Friday
August 29, 2014

Posts by June


Total # Posts: 126

statistics
Wages and salaries make up only part of a total compensation. Other parts include paid leave, health insurance, and many others. In 2007, wages and salaries among manufacturers in the United States made up an average of 65.8% of total compensation. To determine if this changed...
July 20, 2014

chemistry
29.8 ml of ethanol (density = 0.789 g/ ml) initially at 9.9 degree celsius is mixed with 33.8 mL of water (density = 1.0 g/mL) initially at 27.8 degree celcius in an insulated beaker. Assuming that no heat is lost, what is the final temperature of mixture? How do I start this ...
June 22, 2014

statistics
It has been suggested that the rate of forgetting (coded as normal vs. fast) for word lists often used in psychological experiments may depend on the type of memory test employed, either free-recall or recognition. What is the best way to test this hypothesis? a. regression b...
May 3, 2014

Calculus
Can you tell me if im doing this right? Find the volume of the region obtained by revolving the area below about the line x=3. y=x3, x=2, y=0 v=pi[2,0] (x^3)^3dx= pi[2,0] x^9 v=pi/10 x^10(2,0)= 1024/10 pi
March 11, 2014

Calculus
Can someone help me with finding the derivative of this function? y = -( csc x)2 (cos-1(1-x2))
March 11, 2014

ASCC
a car moving at 25m/s undergoes an acceleration of -2.3m/s. calculate a) the time needed to stop this car and b) the distance the car will travel before stopping.
March 6, 2014

Algebra
Thank you so much!
March 4, 2014

Algebra
Mr. Bailey mowed his yard in 90 minutes. His son Roy mows the yard in 75 minutes. How long will it take them if they work together (using 2 lawn mowers)? How to set up an equation? Thank you.
March 4, 2014

basic algebra
Thank you very much for all your great help! Once again, thank.
March 4, 2014

Algebra
Thank you.
March 4, 2014

Algebra
Bill drives his car 10 mph faster on the way home from work than he does going to work in rush hour. If it takes him 1 hrs. going and half an hour returning, how far away is his work?
March 4, 2014

physics
what is the mass of a vehicle traveling at 25 km/hr with a kinetic energy equal to 1 x 10 to the 4th power J?
February 11, 2014

mental health counseling
Authentic and performance assessments strive for greater realism and complexity of tasks under the premise that real-life problems can often be solved ______________.
November 24, 2013

math
Lane French had a bad credit rating and went to a local cash center. He took out a $100 loan payable in two weeks at $115.
November 12, 2013

chemistry
You dissolved 450.0 g of sugar (C12H22O11) in 150 mL of water. The density of water is 1.00 g/mL a. calculate the molarity of the solution b. calculate the molality of the solution
November 7, 2013

CHEMISTRY
In my lab report, I am asked to "Find the solubility of Ca(OH)2 in H2O as the temperature increases. Explain (in terms of energy) the reasons for this trend." From what I have found, Ca(OH)2's solubility goes down, but I have no idea why! It isn't a gas... it...
October 26, 2013

Chemistry (URGENT)
Oh my gosh, thank you SO MUCH Dr. Bob! You are a life saver.
October 25, 2013

Chemistry (URGENT)
Hello! Does anyone know where to find the solubility of Ca(OH)2 in water as temperature changes? I need this information to answer the discussion in a lab report.
October 25, 2013

ap history
to what extent did populists continue to focus on grievances of earlier movements?
September 16, 2013

life orientation
provide recommendations on how to address substance abuse
May 21, 2013

Math
19. A family takes a car trip. They travel for an hour at 80 km/h and then for 2 hours at 40 km/h. Find the average speed. (Hint, Remember to consider the total distance and the total amount of time.)
April 26, 2013

calculus
Suppose that x=x(t) and y=y(t) are both functions of t. If x^2+y^2=26 and dx/dt=−2 when x=1 and y=5, what is dy/dt? help??????
April 15, 2013

