Lacey
Popular questions and responses by Lacey
Algebra
Following the birth of a child, a parent wants to make an initial investment P 0 that will grow to $70,000 for the child's education at age 19. Interest is compounded continuously at 6%. What should the initial investment be? Such an amount
asked on November 16, 2016 
chemistry
Can someone please tell me why I would (or wouldn't) expect a color change if FeCl3 were added to pure aspirin and also to oil of wintergreen? (I know aspirin is mostly salicylic acid, and I'm not even sure what compounds are in oil of wintergreen, I'm
asked on June 12, 2007 
Math  I really need help, please.
A town has a population of 8400 i 1990. Fifteen years later, it's population grew to 12500. Determine the average annual growth rate of this town's population. I really don't understand this problem. I've been going at it for hours and all I've come to is
asked on November 2, 2008 
english 11
In which sentence is the underlined phrase a prepositional phrase functioning as an adjective? My sister was born in Chicago. She went to boarding school in Coventry. My sister moved away in 2009. Her grades gave my sister a place in the top rank of her
asked on January 7, 2014 
Stats
An instructor gives a test with 20 multiple choice questions. There are 4 responses per questions and only one choice correct. The test also has 30 True/False questions. Determine the probability a student randomly guessing on all questions and correctly
asked on March 31, 2011 
Algebra
An engineer designs a satellite dish with a parabolic cross section. The dish is 10 ft wide at the opening, and the focus is placed 8 ft from the vertex. a) Position a coordinate system with the origin at the vertex and the xaxis on the
asked on November 16, 2016 
english 11
In which sentence is the underlined phrase a prepositional phrase functioning as an adjective? My sister was born in Chicago. She went to boarding school in Coventry. My sister moved away in 2009. Her grades gave my sister a place in the top rank of her
asked on January 7, 2014 
AP Chemistry
When 0.055 moles of lead(II) nitrate are dissolved in enough water to make 803 mililiters of solution, what is the molar concentration of nitrate ions? Answer in units of M.
asked on September 19, 2012 
Finance
Mary needs $9000 in 7 years. What amount can she deposit at the end of each quarter at 6% interest compounded quarterly so she will have her $9000?
asked on October 20, 2010 
physics/ math
A student bikes to school by traveling first d_N = 1.10 {miles} north, then d_W = 0.500{miles} west, and finally d_S = 0.200 {miles} south. You will now find the same quantity algebraically, without the need to use much geometry. Take the north direction
asked on September 24, 2010 
Geometry
VISUALIZATION Name the geometric term(s) for: a paritallyopened news paper woven threads in a piece of cloth satellite dish signal
asked on August 20, 2008 
science
explain the importance of convection currents to pond life
asked on February 22, 2009 
chemistry
How many milliliters of .50 M NaOH solution are required to titrate 40.0 mL of a 0.10 M H2SO4 solution to an end joint?
asked on March 6, 2010 
AP Chemistry
If a metal ore contains 21.4% pure metal, how many pounds of pure metal can be obtained from 59 pounds of metal ore? Answer in units of pounds
asked on September 19, 2012 
Ap chemistry
What is the approximate molar fraction of ethanol c2h5oh in an aqueous solution in which the ethanol concentration is 11.0 molal? A. 0.0011 B. 0.011 C. 0.170 D. 0.200 E. 0.600
asked on May 8, 2013 
Social Studies
HI, so these are questions from a test that I already took and I got these three wrong. But there letting me re do it so can someone explain to me or give me a link or something? Select a new deal program that helped improve the lives of south Carolinians.
asked on May 11, 2016 
Physics
A solid ball of mass m rolls along a horizontal surface with a translational speed of v. What percent of its total kinetic energy is translational?
asked on November 14, 2010 
Probability
Two brothers enter a race with 5 others. Racers draw names to determine their starting positions (1 to 6). What's the probability that the older brother will start in lane 1 with his brother directly beside him?
asked on April 28, 2009 
physics
A person jumps from the roof of a house 3.6 m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 {\rm m}. If the mass of his torso (excluding legs) is 46 kg. Find the average force
asked on September 29, 2010 
PHYSICS HELP!
