Presidents Hayes, Garfield, Arthur, Cleveland, and Harrison in reference to their conceptions of the office and the use of executive power.
November 20, 2010

chemistry
A 47.7-g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this solution.
November 20, 2010

physics
What is the energy in joules of an x-ray photon with wavelength 8.40*10e-10 m? ____J? (b) Convert the energy to electron volts. ___eV ?
November 19, 2010

Rodriguez
How many grams of CO2 will be produced when 29.0g of C3 H8 reacts with extra O2?
November 19, 2010

Calculus
a farmer has 160 ft of fence and wants a pen to adjoin to the whole side of the 130 ft barn. what should the dimensions be for maximum area?
November 18, 2010

Physics
A 70 kg man just before contact with the ground has a speed of 5 m/s In a stiff-legged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the gravity force, find the...
November 18, 2010

physics
what is the symbolic expression for the wavelength ë of a photon in terms of its energy E, Planck's constant h, and the speed of light c.
November 17, 2010

Math
What is the minimum value of the function f(x)= 4x^2+24x+39
November 17, 2010

Algebra
what is the value of k in the equation
November 17, 2010

Algebra
6x^2-11x-10=(3x+2)(2x+k)
November 17, 2010

English
Can you expand more on what you said? sorry..
November 16, 2010

English
Third point: He is from noble family? If I am correct, how does it make him a tragic hero? :/
November 16, 2010

English
How is Hamlet a tragic hero? I have these points 1. tragic flaws 2. he suffered throughout the play 3. ??? I need one more..I can't think of anything... someone help please.
November 16, 2010

Chemistry
If 0.117 mol of argon gas occupies 2.15 L at 725 mmHg, what is the temperature in degrees Celsius? please explain step by step. Thank you so much
November 16, 2010

math
What is the solution of the given equation? 12;8t=96?
November 15, 2010

Business
social dilema, how does I incorporate this. Would this be struggles between emplpyees. that is where i am most confussed on thank you
November 14, 2010

Business
Hiring o Performance evaluations o Discipline o Termination o Diversity o Harassment o Manager as a role model • Write a 1,050- to 1,400-word paper addressing the following points: o Describe the moral and ethical issues faced by managers dealing with your selected topic...
November 14, 2010

science
dormin, i think
November 14, 2010

Physics
As the temperature of an object becomes higher, what happens to the average wavelength of the radiation it emits?
November 13, 2010

Physics
How does the eye adjust the focus of an image on the retina?
November 13, 2010

Physics
A puddle of water (n = 1.33) is covered with a very thin layer of light oil (n = 1.20). What is the minimum thickness the oil in the region that does not reflect light with a wavelength of 550 nm?
November 13, 2010

calculus
thank you
November 12, 2010

calculus
5113
November 12, 2010

calculus
The side of a square are increasing at 2 inches per second. How fast is the diagonal increasing when the side is 3 inches?
November 12, 2010

Linear EQUATIONS
You know I had also approached it this way since I find the tables a bit challenging. May I? 1/5 x; I wanted to choose a multiple of 5 so I chose -15. -15/5 = -3. First pt (-15,-3); Then x = 10; y = 10/5 = 2 Second pt (10, 2). I then chose a third point on the graph just to ...
November 12, 2010

Linear EQUATIONS
Hi bob. The table is what I do not understand. however when x is 0 I believe y is at 0 and if it is does that mean the y intercept is (0,0)?
November 12, 2010

Linear EQUATIONS
Need help! Graph the equation and identify the y intercept. Y = 1/5 x THANK YOU!
November 12, 2010

linear equations
Hold on. I actually need to graph this. What I did was go up vertically to 2 on the y axis, however the graph does not seem to be complete. The second answer for the horizontal line or x axis is (-2,0)?? Could that be correct??
November 11, 2010

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