Wednesday

July 27, 2016
Total # Posts: 1,219

**Chem**

What is the volume in liters of 48.0 grams of oxygen gas at 0.0 C and a pressure of 760mm Hg?
*December 10, 2012*

**physics**

how much energy would it take to melt 250kg of lead assuming it starts at 30 degrees centigrade.
*December 9, 2012*

**MATH!!!!!!!!!!!! I need help please**

Simplify Complex fraction: (x-1) ----- (x-3) --------- 1 4 ---- - ---- x2-x-6 (x+2)
*December 9, 2012*

**Algebra!!**

(x-1)/(x-3)/1/x2-x-6-4/(x+2)
*December 9, 2012*

**Intermiate Algebra**

Reduce the Rational expression to lowest terms: 3x2-9x+6/10-5x
*December 9, 2012*

**Ratio**

Help meeeeee plz.....
*December 3, 2012*

**Ratio**

A jar contains 2 red marbles,6 blue marbles,4 white marbles, and 12 black marbles. What is the ratio of white marbles to all marbles?
*December 3, 2012*

**Algebra2**

Find the center and radius of the given circle. 1. x^2 + y^2 + 10y + 21 = 0
*November 28, 2012*

**Algebra 2**

Energy Use Light Output 35 2250 50 4000 70 5800 100 9500 150 16000 What is the quadratic model for the light output with respect to use energy use? I dont understand this at all Please help ):
*November 27, 2012*

**Physics**

Examine the table below as the spearation distance is doubled ow much does the electrostatic forces decrease? 1 20.0 Cm 0.1280N 2 40.0 cm 0.0320N 3 60.0 Cm 0.0142N 4 80.0 CM 0.0080N 5 100.0 CM 0.0051
*November 26, 2012*

**math**

Mrs. Brock's class has 23 students. Each student has 8 markers. Which describes how to find the total number of markers in the class? a) Multiply the ones. Record; b) Multiply the tens. Record; c) Multiply the tens. Record. Multiply the ones. Record. Add the partial ...
*November 15, 2012*

**math**

Mrs. Brock's class has 23 students. Each student has 8 markers. Which describes how to find the total number of markers in the class? a) Multiply the ones. Record; b) Multiply the tens. Record; c) Multiply the tens. Record. Multiply the ones. Record. Add the partial ...
*November 15, 2012*

**Writing**

I am doing a journal review paper for Psychology. What are the implications of this work (i.e. what light does it shed on the particular topic related to psychology)? I do not understand the question. What is it asking me to do? Can someone explain the question so I am can ...
*November 14, 2012*

**Psychology**

I am doing a journal review paper. What are the implications of this work (i.e. what light does it shed on the particular topic related to psychology)? I do not understand the question. What is it asking me to do?
*November 14, 2012*

**math**

Write your answer using only positive exponents. 30u^-15/34u^-16
*November 7, 2012*

**math**

what is a millogram
*October 25, 2012*

**math**

thanks mrs. sue !!! you are the best you are an lifesaver!!! and just to be sure 2 and 7/8
*October 20, 2012*

**math **

Cassandra has a square photo that has lengths of 4 inches. She cuts 5/8 inch off the top and 1/2 inch off the bottom. What is the new height of the photo?
*October 20, 2012*

**Physics**

I got the correct answer for the thrower, but for the catcher to find the second velocity, I follow the formula but it still counts it as wrong. What could I be doing wrong?
*October 17, 2012*

**geometry**

Draw and label the following: segment AB intersects segment CD at point M. M is the midpoint of both segments. If AM = x2 + 8x + 17 and MB = 12x + 14, find AB.
*September 29, 2012*

**Psychology**

What are some examples of self-monitoring techniques? What are some examples of self-managing techniques? NOTE: I just need some ideas.
*September 25, 2012*

**Psychology**

So, just basically talking about myself?
*September 24, 2012*

**Psychology**

What am I suppose write about when I am asked to describe my self-concept? Note: Do NOT just give a link to the definition. I know what it means already.
*September 24, 2012*

**Math**

Sharon Tate words in six seconds at this rate how many words does she type in 4 minutes
*September 18, 2012*

