Sunday

May 29, 2016
Total # Posts: 354

**Alegbra**

The area of the smallest (shaded) square measures 1 square unit. What is the area of the largest square? (there are 7 squares) Please help me!!!
*November 14, 2011*

**statistics**

Using measures of center and measures of variability compare the number of hours on school work (Q11) and the number of hours watching television (Q14). a) Which variable has greater variability? How do you know? b) What number of hours on school work would be at the 10th ...
*October 18, 2011*

**statistics**

From the MM207 Student Data Set identify the following: a) A variable measured at the nominal level of measurement. b) A variable measured at the ratio level of measurement. c) A variable measured at the ordinal level of measurement
*October 17, 2011*

**physics**

If the force of friction acting on a sliding crate is 79 N, how much force must be applied to maintain a constant velocity? 79N so... What will be the net force acting on the crate? What will be the acceleration?
*October 2, 2011*

**Science**

If the force of friction acting on a sliding crate is 79 N, how much force must be applied to maintain a constant velocity?
*October 2, 2011*

**MATH! URGENT!!!**

There are 32 teams in the NFL. Sixteen of the teams are in the American Football Conference (AFL) and the other 16 teams are in the National Football Conference (NFC). At the beginning of the season, Julia tried to predict the teams that would be in each conference's ...
*September 18, 2011*

**8th grade math**

can somebody please help me!?! this is urgent!
*September 18, 2011*

**8th grade math**

There are 32 teams in the NFL. Sixteen of the teams are in the American Football Conference (AFL) and the other 16 teams are in the National Football Conference (NFC). At the beginning of the season, Julia tried to predict the teams that would be in each conference's ...
*September 18, 2011*

**algebra 1**

since you're sampling a fifth of the light-bulbs, then you would times 21 and 5 to get 105 defective light-bulbs
*September 18, 2011*

**MATH**

i still don't understand how you got that
*September 18, 2011*

**MATH**

There are 32 teams in the NFL. Sixteen of the teams are in the American Football Conference (AFL) and the other 16 teams are in the National Football Conference (NFC). At the beginning of the season, Julia tried to predict the teams that would be in each conference's ...
*September 18, 2011*

**MATH**

A farmer walks into a store and heads for the counter. On the counter is a basket of hard-boiled eggs. The farmer says to the cashier,"I'll take half of your eggs plus half an egg." The next day he walks in the store and says to the cashier,"I'll take ...
*September 5, 2011*

**math**

umm... can you please explain
*September 5, 2011*

**math**

A farmer walks into a store and heads for the counter. On the counter is a basket of hard-boiled eggs. The farmer says to the cashier,"I'll take half of your eggs plus half an egg." The next day he walks in the store and says to the cashier,"I'll take ...
*September 5, 2011*

**math**

thank you!!!
*August 21, 2011*

**math**

3 boxes are in a room. You know that one contains apples, one contains oranges, and one contains both apples and oranges, nut you don't know the contents of the specific boxes. The boxes are labeled, "apples," "oranges," and "apples and oranges,&...
*August 21, 2011*

**math**

three boxes are in a room. You know that one contains apples, one centains oranges, and one contains a mixture of apples and oranges, but you don't know the contents of the specific boxes. The boxes are labeled "apples","oranges", and "apples and ...
*August 20, 2011*

**alegbra**

2x=x+7
*August 10, 2011*

**Any**

Thank you all
*August 6, 2011*

**Any**

Anyone know anyone that I could find in the internet who never gives up?
*August 6, 2011*

**Human Relations Part 1**

Strong feelings
*May 21, 2011*

**science**

how do hurricanes form?
*May 18, 2011*

**Math**

1/2= 4/8 if each runner runs 1/8 then there are 4 runners
*May 18, 2011*

**MATH!!!**

umm i still don't understand
*May 18, 2011*

**MATH!!!**

A cooking pot used in the cafeteria weighs 64 pounds when it is filled with soup. How much would a smilar pot witha scale factor of 1/2 weigh when filled with the same soup? would you just do 64 divided by 2? If not then what do i do?
*May 18, 2011*

**math**

A cooking pot used in the cafeteria weighs 64 pounds when it is filled with soup. How much would a smilar pot witha scale factor of 1/2 weigh when filled with the same soup? would you just do 64 divided by 2? If not then what do i do?
*May 18, 2011*

**MATH**

make an input-output table for the equation y= -x-2 using the domain 0,1,2 and 3. Tell whether the table represnts a function. How do you do this?
*May 18, 2011*

