Wednesday

December 7, 2016
Total # Posts: 1,278

**algebra **

(3x^2-2x-1) - (5x^2+4x+2)

*June 3, 2013*

**algebra**

I think your wrong A=lxW w=x l=2x+1 So it should be something like A=( ) ( ) and that's the part I don't understand

*June 3, 2013*

**chemistry**

18.5g Al is submerged in 20.2g of water with a total temperature of 27°C. How much energy in joules is absorbed by the Al if the temperature changes to 32°C ?

*May 28, 2013*

**Statistics**

X Y 0 23 2 27 2.3 29 4.1 32 5 35 What is the correlation for this data set? 10) Find the regression line for this data set.

*May 25, 2013*

**math**

what is a data

*May 9, 2013*

**math**

finding the average

*May 9, 2013*

**math**

finding the mean

*May 9, 2013*

**Algebra**

Evaluate the determinant of the matrix. [-4 5 6 0 4 4 -2 -5 4]

*April 19, 2013*

**Algebra 2 variables**

Find the values of the variables. [-12 -w^2] = [2k -81] [2f 3] [-4 3] Show your work?

*April 19, 2013*

**Algebra 2**

Find the sum [1 4] [0 0] [0 3] + [0 0] A - [1 4] [0 3] B - undefined C - [0 0] [0 0] D - [1 0] [4 3]

*April 19, 2013*

**chemistry**

1.1x10^4m/s

*April 14, 2013*

**math**

evaluate the expressions below and leave them in radical form. 1. sin(pie symbol/6)csc(pie symbol/6) 2. sec(pie symbol/3)cos(pie symbol/3)+tan(pie symbol/3)cot(pie symbol/3)

*March 30, 2013*

**science**

thank you.

*March 27, 2013*

**science**

plz delete after 20 minutes of answering

*March 27, 2013*

**algebra**

A store mixes kenyan coffee worht $12 per kilogram and turkish coffee worth $16 per kilogram the mixture is to sell for $14 per kilogram how much of each should be used to make a 348-kilogram mixture?

*March 18, 2013*

**Math**

express 5 minutes 15 seconds in seconds

*March 14, 2013*

**Spanish**

how old am I

*February 17, 2013*

**Science**

How do you find the hours of daylight ?

*January 30, 2013*

**Algebra 2 **

The Formula s= sqrt 30fd can be estimated the speed of s, in miles per hour that a car is traveling when it goes into a skid, where f is the coefficient of friction and d is the length of the skid marks in feet. Kody skids to a stop on a street with a speed limit of 35 mi/h. ...

*January 21, 2013*

**4th grade math**

you find a common denominator, which is 4 in your case, and because you multiply 2 by 2 you have to multiply 41 by 2 as well, so you get 82/4-1/4, ok or do you need more help?

*January 20, 2013*

**Microeconomics**

Explanation: a. Total surplus is the area bounded by points a, b, and c. To calculate total surplus, we use the following formula for the area of a triangle: Area = ½ × Base × Height. The area between the demand curve and the supply curve for the quantity ...

*January 19, 2013*

**Microeconomics**

ADVANCED ANALYSIS Assume the following values for the figures below: Q1 = 20 bags. Q2 = 15 bags. Q3 = 27 bags. The market equilibrium price is $45 per bag. In Figure (a), the price at point a is $85 per bag. The price at point c is $5 per bag. The price at point d is $55 per ...

*January 19, 2013*

**math**

In the xy-coordinate plane, the distznce between point B(15,7) and point A(x,15) is 17. What is one possible value of x?

*January 19, 2013*

**science project**

I'm trying to find information on does lung capacity depend on height

*January 18, 2013*

**Reading/Language Arts**

Did i rewrite my paragraph right.Also thank you for your help

*January 12, 2013*

**Reading/Language Arts**

the energy we get to heat up the house and run our appliances is a energy solar panel.And it has an adverse affect on it do to the heavy snow fall.The apparatus does not generate enough energy do to lack of sunlight. And we need that energy to power our house for heat hot ...