**physics**

B. Assume the child is 1.2 meters tall and casts a shadow of 6.4 meters. Determine the angle of the sun at that moment.
*September 6, 2012*

**math **

three pies are cut into sixths .how many pieces will there be
*September 3, 2012*

**math**

how to simplify the following,please step by step 56x^7+21x^4+63x^3
*September 3, 2012*

**Algebra 1**

4x+(-9+3x)=-5
*August 27, 2012*

**chemistry**

Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules. In which cases do you expect deviations from the idealized bond angle?1.pf3 2.sbr2 3.ch3br 4.bcl3
*August 23, 2012*

**Math**

Juan had three pieces of stick. The longest one measured 64 cm and is twice as long as the other two pieces. Find the total length of the sticks.
*August 22, 2012*

**averages**

The answer is 70. First off if we want to know the LEAST possible value for a, then b, c, d, e have to be the MAXIMUM value. In this case it would be e=109, d=108, c=107, and b=106. Now that we have values for all the variables except a, we can solve for a. To solve for a, we ...
*August 7, 2012*

**math**

A person has invested $6000 . Part of the money is invested at 3% and the remaining amout at 4% . The annual income from the two investment is $225.How much is invested at each rate?
*July 24, 2012*

**Math**

What is the answer here? Find the sum of the biggest odd numbers formed by the digits 1 and 2 and the smallest even number formed by the digits 6,7,8
*July 20, 2012*

**algebra**

30% of 59
*July 19, 2012*

**Physics**

If you must stop your moving car in a hurry, should you slam on the brakes and lock them?
*July 16, 2012*

**Calculus**

Solve the equation (3^x)^2-12*3^x+27=0 Simplify and write without negative exponents: 3^2(x^-2y^3)^3/4^1/2*x^-4cuberooty^2
*July 15, 2012*

**Calculus**

Is the entire problem to the fourth power, or just the denominator?
*July 15, 2012*

**Calculus **

Write as a single logarithm of a single quantity ln(3)+1/2ln(x+2)-4ln(1+sqrtx)
*July 15, 2012*

**Chemistry 1046**

the answer should be ZrF4
*July 3, 2012*

**Physics**

y=1/2at^2| 5.9=1/2(9.8)t^2| 1.204=t^2| t=1.097s| ___________ x=t[(Vi+Vf)/2] x=1.097[(3.7+0)/2] x=2.03m
*June 10, 2012*

**chemistry**

aluminum has a density of 27g/cm3 if a chunk of aluminum with a mass of 16g is placed in a graduated cylinder partially filled with water how much will the water level rise
*June 7, 2012*

**spanish**

El domingo pasado, yo iba con mis amigos al cine. This says Last sunday, I was with my friends at the movie theater. It would be better if it said El domingo pasado fui al cine con mis amigos. Last Sunday I went to the movie theater with my friends.
*June 2, 2012*

**Spanish**

THE FIRST SENTENCE SAYS I did not speak with anyone in school. THE SECOND SAYS No, I spoke with nobody in the school ............................... I think the first is more correct.
*May 28, 2012*

**Spanish 8th grde**

¿Qué compraste la semana pasada? What did you buy last week? Compré una mochilla la semana pasada. I bought a backpack last week. ¿Bailaron Uds.? Did they dance. Sí, bailamos. Yes, we danced, (this depends on what type of spanish, latin ...
*May 28, 2012*

**5th Grade Writing**

its. because it's means it is. The horse hurt it is leg, doesn't make sense.
*May 17, 2012*

**physics**

the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire?
*May 17, 2012*

**math**

if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7
*May 17, 2012*

**math**

if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7
*May 17, 2012*

**math**

if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7
*May 17, 2012*

**logarithmic differentiation**

y= 4th root (x^2+1)/(x^2-1)
*May 14, 2012*

**Math**

If two number cubes are tossed, what is the probability of getting a sum that is less than 6, given that 1 number cube shows a 3 ?
*May 11, 2012*

**math**

The vertices of a triangle are listed below. H(-2,4), I(22,4), J(10,-1) Which of the following correctly classifies the triangle? 1.The triangle is an obtuse isosceles triangle. 2.The triangle is a right scalene triangle. 3.The triangle is an obtuse scalene triangle. 4.The ...
*May 4, 2012*