Math
x+(x+2)+(x+4)=39 because the first side is x, the next side has to be 2 more than x, and the third 4 more than x 3x+6=39 take it from here
January 3, 2013

Math
x is measure of one angle 2x-21 is measure of other x+2x-21=90 3x-21=90 3x=111 you go from here
January 3, 2013

Math
There might be an easier way but here how I did it. 4x(.05)+.10x=2.40 .2x+.10x=2.40 .3x=2.40 divide both sides by .3 x=8 so ther are 8 dimes and 32 nickels
January 3, 2013

math
show 7 two different ways
December 31, 2012

Mathvo -
i think it means xi less then or equal to -2
December 13, 2012

Mathv
4. Graph the inequality: x ≤ –2 (1 point)
December 13, 2012

Division of Fractions
18 divided over 3/5 =18 x 5/3
December 3, 2012

calculus
Compute each of the following limits if they exist. lim 3x^(2)-x-2 x->2 lim (x^(2)+x-6)/(x-2) x->2
October 26, 2012

educational research
I so overwhelm and lost at the moment. Summarize and complete an annotated bibliography of at least ten (10) scholarly sources that pertain to your research topic. This annotated bibliography should be a minimum of five pages in length, excluding title and reference pages. ...
October 1, 2012

Economics
A B
September 9, 2012

chemistry
7629899.9kl By bad
September 9, 2012

chemistry
7329899.9kl
September 9, 2012

Chemistry
A buffer system contains 0.25M NH4+ and 0.19M NH3. pka of NH4 is 9.25. How many moles of NaOH must be added to 1.00L of this solution to increase the pH to 9.25?
July 19, 2012

financial management
show me how to calculate current ratios, long-term solvency ratios, contribution ratios
March 28, 2012

financial management
show me how to work a forecast personnel expenses & total revenues using weighted moving averages & moving averages using 3 fiscal years
March 28, 2012

physics
Supertank has engine exerting a 75x10 cube N, Force against water drag at 40x10cubeN, Calculate tensions in tugs cable, Supertank is 1piont5x10eight kg 30 degrees vertical pull, Acceleration 2x10negative3 m/s?
March 2, 2012

science
How plant and animal life dependent on the water cycle?
November 22, 2011

Math prediction
how to add the following -94+(-19)
November 18, 2011

finding math
find the decimal notation for the fracton 3/10
November 18, 2011

Learning Math
why is it when 9x+x= 10x are we adding the x? Please help me to understand
November 18, 2011

Learning Math
Please solve 9x+x
November 18, 2011

science
4
November 2, 2011

physical
. On Earth the Mars rover had a weight of 9800 N. What will be its weight on mars where the acceleration due to gravity is 4 m/s
October 16, 2011

Math
Aluminum hydroxide suspension 15 mL is ordered four times per day. The pharmacy sends a bottle labeled 320 mg/5mL. How many milligrams will the patient receive per day?
September 21, 2011

May
Aluminum hydroxide suspension 15 mL is ordered four times per day. The pharmacy sends a bottle labeled 320 mg/5mL. How many milligrams will the patient receive per day?
September 21, 2011

algebra
Solve, 0.7x+4 is equal to or less than 1.1x-7 Simplify your answer. Type and inequality symbol; then type an integer or a decimal. The solution is {x x ___ ____}
July 28, 2011

Physics 2
Suppose, in the figure below, a 0.90-m rod experiences a 1.2-T magnetic field and the hand keeps it moving to the right at a constant speed of 3.5 m/s. If the current in the circuit is 0.040 A, what is the average power being delivered to the circuit by the hand?
June 11, 2011

Chemistry
A copper coil is placed in a solution of silver nitrate, the reaction proceeds and in time silver crystals form and the colution of copper nitrate is produced. What is the complete raction .
June 6, 2011

