Lacy
Most popular questions and responses by Lacy
Calculus
Water is running into an open conical tank at the rate of 9 cubic feet per minute. The tank is standing inverted, and has a height of 10 feet and a base diameter of 10 feet. At what rate is the radius of the water in the tank increasing when the radius is
asked on December 14, 2015 
Mathsoh cab toa
The towrope pulling a parasailor is 70m long. They estimate that the angle between the towrope and the water is about 30°. Find the height of the parasailor above the water, to the nearest 10m.
asked on April 4, 2016 
Calculus
Water is running into an open conical tank at the rate of 9 cubic feet per minute. The tank is standing inverted, and has a height of 10 feet and a base diameter of 10 feet. At what rate is the exposed surface area of the water changing when the radius is
asked on December 14, 2015 
Chemistry
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (C6H5COONa). a) Find the pH of the benzoic acid solution BEFORE adding the salt. b) Use the
asked on February 13, 2013 
Math
An African elephant weigh 6 tons what is the weight of the elephant in pounds
asked on November 7, 2018 
Science/ Health
A unit of blood is released for a patient on the oncology floor. The nurse calls the blood bank 15 minutes later and reports that the patient has a visitor and does not want the transfusion until later that day. The nurse would like to hold the unit in the
asked on November 11, 2018 
chemistry
need help with a question calculate the concentration of grams of sodium stearate per milliliter of diluted solution. To do this, multiply the concentration of sodium stearate in the dishwashing liquid by the dilution of the solution(1.50 ml dishwashing
asked on June 14, 2017 
Chemistry
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (C6H5COONa). a) Find the pH of the benzoic acid solution BEFORE adding the salt. b) Use the
asked on February 13, 2013 
Math quadratic equation
A garden measuring 12m by 16m is to gave a pedestrian pathway installed all around it. The pathway is the same width all the way around the garden. The pathway and the garden have a total area of 258m^2. What will be the width of the pathway? ( I know the
asked on April 1, 2016 
math
The base of a triangular prism is a right triangle whose legs are 7cm and 24 cm. The height of the prism is 30cm. What is lateral area of prism?
asked on September 24, 2014 
Math
AJ fly is in altitude of 52,800 feet what is the height of the jet in miles
asked on November 7, 2018 
Algebra
Find 3 consecutive odd numbers such that the sum of 5 times the smaller number a twice the larger number is 33 more than six times the median number. Do not understand word problems. ..please help
asked on September 6, 2016 
accounting
Write a 700 to 1,050word paper, using APA guidelines, based on the scenario below. You want to start your own business. You found an investment group that is willing to give you the capital needed for the first year of your business, but only if you can
asked on January 29, 2011 
alg.
Determine which two equations represent perpendicular lines. a) y=2x  6 b) y=1/2x + 6 c) y= 1/2x + 6 d) y= 1/2x  6 I know that perpendicular lines have negative recipricals, but I'm having trouble with this problem. I think the answer is b & c because
asked on July 30, 2007 
math
A cube with an edge length of 4 in is painted on all its sides. Then the cube is cut into 64 cubes with an edge length of 1 in. What percent of the total surface area is painted?
asked on September 24, 2014 
math
Ihave to evalaute expressions can someone tell me which whay is the correct way. 15+ 20 ÷ 5 Is 15 + 4= 19 or 5 ÷ 5=9 2105 x 30 Is it 210150=60 or 205 x30=61590 Have you heard of BEDMAS? it shows the correct order of operation in arithmetic Bbrackets
asked on April 27, 2007 
Science
The speed of sound in a gas depends upon the average speed of the gas molecules. Why is such a relationship reasonable? The greater the density of the medium ie gas pressure, temperature, the better sound traves through it. Why? because there are more
asked on January 30, 2007 
human resources
o Name three selection tools that you would consider using to hire a police officer. o Choose what you think is the best selection tool or combination of selection tools in choosing the best candidate. o Detail which interview method would be most
asked on May 2, 2011 
Science
The potential energy of a golf ball in a hole is negative with respect to the ground. Under what circumtansces (if any) is the ball's kinetic energy? Its rest energy? The KE cannot be negative, nor can the rest energy be negative.
asked on January 9, 2007 
Literature
I need to find a critical analysis for Thed Lady with the Pet Dog by Anton CHekhov? Can anyone give me advice where I can find this?
asked on October 10, 2007 
alg.