*January 12, 2013*

**Reading/Language Arts**

The energy we get to heat up our house and run our appliances. Is a solar panel and is a necessity to live an everyday life. Do to a adverse affect on the solar panel caused by to much snow. The apparatus does not get enough sunlight to generate electricity. That the house ...

*January 12, 2013*

**Reading/Language Arts**

I,m writing a paragraph about using resources responsibly.And I have to use three vocabulary words adverse,generate,apparatus. And this is what I wrote. The energy to the house I live in has had a adverse affect.Do to the apparatus not getting enough sunlight to generate all ...

*January 12, 2013*

**reading/language arts**

write a paragraph about using resources responsibly using these three words:renewable,nonrenewable,generate.

*January 11, 2013*

**greenhouse biology**

what organism is a porkaryotic cell?

*January 11, 2013*

**Math**

700 eggs will be needed

*January 9, 2013*

**Government**

I don't know.

*January 8, 2013*

**Government**

What are the duties of congressional committees?

*January 8, 2013*

**Government**

They are in the system of goverment letting each branch keep each other in balance so none of the branches gets too powerful

*January 8, 2013*

**Government**

Identify checks and balances.

*January 8, 2013*

**Government**

thank you.

*January 8, 2013*

**Government**

A progressive tax is a tax whose rate increases as the payers income increases? if individuals who earn high incomes have a greater proportion of their incomes taken to pay the tax? A regressive tax is one whose rate increases as the payers income decreases?

*January 8, 2013*

**Government**

Explain progressive and regressive taxes.

*January 8, 2013*

**Government**

Explain the social contract theory.

*January 8, 2013*

**Government**

Who works on the federal budget?

*January 8, 2013*

**Government**

List one of the unalienable rights.

*January 8, 2013*

**government**

Describe the different types of primaries.

*January 8, 2013*

**government**

How do the duties of the Lieutenant Governor compare to those of the vice president?

*January 8, 2013*

**Math**

my answer doesnt show good. I have to fix it.

*December 27, 2012*

**Math**

4 5/6 } 5/6 + 3 2/3 } 2 * 2 = 4 ________ - - 7 3 * 2 = 6 Now add 5 + 4 9 - - = - 6 6 6 Now as you see the number has become an improper fraction . So now you do this: A: 9 9 3 7 - = - = 9 - 6 = 3 = 8 - = 6 6 6 1 8 - 2 1 8 - is your answer because when you are 2 changing an ...

*December 27, 2012*

**Math**

May you explain how did you get the 20/56 and the 15/56 . I do not know what you did there . Answer back please .

*December 26, 2012*

**Math **

Madison spent 5/8 of her savings on a microwave oven and a refridgerator. She used 4/7 of the amount she spent to buy the refrigderator. The refridgerator cost $280 more than the microwave oven. How much savings did Madison start with ?

*December 26, 2012*

**Math**

Thank you, Ms. Sue.

*December 26, 2012*

**Math **

Jaden wants to cover the floor with square tiles the same size. The floo measures 315 inches by 108 inches. If she uses only whole tiles, find A) the greatest possible length of each tile B) the number of tiles needed to cover the floor.

*December 26, 2012*

**Math**

Um... I really didn't understand you very clearly. So can you like go through this so I can understand cause I'm not really fimillar with algerbra.

*December 26, 2012*

**Math**

At a festival, 2/7 of the number of girls was equal to 3/5 of the number of the boys. There were 165 fewer boys than girls, how many children were at the festival in all?

*December 26, 2012*

**Physics**

Two 0.4 kg soccer balls collide elastically in a head-on collision. The first ball starts at rest, and the second ball has a speed of 3.5 m/s. After the collision, the second ball is at rest. A.) What is the final speed of the ball? B.) What is the kinetic energy of the first ...

*December 17, 2012*

**Algebra**

3x2+x+2

*December 10, 2012*

**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 don't 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*