Math
it takes 5 hr for 8 cooks to prepare the food for a wedding rehersal dinner how long will it take 9 cooks?
June 4, 2011

PAP Chemistry
Net Ionic Equation of : NaOH(aq) + CaBr2(aq)
May 22, 2011

math
solve and show how it explained 5n+10+1-3n
March 21, 2011

math
show how to explain answer to p-8p
March 21, 2011

Math
A stick 80 centimeters long makes a shadow that is 50 centimeters long. At the same time of the day, the shadow of the tower is 25 meters long. How high is the tower?
February 27, 2011

Physics
A wire 3.00 m long and .450 mm2 in cross-sectional area has a resistance of 41.0Ω at 20 degrees C. If its resistance increases to 41.4Ω at 29.0 C, what is the temperature coefficient of resistivity?
February 7, 2011

math
bayside insurance offers two health plans. under plan A, giselle would have to pay the first 160 of her medical bills, plus 25% of the rest. under plan B, giselle would have to pay the first 180, but only 20% of the rest. for what amount of medical bills will plan B save ...
December 9, 2010

Biology
Thank You :)
December 5, 2010

Biology
If a heterozygote is crossed with a recessive individual, what % of their offspring will be recessive (have light hair)?
December 5, 2010

physics
On Earth the Mars rover had a weight of 9800 N. What will be its weight on mars where the acceleration due to gravity is 4 m/s 2 ?
December 5, 2010

Algebra
I am great at math but for some reason can not wrap my brain around Algebra for the world! Please Help!! Im stumped! Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x – 5y = 61 7x – ...
November 17, 2010

algebra
A dehydrated patient needs a 2.6% saline IV. Unfortunately, the hospital only has bags of 8% and 2% saline solutions. How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration?
November 17, 2010

CHEMISTRY
1)If 36 mL of KMnO4 solution are required to oxidize 25 mL of 0.02932 M NaC204 solution, what is the concentration of the solution? 2)A Certain brand of iron supplement contains FeSO4-7H2O with miscellaneous binders and fillers. Suppose 22.93 mL of the KMn04 solution used in ...
October 27, 2010

Science
What are two potential hazards with oil use?
October 17, 2010

Math
What do you think?
October 17, 2010

Algebra, explain how to please
Can someone explain to me how to solve -14=2/5(9-2b) It would be greatly appreciated thank you
October 17, 2010

Algebra
How would I solve -32=8/7(3w-1) I have no clue.. ._. These problems stress me out
October 17, 2010

Algebra
Where did the four come from?
October 17, 2010

Algebra
How would I solve: 1/3(D+3)=5 I know you need to find the recipicile, but I have no idea how to solve this.
October 17, 2010

Chemistry
A solution contains the following ions: Hg2(2+) and Fe(2+). When potassium chloride is added to the solution, a precipitate forms. The precipitate is filtered off and potassium sulfate is added to the remaining solution, producing no precipitate. When potassium carbonate is ...
October 1, 2010

Math
Input, 0,1,2,3 output: 5,7,15,44 What is the Domain and What is the Range? How would I figure this out? Can anyone explain on how they found them?
September 18, 2010

Math
Explain how you would use a number line to round 148 to the nearest ten.
September 13, 2010

Algebra 1
thanks so much!!
September 5, 2010

Algebra 1
Multiply (5sqrt5-10sqrt 6)* (3sqrt5+6sqrt6)
September 5, 2010

Algebra 1
subtract (8 sqrt 125) - (7 sqrt 5)=
September 5, 2010

Math
3) Explain how the laws of exponents work with rational exponents and give at least one example of an expression containing rational exponents... Please help.. I can't find the answer to this anywhere..
August 5, 2010

Math
okay so the answer i came up with is 4m^20 Is that right? Thanks so much for your help.
July 19, 2010