**chemistry**

what will be the boiling point 54.5 grams of aluminum sulfate dissolved in 805 grams H2O
*May 3, 2012*

**chemistry**

how many grams of sodium phosphate were dissolved in 382 grams of water in a 6.0 m solution
*May 3, 2012*

**Circuits**

In Circuits lab, we had to construct different types of operational amplifiers. The inverting and summing amplifiers produced similar output voltage to the calculated ones but were not negative. I was just wondering why they didn't reverse the sign in the experiment?
*April 30, 2012*

**Circuits**

In Circuits lab, we had to construct different types of operational amplifiers. The inverting and summing amplifiers produced similar output voltage to the calculated ones but were not negative. I was just wondering why they didn't reverse the sign in the experiment?
*April 30, 2012*

**Chemistry**

An aqueous solution contains 0.196 M hydrosulfuric acid and 0.190 M hydrochloric acid. Calculate the sulfide ion concentration in this solution. [S2-] = _________mol/L.
*April 24, 2012*

**Chemistry**

An aqueous solution contains 0.216 M ascorbic acid (H2C6H6O6) and 0.131 M hydrochloric acid. Calculate the ascorbate (C6H6O62-) ion concentration in this solution. [C6H6O62-] =______________ mol/L.
*April 21, 2012*

**statistics**

find the probability p(-1.14 < z < 1.01) using the normal standard distribution
*April 18, 2012*

**math**

your best friend ate 3/8 of a pizza from 4 diffrent pizza.how much pizza did he ate?
*April 18, 2012*

**Math**

for 6z=126, mike wrote that z=756. explain what mikes mistakewas. then tell the correct answer.
*April 9, 2012*

**physics**

true or false . refraction always involves a change in the speed and direction of a wave wat is required in order for diffraction to occur? wat causes wave interference?
*April 6, 2012*

**English**

Hughes received financial assistance from Charlotte Mason. In 1930, he broke away from Mason and her financial assistance to a. travel the world. c. to maintain his integrity. b. go back to college. d. to get married.
*March 29, 2012*

**math**

whats the prime factorization of 62
*March 28, 2012*

**chemistry**

calculate the mass of kool aid required to prepare 200.0 ml of 0.30 M kool aid
*March 26, 2012*

**Math**

89.28
*March 26, 2012*

**MATH**

SUBTRACT 4 4/7 AND 3 2/3
*March 21, 2012*

**Science**

a. a log, two feet in diameter
*March 12, 2012*

**math**

Solve for X 0.0421=0.0015-x/0.025+1/2 i'm lost
*March 9, 2012*

**Science**

put one white flower in a vase with 5 cups of water and one white flower in a vase with 5 cups of water with food coloring (red green blue yellow or any color) for one week. make sure you take pictures and write a few sentences on what you noticed (since he's only in ...
*March 5, 2012*

**Physics**

A 933 kg block is pushed on the slope of a 20 ◦ frictionless inclined plane to give it an initial speed of 50 cm/s along the slope when the block is 1.5 m from the bottom of the incline. The acceleration of gravity is 9.8 m/s 2 . 1.5 m 933 kg 20 ◦ What is the speed...
*March 4, 2012*

**chemistry**

Your percent
*February 29, 2012*

**Economics**

adam smith supported three different views of theory of value (are the followings correct, i will add them to my essay) 1. Labor cost: he supported that everyone must produce his own goods using own labor and exchange the surplus with other goods. In this model of society no ...
*February 25, 2012*

**chemistry**

How many iron atoms are in 0.32 mol of Fe2O3
*February 20, 2012*

**trig**

If cosecant of theta equals 3 and cosine of theta is less than zero, find sine of theta, cosine of theta, tangent of theta, cotangent of theta and secant of theta
*February 15, 2012*

**College Algebra**

A manufacturer of radios estimates that his daily cost of producing x radios is given by the equation C=350+5x. The equation R=25x represents the revenue in dollars from selling x radios. *Profit function,P(x)=R(x)-C(x),P(x)=20x-350 *How many radios should the manufacturer ...
*February 9, 2012*