**MATH**

ooohhhhh! I get it now! thanks so much!
*May 18, 2011*

**MATH**

wai the height of the pyramid is 3 times the height? Can you just show how you got it with numbers like how you would on a piece of paper. Thanks!
*May 18, 2011*

**MATH**

the base of a rectangular prism is congruent to the base of a pyramid. The height of the pyramid is 3 times the height of the prism. Which figure has a greater volume? Explain. I'm terrible with these kind of word problems. If you could explain that would be great.
*May 18, 2011*

**math**

can someone please help me!?!
*May 18, 2011*

**math**

the base of a rectangular prism is congruent to the base of a pyramid. The height of the pyramid is 3 times the height of the prism. Which figure has a greater volume? Explain. I'm terrible with these kind of word problems. If you could explain that would be great.
*May 18, 2011*

**mAtH**

a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold? Aghhhh! I completely don't get it!!
*May 17, 2011*

**MATH**

so the answer is 0.817 gallons when you round to the nearest tenth?
*May 17, 2011*

**MATH**

There are 231 cubic inches in a gallon. A large juice can has a diameter of 6 inches and a height of 10 inches. How many gallons of juice does the can hold? Round your answer to the nearest tenth. I am clueless please please help me!!!!
*May 17, 2011*

**math **

wait then what is the 4 for? please explaina little more
*May 17, 2011*

**math **

At the county fair, the apple pies are lined up side-by-side for juding on a 6-foot table. Each pie has an area of 50.24 inches squated. How many pies are on the table? I don't understand how to solve this problem. Please explain and show me how step-by-step. tHANK YOU!
*May 17, 2011*

**math**

wait so after you find the areas you subtract the reservoir from the garden to get the answer?
*May 17, 2011*

**math**

i am still confused so you find the areas of both circles, but whats the formula? pi times r times 2? please help me!!!!!
*May 17, 2011*

**math**

There is a water reservoir beneath a circular garden to supply a fountain in the garden. The reservoir has a 26-inch diameter. The garden has a 12-foot diameter. How much of the garden doesn't contain the water reservoir? I have no idea how to do this please explain!!!
*May 17, 2011*

**math!!**

thank you Reiny and Ms. Sue!! I wouldn't be able to make it through my math class without you!
*May 17, 2011*

**math!!**

a triangular road sign has a height of 8 feet and a base of 16.5 feet. How much larger in area is this sign than one with a height of 4 feet and a base of 8.25 feet? Please fully explain how you got this cause i'm really confused!!!
*May 17, 2011*

**math**

can you answer my question above about the triangular road sign? If you could that would be AWESOME!!!
*May 17, 2011*

**math**

thank you soo soo much!!! =)
*May 17, 2011*

**math**

wouldn't your width be 6.1 inches?
*May 17, 2011*

**math**

a dollar bill has an area of 15.86 square inches. If a dollar bill is 2.6 inches long, how wide is it? Please explain how you got please!!!
*May 17, 2011*

**math**

thank you!!!
*May 17, 2011*

**math**

i'm rather in a rush so could you please answer my question and explain? thank you
*May 17, 2011*

**math**

a triangular road sign has a height of 8 feet and a base of 16.5 feet. How much larger in ares is this sign than one with a height of 4 feet and a base of 8.25 feet? Please explain fully and show how you got the answer.
*May 17, 2011*

**math**

thank you very much
*May 17, 2011*

**math**

if you could i would ask you if you can please answer asap because i have tons of homework tonight
*May 17, 2011*

**math**

a back yard is shaped like a parallelogram with a height of 32 feet and a base of 100 feet. One bag of grass seed covers 125 square feet. What is the least number of bags of seed needed to seed the lawn? Also, please explain how you got it.
*May 17, 2011*

**math**

how do you find the volume of a parallelogram?
*May 17, 2011*

**algebra 2!**

Evaluate the piecewise function f(x)= 7 if x is < or equal to -4; -14 if -4<x<orequalto 3 for x =-5 and x=8; -8 if 3<x
*May 5, 2011*

**algebra 2!**

A swimmer is racing to the other side of the pool. The pool is 75 feet long. The swimmer travels 2.5 feet per second. Create a table, equation, and graph to represent the swimmer's distance to the other side of the pool with relation to time. When will the swimmer reach ...
*May 5, 2011*

**algebra 2!**

Given f(X)=the square root of x-2 and g(x_=6/x-3 (+1), write the composite function g(f(x)) and state its domain. Where is the resulting function defined?
*May 5, 2011*