Write the equation of the line that passes through point (2, –6) with a slope of –5. I think this is a pretty easy problem, but I'm making it out to be harder than it really is. here is what I got: y=mx+b 6=5(2)+b 6=10+b =10 =10 b=4 the equation
asked on July 30, 2007 
math
For the universal set U= {0,1,2,3,4,5,6,7} And the sets A={1,5}, B={1,2,3,4} And C= {4, 6} lists the elements in the following Sets. a. A ¿ B b. A U Bf c. A ¿(B U C) d. C ¿ (B ¿ A)f I assume your funny symbol is "∩", the intersection
asked on April 18, 2007 
biochemistry
You have purifiedLDH using affinity chromatography. Using the bradford assay you determined the total protein concentration of the column fraction to be 10 mg/ml in a final volume of 2.4 ml. You diluted some of your column fraction to 1 mg/ml using SDS
asked on December 9, 2013 
Philosophy
Create an 11 to 14slide PowerPoint® presentation answering one of the topics found in Appendix A, as well as 3 to 4 principle issues related to your chosen topic. My topic is Should there be a set of uniform morals standard? Thank you
asked on January 29, 2011 
chemistry
How many grams of water can be made by the reaction of 1.25 grams of ethanol with 2.50 grams of oxygen?
asked on April 8, 2010 
Science
Under what circumstances, if any, will a converging lens form an inverted image of a real object? Under what circumstances, if any, will a diverging lens forms an erect image of a real object?
asked on February 1, 2007 
Chemistry
Calculate the corrected creatinine clearance using the following data obtained from a person with a 1.73 m^2 body surface area: Serum creatinine:1.3mg/dL Urine creatinine:2.4 mg/dL Urine volume:1000ml/24hours We think it's 128, but not sure Help this is
asked on September 28, 2018 
Math
Find three consecutive even integers such that the sum of the smallest integer and twice the median integer is 20 more than the largest integer.
asked on August 31, 2016 
science/math
after traveling for 6.0 seconds, a runner reaches a speed of 10m/s. what is the runners acceleration? my answer is 60m/s , is that correct?
asked on September 18, 2014 
Science/Evolution
What do scientists believe that humans and apes originate from?
asked on January 19, 2012 
algebra (college)
The # N, in millions, of hearing impaired individuals of age X can be approximated by N= 0.00006x^3 + 0.006x^2  0.1x +1.4. Approximate to the nearest million the # of hearing impaired individuals of ages 25 and 40. 25= 1.75 and 40= 3 (those are
asked on July 31, 2011 
science
My questions is what member of the cat family is the best predator? I have tried to find the answer but each site I have looked at just says that they are predators (lion, tiger, cougar etc). They don't say which is the best. Any help would be appreciated.
asked on July 5, 2009 
math
I having problems understanding venn set and venn diagrams. Can someone explain this to me. For the universal set U= {0,1,2,3,4,5,6,7} And the sets A={1,5}, B={1,2,3,4} And C= {4, 6} lists the elements in the following Sets. a. A¿B b. A U Bf c. A
asked on April 18, 2007 
Science
The sun, moon and planets all follow approximately the same path from east to west across the sky; none of them is ever seen in the far northern or far southern sky. What does this suggest about the arrangements of these members of the solar system in
asked on December 31, 2006 
science/math
a car starting from rest accelerates at a rate of 8.0 m/s. what is its final speed at the end of 4.0 seconds?I got 32m/s, is this correct
asked on September 18, 2014 
chemistry
You took 0.99ml of a hexokinase assay solution and added 10 ul of an unknown glucose sample. The absorbance at 340nm is 0.422 the extinction coefficient is 6.22x10^3 the molecular mass of glucose is 180.16g/mol. What is the concentration of glucose in the
asked on September 30, 2013 
chemistry
You took 0.99ml of a hexokinase assay solution and added 10 ul of an unknown glucose sample. The absorbance at 340nm is 0.422 the extinction coefficient is 6.22x10^3 the molecular mass of glucose is 180.16g/mol. What is the concentration of glucose in the
asked on September 30, 2013 
Math
x=2y+1 x+3y=2 Please help me solve each system of equations and show your work thanks.
asked on February 25, 2012 
math
1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 115
asked on October 27, 2010 
history
Which countries wanted to join the European Union in 2002?
asked on February 24, 2008 
alg.
Find the slope of any line parallel to the line through points (17, 4) and (5, 8). the slope of these is: 84 4 1  =  =  175 12 3 is 1/3 the correct answer? No you started with the y of the second point, so you have to start with the x of the
asked on July 30, 2007 
Math
I need help solving these problems y=0.4x^2+8.3x+4.3 I got 0.52 h=16t^2+149t+30 I got 640.5 feet after 4.63 seconds 0=x^2+3x10 I got x=5, 2 (2x4)(2x1)=0 I got 2, 1/2 x^2+8x=10 I got 1.1, 9.1 HELP PLEASE
asked on May 22, 2017 
Statistics
Three final candidates (Alex, Bo, and Chris) for a position happen to take different versions of the aptitude test. You are supposed to choose the one who performed best out of these three final candidates and the test results are as follows: Alex received
asked on October 30, 2016 
Algebra
5x+6/3x9=7/3 Please help, thoroughly confused
asked on August 29, 2016 
Math
5x+6/3x9=7/3
asked on August 29, 2016 
algebra II
need set notation for two step inequalities. problem is 45v5. if that's true, then how do u do set notation for answer? have 80 set notations to do and need to know how to do this by example
asked on September 16, 2014 
chemistry
You have purifiedLDH using affinity chromatography. Using the bradford assay you determined the total protein concentration of the column fraction to be 10 mg/ml in a final volume of 2.4 ml. You diluted some of your column fraction to 1 mg/ml using SDS
asked on December 9, 2013 
algebra 2
3/8 * 2/7 * (3) Its multiplying fractions, but it wants the answer in simplest form!