A 3.6 m diameter merrygoround is rotating freely with an angular velocity of 0.78 rad/s. Its total moment of inertia is 1700 kg\m^2. Four people standing on the ground, each of mass 62 kg, suddenly step onto the edge of the merrygoround. 1. What is the
asked on October 25, 2010 
physics
What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10–31kg; and the neutron mass is 1.67 ×
asked on July 12, 2013 
Chem
Concerning compounds cyanogen, Hydrogen cyanide and sodium cyanide. Cyanogen = C2N2 (CN)2 Hydrogen Cyanide = HCN boils at 26C and yeilds an acid solution when added with water. Sodium Cyanide = empirical formula NaCN is a solid melts at 564C a) Assuming
asked on March 6, 2007 
Chemistry
Wow, ok, that helps a LOT!! I guess you can't very easily balance an equation that can never happen! :) Thanks a lot! Just to make things clear, wouldn't it have to be Mg3(PO4)2, from balancing the charges? Because PO4 is 2 and Mg is +3, so it would need
asked on April 11, 2007 
Geometry
Find the value of the variable and ST if S is between R and T. RS=7a, ST=12a, RS=28 No clue what so ever how to do this.
asked on August 24, 2008 
Chemistry
I have a reaction here: 2Na3PO4.12H2O + 3BaCl.2H2O > Ba3(PO4)2 + 6NaCl + 30H2O and a question: 0.349g of BaCl2.2H2O and 0.624g of Na3PO4.12H2O are dissolved in 500mL of water to form a solution  how many grams of the excess reactant remain after the
asked on September 25, 2007 
Math
two cones have radii in the ratio 5:4 and height 2:3, determine the ratio of their volumes . where V=1/3pier^2h
asked on October 9, 2011 
physics
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 1.7 cm and accelerates at the rate of 6.9 rad/s^2, and it is in contact with the pottery wheel (radius
asked on October 19, 2010 
math
A roll of paper towels has a radius of 12 cm and a height of 18 cm. the cardboard tube in the centre has a radius of 5cm. Find the volume of the paper towels So would I do 1812?
asked on February 9, 2017 
Physics
Ice (initially at 0 degrees celcius)is added to 0.75 L of tea at 20 degrees celcius to make the coldest possible iced tea. If enough ice is added so the final mixture is all liquid, how much liquid is in the pitcher when this condition occurs?
asked on December 6, 2010 
Chem
Reaction 1 ............................O ...........................// CH2=CHCHOH + CH3CHCH2C .........................\ .......CH3.........CH3......OH Left of the "+" is COMPOUND 1 and the right is COMPOUND 2. a) Identify the Functional groups in
asked on March 12, 2007 
Geometry
Name at least four ordered pairs for which the sum of coordinates is 2.
asked on August 20, 2008 
Chem 112
Consider the following reaction: Zn (s) + 2HCl (aq) > ZnCl2 (g) + H2 (g) If the reaction has a 68.4% yield, how many grams of zinc are needed to obtain an actual yield of 1.00 g of zinc chloride? Stuck on how to figure this out!
asked on January 22, 2017 
Physics
a 60 kg boy on a sled reaches the bottom of a hill traveling at 8 m/s, if he comes to a stop at 20 m along this flat stretch of snow what is the coefficient of kinetic friction between the sled and the ground? (hint: find the acceleration first)
asked on January 27, 2013 
Physics
A student bikes to school by traveling first d_N = 1.10 miles north, then d_W = 0.500 miles west, and finally d_S = 0.200 miles south. You will now find the same quantity algebraically, without the need to use much geometry. Take the north direction as the
asked on September 23, 2010 
SS please help!
Suppose the country has many natural resources, but almost no manufacturing. Which training plan with this country be most likely to follow? A trade with countries that produce manufactured goods B. would trade relations in order to preserve it’s natural
asked on February 20, 2019 
Physics
A glass is slid across a bar top and eventually comes to rest. if the coefficient of friction between the glass and bar top is .32 what is the acceleration it experiences?
asked on January 27, 2013 
AP Chemistry
For the reaction ? N2H4+? O2 →? N2+? H2O , what is the maximum amount of N2 (28.0134 g/mol) which could be formed from 14.75 g of N2H4 (32.0452 g/mol) and 4.31 g of O2 (31.9988 g/mol)? Answer in units of g
asked on September 19, 2012 
Chem 2 Lab
Calculate the volume of a 0.150 M NaOH solution that will be required to neutralize all of the H+ ions in 0.400 grams of phosphoric acid?
asked on April 25, 2012 
Algebra
A box contains 15 blue marbles, 25 yellow marbles, 20 green marbles and 40 red marbles. How many ,arbles must you select to be sure that a green marble has been chosen ?
asked on December 18, 2011 
algebra
o Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? o What circumstances would cause you to use a different method?
asked on January 26, 2010 
Chem
CH2 = CH  CH  OH ............ ...........CH3 Draw the structure of this polymer and identify the monomer unit. Should show three monomer unit State the type of polymerization involved in forming this polymer Hi Lacey, do you know the answers for part a,
asked on March 12, 2007 
AP Chemistry
14 carat gold has a purity of 58.3%. How many moles of gold are in 172 grams of 14 carat gold? Answer in units of moles
asked on September 19, 2012 
geometry
1. A triangle has side lengths of 8, 10, and 12. what kind of triangle is it? 2. A triangle has side lengths of 3, 4, and 7. what kind of triangke is it?