**Chemistry**

6) is 34 g CH3OH
*May 4, 2011*

**Alegbra**

Perform the indicated operations of 5/8-(2-7)
*April 19, 2011*

**math**

what is the average total 0f 60 90 and 120
*March 29, 2011*

**Technology**

If you were a housing contractore how would you go about avoiding structure failure in the house that you build in terms of:1 poor design 2 incorrects choice of materials 3 poor workmanship
*March 21, 2011*

**College Chemistry**

Molarity of .100 mole of urea (CH4N2O) in 250.0 mL of solution
*February 8, 2011*

**Chemistry**

Find the pH of a solution prepared by taking a 50.0 mL aliquot of a solution prepared by dissolving 12.25g of NaOH and 250.0 mL of water and diluting that aliquot to 1.00L?
*January 20, 2011*

**Trig**

How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b?
*December 13, 2010*

**Trig**

How do you convert 36x + 7y = 8 into y=mx+b format?
*December 13, 2010*

**Trig**

A curve with polar equation r=(8)/7sinx + 36cosx represents a line. This line has a Cartesian equation of the form y=mx+b ,where m and b are constants. Give the formula for y in terms of x . For example, if the line had equation y=2x+3 then the answer would be 2x+3 .
*December 13, 2010*

**chemistry**

the rate of formation of NH3 is .15 mol/Lmin. What is the rate of this reaction? N_2_ + 3H_2_ ---> NH3 the answer should be .075 mol/Lmin.
*December 12, 2010*

**chemistry**

x + 2y ---> products is first order in c and 2nd order in y. what are the units of K, the specific rate constant, if the reaction rate is expressed in units of moles per liter per sec. I know the answer is M.s^-1^ but I don't understand this concept. could you explain ...
*December 12, 2010*

**chemistry**

From this information- a + c_2_ ---> ac + c Slow ac + a ---> a_2_c Fast 2a + c_2_ ---> a_2_c + c Overall -you know that it is 1st order in a, 1st in c2, and 2nd overall. how? what about a reaction being fast or slow tells you if it's in first or second order?
*December 12, 2010*

**chemistry**

SF4 ---> SF2 + F2 rate constant (k) = .011 l/molxS [SF4]2 How many minutes will it take for the concentration of SF4 to be reduced from 2.5 M to .25 M? I said this was a 2nd order reaction and used : (1/final)= kt + (1/initial) and solved for t. the answer should be 5.5. I ...
*December 12, 2010*

**chemistry**

How do you know that from this list, F2 is the strongest oxidizing agent? Mg2+ Mg F2 F- H+ Why is F- the weakest reducing agent from this list? Al3+ Al F2 F- K+
*December 9, 2010*

**chemistry**

In the following equation, which species is the oxidizing agent? KCLO3 --> KCL + KCLO4 In the same are, How do you know that Cu is the reducing agent in this equation: AgNO3 + Cu ---> Cu(NO3)2 + Ag
*December 9, 2010*

**chemistry**

Calculate the Gibbs free energy change for the reaction below when initial concentrations of CR3+ and Cu2+ are 1 M (F= 96500 J/V mole e-) 2Cr3+ (aq) + 3Cu (s) --> 2Cr (s) + 3Cu2+ (aq) I assume we use the deltaG= -nFE equation, but how do you know n when Cr is using 3 e- and...
*December 9, 2010*

**chemistry**

a cell is constructed by immersing a strip of silver in .10 M AgNO3 solution and a strip of lead in 1.0 M Pb(NO3)2 solution. A wire and salt bridge complete the cell. What is the potential of the silver electrode in the cell?
*December 9, 2010*

**10th grade**

jordan has 2 quarters, 1 nickel, and 3 dimes. if he took 1 out and then a second one without replacing the first coin, what is the probability that both coins were dimes?
*December 5, 2010*

**chemistry**

thanks!
*November 23, 2010*

**chemistry**

A(g)+ B(g) <---> C(g) + D(g) Kc= 144. If .4 mol of A and B are placed in a 2 Liter container, what will be the concentration of C at equilibrium? I said the concentration of A= .2 because (.4/2=.2) and because 1 mol of A = 1 mol of C, the concentration of C also = .2 But...
*November 23, 2010*

**chemistry**

A(g)+ B(g) <---> C(g) + D(g) Kc= 144. If .4 mol of A and B are placed in a 2 Liter container, what will be the concentration of C at equilibrium? I said the concentration of A= .2 because (.4/2=.2) and because 1 mol of A = 1 mol of C, the concentration of C also = .2 But...
*November 23, 2010*