asked on October 11, 2012 
algebra 2
3u+7/2=4/3u5/4 solve for u in simplest form.
asked on October 11, 2012 
social studies
What were the findings of the Nye Committees?
asked on April 11, 2010 
Microeconomics
Consider Good E, which, when sold in a particular country, has an equilibrium price = $10.00. The government of that country decided that it doesn’t like that equilibrium price, and so passes a law which prevents the product from selling for $10.00.
asked on March 27, 2010 
Us after 1877
Why would the Knights of Labor oppose child labor beyond the obvious reason that children should not be forced to work? What about their opposition to convict labor?
asked on March 8, 2010 
intro to corrections
identify and describe the five functions of jails
asked on February 3, 2010 
Finance
Determining the inflation rate. In the mid 1990s selected automobiles had an average cost of $12,000.The average cost of those same automobiles is now $20,000. What was the rate of increase for these automobiles between the 2 tim eperiods?
asked on April 17, 2009 
History
Does the federal reserve system affect us directly in any way? How?
asked on February 24, 2008 
Histroy
How does the supreme court show that the constitution allows congress to exercise the power to regulate commerce within a state?
asked on February 24, 2008 
algebra
Complete the ordered pairs for the equation y = 8x + 16. (?, 0),(1/8, ?),(0, ?)(1/8, ?) my answers are: (2,0),(1/8, 17), (0,16), (1/8, 15) are these correct? yes
asked on July 30, 2007 
alg.
Find the slope of the line passing through the points (–2, 1) and (3, 9). I know the equation to figure this out is: m = y(2) + y(1)  x(2) + x(1) but its a multiple choice question and my answer is not the same as the choices. how exactly do I
asked on July 30, 2007 
bablylonian numeration
can someone tell me how to write 372 in numeration system? Thank you for using the Jiskha Homework Help Forum. Do you mean Binary, Octal or Hexadecimal? (Broken Link Removed) P.S. 1. http://mathforum.org/alejandre/numerals.html I need to convert 372 into
asked on April 18, 2007 
Math
2+2= 7 2=2=4 Why are you being a smart aleck? Or do you really not know?
asked on September 14, 2006

social studies
@JoeHoe is 100% correct
posted on March 12, 2019 
social studies
thanks @Papparazi_
posted on March 11, 2019 
social studies
are @JoeHoe answers correct?
posted on March 11, 2019 
Math
Please need help
posted on November 7, 2018 
math
Y’all r all saying different things who’s write
posted on November 7, 2018 
Physical Education
Thanks Kia!
posted on March 20, 2018 
science
Skylar is wrong
posted on March 20, 2018 
please check(Social studies)
360 is incorrect and lying I missed 1 and got an 80%
posted on February 12, 2018 
Math
Do you do connections academy
posted on January 9, 2018 
biology
how does an observation about an object differ from an inference about that object?
posted on August 8, 2017 
trigonometry
find sin65 and square it. find cos 65 and suare it. then add the two answers together
posted on July 11, 2017 
Math
(5x+6)/(3x9)=7/3 Do not understand Help
posted on August 29, 2016 
Math
The first example
posted on August 29, 2016 
Mathsoh cab toa
Thank you!!
posted on April 4, 2016 
Math quadratic equation
Okay thank you so much!!!
posted on April 1, 2016 
academic execellence
A, critical thinking
posted on May 27, 2014 
Lang. Arts 2 questions
dog, and wrote a fantastic essay about paris
posted on November 14, 2013 
Chemistry
I don't understand part a) How to start the process of finding the pH
posted on February 13, 2013 
human resources
lol..ok I just came down with pneomonia and feel completely out of it and no desire to do the assignment..I was looking for an easy way out and I apologize. Thank you
posted on May 2, 2011 
human resources
• Write a 1,300 to 1,500word paper in which you address the following considerations related to selection tools
posted on May 2, 2011 
algebra1
y/x+8 y=8x
posted on March 2, 2011 
accounting
these are great websites. Thank you for pointing me in the right direction. Much appreciated.
posted on January 29, 2011 
science
As the question says is the lion the best predator in the cat family, I am thinking that they mean which 'cat' is best at catching prey.
posted on July 5, 2009 
science
I guess they mean which is the best hunter?
posted on July 5, 2009 
science
oops should read cat not cart!
posted on July 5, 2009 
science
the question we have been given is 'is the lion the best predator in the cart family'?
posted on July 5, 2009