asked on January 12, 2012 
Grammar
Can you help me with these sentences.Review the following sentences. Some of them are correct, whereas others contain an error with a commonly confused word. 1.The diplomats are doing what they can to restore peace. 2.I should of written down where I last
asked on March 23, 2011 
Physics
Can scientists from other countries change what physicists in the United States think? Need help ASAP work due tomorrow XD
asked on August 19, 2008 
math
Johnnie picks 47 apples. His niece picks 5 more. How many apples did they pick altogether?
asked on November 2, 2018 
Math, word problem
Lee walked for 20 minutes on a motorized treadmill that was set at a constant speed of 4 miles per hour. About how many miles did Lee walk on the treadmill? A. Between 1/2 and 1 B. Between 1 and 1 1/2 C. Between 1 1/2 and 2 D. Between 2 and 2 1/2 E. More
asked on October 22, 2017 
Physics
What force of friction would be felt between a 5 kg sled and the ground if a 20 N force is needed to cause it to accelerate at a rate of 1.3 m/s squared?
asked on January 27, 2013 
Chemistry
Consider the reaction CH4+ 2Cl2=CCl4. If .33 moles of CH4 is reacted with 1 mole of Cl2, how much CCl4 is produced?
asked on April 12, 2012 
Ruminant Nutrition (college)
I'm studying for a Ruminant Nutrition final exam and have a couple essay questions that I'm really struggling with...  How do ruminants fit into sustainable food production systems?  Assume that you can genetically modify a rumen microbe to perform any
asked on May 4, 2009 
Religion
State the Argument from Religious Experience, does God really exists? *Explain the argument's strengths * Explain (two) of the argument's weaknesses *Explain which attributes of God are supported by the argument. For example, "Is the God proven to exist
asked on February 28, 2015 
Chemistry
Hi, I have another question... I need to write a reaction for the preparation of americium by reducing AmF3 with barium vapor at 1100C I'v looked and can't find anything that will help me with this... (I'm preparing for finals, so this might not be my last
asked on June 9, 2007 
Chemistry
....CH3.................O........................... ...__/................................................ ..// \\______N___C___CH___NH2. ..\==/...............................…............. ........\...........H…….......CH3………....
asked on March 12, 2007 
PHYSICS HELP!
Consider a hoolahoop of radius R and it is spinning about its symmetry axis at a constant angular velocity. Now, I double its mass and halve its angular velocity. What is the new angular momentum in terms of the initial angular momentum?
asked on November 1, 2010 
Chemistry
A 67gr mass of solid iron is heated by a flame until the temp of the iron equals the temp of the flame. The solid iron is then dropped into 250gr of liquid water at 26 degrees C. After 5 mins, the iron and the water are both at 47 degrees C. Specific heat:
asked on March 30, 2009 
OChem Nomenclature
Here is a compound that I am trying to name... H H \ / C  CH3CH2CCH2CH2CH2CH3 I came up with 3methylheptene, but the answer says 2ethyl1hexene. Can someone please explain why I'm wrong? Thanks that showed up wrong  the methyl with the double
asked on June 13, 2007 
Chem
Concerning compounds cyanogen, Hydrogen cyanide and sodium cyanide. Cyanogen = C2N2 (CN)2 Hydrogen Cyanide = HCN boils at 26C and yeilds an acid solution when added with water. Sodium Cyanide = empirical formula NaCN is a solid melts at 564C a) Assuming
asked on March 6, 2007 
chemistry
what is a catalyst
asked on October 3, 2013 
Physics
A volleyball player serves the ball horizontally with a speed of 23.8 m/s. How far will it have dropped when it reaches a distance 9.1 m
asked on October 4, 2012 
chemistry
How do you balance a chemical reaction word equation?!
asked on March 1, 2012 
science
How does a sunflower's energy get transferred?
asked on January 4, 2010 
Chemistry
Can someone please give me an example of a chemical reaction of scandium with oxygen? Thanks This site may have the information you need. http://www.webelements.com/webelements/elements/text/Sc/chem.html that's awesome, thank you! :) You're welcome. Sorry,
asked on June 9, 2007 
Chemistry
Can you explain the process for solving this problem (this one is more complicated than the example in our book): A solution contains both I^ and Cl^, each at a concentration of 3.0x10^2M. What concentration of Pb^+2 is required to precipitate the
asked on February 19, 2007 
Chemistry
Can you give me an example of a compound that can make Ba3(PO4)2 even more insoluble than it already is (and can you tell me why, just for my own understanding)? You use the common ion effect which is just an extension of the Le Chatelier's Principle. The
asked on February 19, 2007 
Algebra
X^2+y^2+6y+3=0 x^2+y^29x6=0 List the solutions: Please and thank you!
asked on November 17, 2016 
statistics
A random sample of 20 hogs on farmer Brown's hog farm had an average weight of 350 pounds and a SD of 70 pounds. Find 95% confidence interval estimate of the mean weight of all farmer Brown's pigs.
asked on December 8, 2010 
Geometry
Please help solve for: solve for x: m < 2=70 and m < 8 = 6 x  2
asked on October 10, 2008 
Physics
can scientific laws be changed by a vote?
asked on August 19, 2008 
SAT Math?