Math
ohh sorry it is (2m)^16 why are you using n?
July 19, 2010

Math
(2m)^4 * (2m)16
July 19, 2010

chemistry (WEBWORK)
thanks its right
July 17, 2010

chemistry (WEBWORK)
Use the labels (CV+, –OH, CVOH, , Ea (activation energy), & G) to complete the reaction potential energy profile below. More than one answer is possible for some spots. a. (Use i, ii, iv, etc. for your answer) b. (Use i, ii, iv, etc. for your answer) c. (Use i, ii, iv, ...
July 17, 2010

CHEMISTRY (WEBWORK)
SPARTAN: Use the information from question #1 to answer the following. A. Which two orbitals from CV+ and –OH will overlap creating the C-O bond in CVOH? ______ (Use i, ii, iv, etc. for your answer) B. Which of the following accurately shows the orbital interaction that ...
July 17, 2010

chemistry
a, b, b, a
July 13, 2010

algebra
find the domain of the function g(x) = 4 ______ 6 - 7x
July 8, 2010

FINANCE
Life for Kids Company, a small producer of plastic swimming toys, wants to determine the most it should pay to purchase a particular ordinary annuity. The annuity consists of cash flows of $700 at the end of each year for 5 years. The firm requires the annuity to provide a ...
March 23, 2010

Physics
I've tried that, but the program I'm using still says that that is incorrect.
February 5, 2010

Physics
A rifle has a mass of 4.73 kg and it fires a bullet of mass 13.6 g at a muzzle speed of 829 m/s. What is the recoil speed of the rifle as the bullet leaves the gun barrel? So far, I've got (using p for momentum) p=p, so massXchange in velocity of the bullet will will equal...
February 5, 2010

algebra
-1x2-4x+12=0
February 4, 2010

latin
Cras , vos quod vestri sanctimonialis mos have lost severus orsa of juvenis. Is what I think it is, but it'd be better if you checked your resourced to make sure.
December 10, 2009

ECONOMICS
I hear ya! Thanks.
April 8, 2009

Economics
Okay, Any response on my question?
April 8, 2009

ECONOMICS
ARE THE 3 BASIC CHARACTERISTICS OF THE ECONOMIC PERSPECTIVE SUPPLY, DEMAND AND EQUILIBRIUM OR PRICES, INCOMES, AND QUANITITIES. I BELIEVE THEY ARE SUPPLY, DEMAND AND EQUILIBRIUM, BUT NOT SURE.
April 8, 2009

Statistics
Suppose that the number of customers who enter a supermarket each hour is normally distributed with a mean of 540 and a standard deviation of 150. The supermarket is open 14 hours per day. What is the probability that the total number of customers who enter the supermarket in ...
February 13, 2009

Chemistry- test for presence of sulphate
I have a solution of Fe2(SO4)3, i.e. iron(III) sulphate solution. To test for the presence of the sulphate anion, nitric acid & barium nitrate were added. A white precipitate was obtained. Please help to check if the following equation is correct for the above reaction? Fe2(...
January 18, 2009

reading
can you help me to unscramble these words. 1. rglsentri 2. rgntae
December 12, 2008

Research Project on Computer Confidentiality
Use Opinion 5.07 to answer question (introductory sentence)then think about the consequences of what could happen if date and time were stamped improperly, if records were purged and patient didn't know it, what is encryption and is it 100% secure (no, nothing really is), ...
November 12, 2008

6th grade
the 1 = 5 so 5x1 + 3 thats how many fifths there are
November 3, 2008

english-character sketch
how are character sketches supposed to go? i think i am doing this wrong
October 27, 2008

college-economics
The gross national debt initially is equal to $3 trillion and the federal government then runs a deficit of $300 billion: total 5 questions. Confused, believe gross debt = all fed govt debt What is the new level of gross national debt? If 100 percent of the deficit is financed...
September 18, 2008

Science/ECology
What is a terrestrial ecosystem? And what are 2 examples of terrestrial ecosystem?
September 8, 2008

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