**chemistry**

what is the pH of a solution that is .15 M in HOCl and .25 M NaOCl after .05 mol HCl/L has been bubbled into the solution? this is what I did: HOCl + H2O ----> H3O+ + OCl- .15 .25 -.05 +.05 --------------------------- .1 .30 3.5E-8=[H3O][.3]/[.1] H3O= 1.167E-8 pH= -log(1....
*November 23, 2010*

**chemistry**

thanks!!!
*November 23, 2010*

**chemistry**

Calculate the value of [H3O+] in a 0.01 M HOBr solution. Ka = 2.5E-9 I'm having a problem with just writing the equilibrium expression. do you add H2O to the HOBr? HOBr + H2O <---> H3O+ + OBr- but then you could say that because HOBr = .01 M, then 0Br- = .01 M, and ...
*November 23, 2010*

**chemistry**

The solubility of Fe(OH)2 is 3.00 10-3 g in 2.00 liters at 18°C. What is its Ksp at 18°C?
*November 15, 2010*

**chemistry**

How many grams of MgF2 will dissolve in 150. mL of 0.100 M NaF solution? Ksp for MgF2 = 6.4 x 10-9
*November 15, 2010*

**chemistry**

Calculate the ionization constant, Ka, of phenol (HC6H5O), a weak acid, if a 0.25 M solution of it has a pH of 5.24.
*November 15, 2010*

**chemistry**

The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4? N2O4(g) 2 NO2(g)
*November 15, 2010*

**chemistry**

What is the value of [OH-] in a 0.015 M CH3COOH solution? Ka = 1.8 x 10-5 I started by writing the equation: CH3COOH + H2O <---> H3O+ + CH3COO- Ka= [H3O+][CH3COO-]/[CH3COOH]= 1.8 E-5 ... Now what? I don't understand where OH relates to this ...
*November 15, 2010*

**chemistry**

If solid AgNO3 is slowly added to a solution that is .05 M in NaI and .12 M in NaCl, what is the concentration of I- when AgCl just begins the precipitate? Ksp for AgCl= 1.8 x 10^-10 Ksp for AgI= 1.5 x 10^-16
*November 13, 2010*

**chemistry**

If 100 mL of .03 M HCL solution is added to 100 mL of buffer solution which is .1 M in NH3, and .1 M in NH4Cl, what will be the pH of the new solution?
*November 13, 2010*

**chemistry**

what is the [H3O+] of a solution that is .01 M in HOCl and .03 M in NaOCl?
*November 13, 2010*

**chemistry**

A sample of only solid ammonium chloride was heated in a 1 L container at 500 C. At equilibrium, the pressure of NH3 (g) was found to be 1.75 atm. what is the equilibrium constant, Kc, for the decomposition at this temperature? R= .08206 L atm/K Mol NH4CL (s) <---> NH3(g...
*November 13, 2010*

**chemistry**

1.00 mol of A and 2.00 mol of B are placed in a 5 Liter container. after equilibrium has been established, .50 mol of D is present in the container. What is the equilibrium constant, Kc? A + 2B <---> 2C + D
*November 13, 2010*

**chemistry**

How many grams of potassium formate, KHCOO, must be added to 500 mL of a .07 M solution of HCOOH to produce a buffer solution with a pH of 3.50? given: Ka of HCOOH=1.8 x 10^-4
*November 13, 2010*

**Physics**

1750 minutes
*November 2, 2010*

**Math**

Oh, ok thanks. I understand it now.
*October 21, 2010*

**Math**

Solve:(sec 35 degrees) (csc 55 degrees) - (tan 35 degrees) (cot 55 degrees)
*October 21, 2010*

**statistics**

The heights of a large population of students have a mean of 60" with a standard deviation of 3". What is the mean of the resulting distribution of sample means for n =16?
*October 17, 2010*

**Chemistry**

When in a solid form, NaCl (salt) is a neutral compound. When dissolved in water the ions dissociate (break apart) to form Na+ and Cl-. How does this explain why salt can conduct electricity when dissolved but not in solid form? _______________________________________________
*September 15, 2010*

**geometry**

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...
*September 13, 2010*

**geometry**

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...
*September 13, 2010*

**Marketing **

I need an idea for a future product or service to market for this class project, any ideas? Thank you in advance!
*September 1, 2010*

**Marketing **

I believe people are already doing this, how about a product idea. Something tha can be useful to people. Nothing too fancy please. Thanks!
*September 1, 2010*