I'm working on a couple of SAT math programs for school, and I have trouble figuring some out. 1. Joe is 3 years younger than Kate. If n represents Nora's age now, what was Kevin's age 4 years ago, in terms of n? A. N + 7 B. N + 1 C. N  1 D. N  4 E. N 
asked on October 14, 2007 
physics
A yoyo of radius 10 cm and mass 1 kg is dropped from rest. What is the instantaneous torque on the yoyo if I hold the string with my fingers?
asked on November 4, 2010 
Math  last one
I just have one more question. I need to find the equation for the following word problem: a group of yeasts cells grows by 75% every 3 hours. At 9 a.m., there are 200 yeast cells. Write an equation that models the number of yeast cells after 9 a.m. So far
asked on November 2, 2008 
math
a punch recipe calls for 1 .5 liters of juice .how many millilitres is this
asked on March 10, 2008 
Science
Why is miosis important in providing airation in living things?
asked on September 11, 2007 
Intermediate Algebra
I have a 72% in this class, but I think I made an F on my final, what is my final grade? please help me!!!
asked on December 15, 2010 
history
Coolidge was known as a supporter of big business. what are three examples?
asked on March 30, 2010 
calculus
how do you find the dy/dx of the square root of x minus the square root of y equal to 10? You have to use implicit differentiation.
asked on March 23, 2008 
Word Problem
A quarterback and end play on their team. From the start of a play, Pete, the end, runs down the field at about 25 feet per second. Two seconds after the play starts, Phil, the quarterback, throws the ball, at about 50 feet per second, to Pete, who is
asked on September 17, 2007 
pre algebra
a rectangle measures 3.9 cm by 9.1 cm what is the area of the rectangle? (a=lw)
asked on September 25, 2008 
SAT Math... again
I asked two questions yesterday, and thankfully, bobpursley answered the latter. I accidentally typed in the first question wrong, so I'd really appreciate it if someone helps me out. Thank you, and have a good day :) 1. Kevin is 3 years younger than Nora.
asked on October 15, 2007 
Math
What is the sum of 3/4 over 8 plus 1/3 over 4
asked on September 24, 2015 
logic
determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using the basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers. (a) No A is B
asked on April 6, 2009 
math
how do you make a chart or a table?
asked on August 19, 2008 
Chemistry Help.......
State the Le Chatelier's principle and explain the following i) The effect that incresing the pressure will have on the eaualibrium yield of methanol ii) The effect of increasing the temperature will have on the equalibrium yeild of methanol iii) The
asked on March 12, 2007 
algebra
c=210+c Huh? Not possible for any c If x is any number and p is any positive value, then x + p > x.
asked on September 17, 2006 
Algebra 2
Write a system of inequalities in which x and y are each greater than 3, but not greater than 2. Can someone please help???
asked on October 27, 2011 
civics
what is a good strategy for remembering 2 paragraphs of the constitution?
asked on September 27, 2011 
Cultural Diversity
what is the best way to enplain orientalism and the characteristics of it?
asked on December 2, 2010 
Science
what mammal order has the following dental formula: 006/406?
asked on May 5, 2010 
math
x over x+2 and x=3
asked on February 4, 2010 
math
convert 2.37 with a reoccurring 37 into a decimal
asked on May 20, 2013 
science
what is the purpose of the ridge on the roof?
asked on February 22, 2009 
Solving for Variables
1. 2T^2 + 3KT  3K = 2 (for T) 2. x^34x^2 + 6 = 0 (for x)
asked on August 5, 2008

7th grade
hi
posted on September 9, 2019 
Math
Find the savings plan balance after 24 months with an APR of 5% and monthly payments of $250.
posted on July 3, 2019 
English
I just used these answers and I got 60%!!!!!!! Dang :( If you are wanting to find the answers then take the time and try and look them up!!! I promise it will help you a lot more! Good luck! :)
posted on May 29, 2019 
math
Omg can someone just put the right answers
posted on March 20, 2019 
EdTech
Omg TYSM @Im right !!
posted on March 12, 2019 
L.L
@rightanswers is right 😂 tysm I needed to check meh answers 😎
posted on March 6, 2019 
SS please help!
I think a
posted on February 20, 2019 
ALGEBRA
Number 15, all you have to do is multiply 1.25 and 25 then divide by 1 and you get 31.25.
posted on November 28, 2018