Saturday
December 10, 2016

# Posts by Dede

Total # Posts: 42

Chemistry
What is the percentage of sand (SiO2) in a 2.88g of a mixture If 1.93 of sand was recovered upon separation?
September 5, 2015

Chemistry
DrBob222 you were so helpful earlier in assuring me I was on the right track with the ionic equations. Your very gifted in chemistry. I have spent from a short time after that post until now banging my head against the wall trying to figure out how to balance an oxidation ...
April 21, 2015

Chemistry
Could you please check my work about complete ionic and net ionic equations. They really confuse me. My original equation, after I balanced, was: FeCl2(aq)+Na2S(aq)=FeS(s)+2NaCl(aq). For complete Ionic I think its: Fe^2+^(aq)+2Cl^-^(aq)+2Na^+^(aq)+S^2-^=FeS(s)+2Na^+^(aq)+2Cl...
April 21, 2015

Equivalent fractions
February 17, 2015

Equivalent fractions
Equivalent fraction for 5/6
February 17, 2015

Math! Algebra 1!
A boat is traveling in a river with a current that has a speed of 1.5 km/h. In one hour, the boat can travel twice the distance downstream as it can travel upstream. How long will it take the boat to travel 100 km in still water?
November 10, 2014

oklahoma history
After the signing of the Treaty of Paris in 1763, France gave __________ to __________.
September 24, 2014

math
which number is between 32 over 9 and 3 8 over 9 a. 37 over 9 b. 3 7 over 9 c. 3 5 over 9 d. 31 over 9
September 21, 2014

math
I don't know how you get the answer
September 21, 2014

Math
If u plot the point -8.85 on a number line, would u place it to the left or the right of -8.8? explain
September 15, 2014

chemistry
0.74 Kcal/min to cal/sec How do I work this out ?
September 9, 2013

arithmetic
Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called reachable, if it can ...
March 6, 2013

math
The home economics team has 6 3/4 feet of fabric for a class project. They need 3/4 of a foot of fabric for each piece in the project. How many pieces will they be able to cut?
October 11, 2012

Math
The height (in feet) of a small weight oscillating at the end of a spring is h(t) = 0.5 cos(2t) where t is in seconds, 0 ≤ t ≤ 5. (This is calculus. Use radians!) (a)Calculate the weight’s average velocity over the time interval 1 ≤ t ≤ 3. Show ...
August 29, 2012

algebra
the length of a rectangle is fixed at 23cm what lengths will make the premiter greater than 72cm
April 14, 2012

Algebra 1a
8 Increased by b The translation is
April 8, 2012

what are two objects with the same volume. why does one feel heavier?
September 29, 2011

science
is wood waterproof?
September 26, 2011

Managerial Economics
The manager of All City realtors wants to hire some real estate agents to specialize in selling housing units acquired by the Resolution Trust Commission (RTC) in its attempt to bail out the savings and loan industry. The commission paid by RTC to the company to sell these ...
November 24, 2010

Managerial Economics
Recently one of the nation’s largest consumer electronics retailers began a nationwide television advertising campaign kicking off its “Take It Home Today” program, which is designed to encourage electronics consumers to buy today rather than continue postponing...
November 16, 2010

Managerial Economics
Suppose the two rival office supply companies Office Depot and Staples both adopt price matching policies. If consumers can find lower advertised prices on any items they sell, then Office Depot and Staples guarantee they will match the lower prices. Explain why this pricing ...
November 16, 2010

physics
Two large circular metal plates are parallel and nearly touching, only 4.1 mm apart. The two plates are connected to the opposite terminals of a 9 V battery. (a) What is the average electric field strength in the space between the plates? V/m (b) What is the electric force on ...
November 9, 2010

Physics
A man weighs 1220 N on Earth. What would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? The acceleration of gravity is 9.8 m/s2 . Answer in units of N.
November 4, 2010

Physics
Gravity on the surface of the moon is only 1 as strong as gravity on the Earth. 6 What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s2 . Answer in units of N.
November 4, 2010

government
What is a document that sets up the broad organization of a government and the rules under which it operate?
November 4, 2010

Managerial Economics
Please let me know if I am on the right track? a) The firm paid the last hired worker \$100 and he produced 10 units. So, cost of producing the last unit (MC) is 100/10 = \$10 b) The firm hires 10 workers and pays them \$100 each, so Total variable costs are 10*100 = 1000. On ...
November 3, 2010

Managerial Economics
Suppose that a firm is currently employing 10 workers, the only variable input, at a wage rate of \$100. The average physical product of labor is 25, the last worker added 10 units to total output, and total fixed cost is \$5,000. a. What is marginal cost? b. What is average ...
November 3, 2010

Managerial Economics
Ross Perot added his memorable “insight” to the debate over the North American Free Trade Agreement (NAFTA) when he warned that passage of NAFTA would create a “giant sucking sound” as U. S. employers shipped jobs to Mexico, where wages are lower than wages...
October 31, 2010

economics
ABC Machinery produces ice machine with historical (monthly) data in the Excel file. Please construct its short-run total cost function to answer the following questions: QUESTIONS 1. Given the data, please construct a Short-Run total cost (TC) function (cubic function) by ...
October 29, 2010

earth science
state how the sun generates the energy that it radiates away as its luminosity.
October 22, 2010

chemistry
what product will form from dehydration of 2-methylcyclohexanol?
July 24, 2010

statistics
Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that 5 or more will be defective
September 28, 2009

algebra with pizzazz
He wanted a meal on wheels
October 19, 2008

algebra
A rectangular swimming pool is twice as long as it is wide. A small walkway surrounds the pool. The walkway is a constant 2 feet wide and has an area of 196 square feet. Find the dimensions of the pool.: *
August 8, 2008

math
4 lbs. of bananas cost 156. each lbs of bananas cost how many trinkets?
April 10, 2008

english
I can't put this sentence together and have it sound right. Any suggestions? Women have contributed much to American culture of great value. or Women have contributed much of great value to American culture. HELP!
January 30, 2008

english
Would I write... While driving east, the forest became denser. or As I drove east, the forest became denser. Also, do I capitalize East?
January 30, 2008

english
Do I capitalize French fries as in ...I served french fires on china plates to the ladies.
January 30, 2008

pigskin geography
foot of the moutain
November 19, 2007

History
Europe was affected by the Treaty of Versailles by causing the rise up Hitler
December 30, 2006