**physics**

A ball rolls off a platform that is 5 meters above the ground. The ball's horizontal velocity as it leaves the platform is 4.8 m/s. (a) How much time does it take for the ball to hit the ground? (Use g = 10 m/s2.) . s
*February 1, 2012*

**CHEMISTRY**

Suppose you dump a 5-lb sack of sugar into Bellingham Bay. Assume the sugar disperses uniformly throughout all of the world’s oceans. Estimate how many molecules of sucrose would be found in each liter of sea water.
*January 27, 2012*

**chemistry**

Suppose you dump a 5-lb sack of sugar into Bellingham Bay. Assume the sugar disperses uniformly throughout all of the world’s oceans. Estimate how many molecules of sucrose would be found in each liter of sea water.
*January 27, 2012*

**Accounting**

Assets = Liabilities + Equity How can you tell which company have the strongest financial position? Is buy the highest in assets, highest in liabilities, or highest in equity? I am confused.
*January 26, 2012*

**Algebra II**

-12+4x/4
*January 25, 2012*

**Chemistry**

If you react 2.0 g AgNO3 and 2.5 g Na2SO4, what is the percent yield if the actual yield is 1.6 g Ag2SO4? 2AgNO3 + Na2SO4 → Ag2SO4 + 2NaNO3
*January 24, 2012*

**Physics**

billy and amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away. it takes amy 41 minutes to arrive at school. bill arrives 21 minutes after amy. how much faster (in meters/second) is amy's average speed for the entire trip?
*January 19, 2012*

**geometry**

Simplify the following ratio 12XY: 8x
*January 12, 2012*

**Spanish**

Mi Mama es bonita A Mi Me Gusta El Chocolate Yo Fui al parque ayer Mi mama y yo fuimos al parque A Mi me gusta jugar juegos.
*January 12, 2012*

**math**

is 3 times 41 120
*December 14, 2011*

**geometry**

An isosceles trapezoid has bases length 19 and 11 centimeters and length 13 centimeters. What is the area of the trapezoid to the nearest tenth?
*December 13, 2011*

**Spanish**

1.Voy a nadar en la piscina. Necesito(I aam going to swim in the swimming pool. I need) un ttraje de baño(bathing suit). 2.Está lloviendo mucho. Necesito (it is raining a lot. I need..). el impermeable y la sombrilla (a raincoat and umbrella.) 3.No puedo ver bien...
*December 2, 2011*

**Algebra 2**

thanks so much!
*December 2, 2011*

**Algebra 2**

How would you find the x intercepts of 2x^2+17=0. The original equation is 2(x-3)^2-1.
*December 2, 2011*

**Chemistry 1010**

Sorry I thought I was posting a question not an answer to your question!!
*December 1, 2011*

**Chemistry 1010**

What is the mass in grams of one mole of water
*December 1, 2011*

**physics**

a gate 6m wide requires a force of 5.2 kg.wt. applied at the end to open it. what force would have to be applied (A) at the middle and (B) at 1.5m from the hinges, to open it?
*November 20, 2011*

**Science**

yeah baby bring it on!
*November 15, 2011*

**Science**

I love you!
*November 15, 2011*

**Science**

____ are fuels made from renewble resources You have to use ___ to grow plants and extract ethanol 2 alternative biofuels are ___ and ___
*November 15, 2011*

**Science**

Definition for Biofuel,Hydroelectricity,Geothermal,and wind energy
*November 15, 2011*

**SOCIAL STUDIEs**

Eli Whitney revolutionized indusrty in the north and south and impacted the Civil War. What 2 key innovations is he attributed with?
*November 15, 2011*

**French**

Can someone to correct mistakes? Thank you! Le 4 septembre a été volé un vélo. Une fille avait laissé son vélo près d'un bar. Quand elle est sortie du bar elle a vu que son vélo avait été volé et ...
*November 15, 2011*

**math - earn interest**

LAURA INVESTED $5000 AT 3% COMPOUNDED SEMIANNUALLY.IN HOW MANY YEARS WILL LAURAS INVESTEMENT HAVE DOUBLE?
*November 7, 2011*