Friday

February 24, 2017
Number of results: 3,642

**Integral calculus**

Hello, this is the last question from my homework that I get stuck at: ∫ (5^3/x - (x^8 + 9)^1/3 ) / 3x^2 will u, for sub. be = x^8 + 9? Then du is = 8x^7 dx x^7 dx = 1/8 du from there I'm stuck. Thank you

*April 19, 2012 by Tommy*

**algebra 117b**

I am really stuck if you could me please with this problem y=kxto find yfor x=6 y=-65when x=9 -65=k.9 k=- this is where I get stuck

*July 17, 2012 by BERNIE*

**Algebra**

I am trying to find the equation to m= 8(3,2)This is what I did and then I get stuck, sorry m=8(3,2) y=2(8)(x-3) y=2x-? this is where I get stuck -24 or -5

*September 6, 2010 by Ziggy*

**math**

i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or "-" # = number y=3 (x-3)^2 + (y-4)^2 = 9 i substitute y (x-3)^2 + (3-4)^2 = 9 (x-3)^2 + 1 = 9 x^2 - 6x + 9 + 1 = 9 x^2 - 6x + 10 = 9 x^2 - 6x + 1 = 0...

*February 24, 2010 by larry*

**re:math**

i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or "-" # = number y=3 (x-3)^2 + (y-4)^2 = 9 i substitute y (x-3)^2 + (3-4)^2 = 9 (x-3)^2 + 1 = 9 x^2 - 6x + 9 + 1 = 9 x^2 - 6x + 10 = 9 x^2 - 6x + 1 = 0...

*February 24, 2010 by larry*

**Math**

I am stuck on a problem that has to do with the double angle formulas. I have to solve this: 4sinxcosx = 1. I tried using the formula 2sinu = 2sinucosu by substituting it in like this: 2(2sinxcosx)= 1 but then I am stuck

*December 6, 2010 by kathleen*

**math - ans.check**

Given function G(x)=-7/8(45-x), find x to nearest tenth, when G(x)=15 ____________________________________ I'm stuck on this question,i tries on my own but i couldn't get it right, plz help! 15=-7/8(45-x) -8/7(15)=45-x (-17.1428..)=45-x -> stuck at this step. Thank You!

*February 17, 2015 by troy*

**math**

394 cars, 57 trucks, and 23 buses ventured out in the snowstorm. 83 1/3% got stuck in the snow. How many vehicles got stuck?

*May 16, 2010 by Kriztin*

**algebra check please**

help i am stuck : -8 - 5y = 12 - 9y i got: -8-12 -5y = 12-12 - 9y -20 - 5y = 9y -20 +20 - 5y - 9y im so stuck idont understand this one can you please help me

*October 1, 2012 by marko*

**chemistry**

now am stuck on how to find the grams of X+Y=1.10 X for glucose and Y for sucrose i had 3.78=M0.08206*298 3.78/24.45=0.1546M 0.1546*0.025=0.003865 moles. now am stuck. help please

*January 24, 2010 by bf*

**Algebra-Pleasehelp-I'm so stuck!!**

Please help How do you graph the radical that is below negative of the sqrt(x+1) my teacher said we should set up x and y according to parent function. The endpoint of this would be (-1,0) How do I find the other points-I'm really stuck

*October 11, 2010 by Julia*

**MATH**

Adding and Subtracting Rational Expressions there are two problems I get stuck with towards the end. 1) 5n/3 + 4n/3 5n+4n/3 9n/3 now i get stuck, i think that I must factor it more but i am unsure, my teacher said I incorrectly distribute the signs? 2) 7/x-5 - 2+x/x-5 for this...

*March 29, 2007 by Roxxy*

**lit class**

we are really stuck on this one we searched the website that you suggested but are still stuck this is what we came up with is this correct punctuation? Jawaharlal Nehru, the first prime minister of independent India, said that, "culture is the widening of the mind and of the ...

*May 10, 2011 by joel*

**Quantum Physics**

Has anyone done Block 7-8 for TMA 6 for s103 - discovering Science, as i am struggling big time, any help would be much appreciated yes i am like you really phased by this how much of the tma have you managed to do Me, too what r u stuck on? I have been doing really well but ...

*February 27, 2007 by Adam*

**English- A Raisin in the Sun**

I'm stuck on these in A Raisin in the Sun: Why does Mama decide not to move? In what way does she show herself to be stronger than her children? I'm stuck, please help!

*September 1, 2007 by Anonymous*

**Calculus Help Stuck Part 2?**

b.Determine the lim x-->4 (x^2+x-20/8-2x) What Im stuck on is this f(4)= 4^2+4-20 / 8-2(4) f(4)= 0/0 x^2+x-20/8-2x = (x-4)(x+5)/-2(x-4) What do I do next I'm so confused ik i would eliminate the x-4 from numerator and denominator but what would i do with the -2 that belongs...

*April 11, 2016 by Marc*

**Physics**

The displacement of an object in SHM is given by y(t) = (7.1 cm)sin[(1.64 rad/s)t]. What is the frequency of the oscillations in Hz? I'm completely stuck here. I was thinking that frequency = 1/t. I'm stuck with the information given. Please help!

*March 22, 2010 by Angie*

**AlgebraII-Reiny could you please check-I'm stuck**

Sikve the following by using substitution method x=3y -5 6x-18y = -30 I got this far and I'm stuck 6(3y-5) - 18y = -30 18y - 30 - 18y = -30 -30 = -30 So this doesn't make sense anymore

*February 14, 2011 by JuliaAnne*

**geography**

I'm really stuck on my homework it says Geography can be divided into tree strands, phisical, human and enviromental. Explain what it means in your own words. I'm really stuck so could you help me please!!!!!!!!!!!!!!

*September 8, 2008 by Emily*

**Chemistry**

Sorry to post again but I'm really stuck on this one! I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to differentiate our unknown between an aldehyde or a ketone. The question I'm stuck on is " older...

*July 16, 2013 by hayley*

**Math**

1. Find all complex numbers z such that |z-1|=|z+3|=|z-i|, if i is the square root of -1. I got to the part where you graph the equations, but got stuck. 2. Find all cube roots of 8i. I know there are 3 answers, but I am stuck.

*February 24, 2017 by Elodea*

**I'm stuck- please help**

Hi everyone, I've been stuck on this question. Please anyone help. Show step by step and answers. Thank you. - Determine the quarter point of y=−cos(2x−π) THANK YOU.

*August 3, 2016 by chichi*

**graphing an equation**

I am getting stuck on graphing equations. when something says y=1/2x-4.....I am supposed to put in numbers for x. however, I am stuck on the concept of how to divide by the fraction. Lets say x=2 y=1/2(2)-4 I am totally stumped on if I need to make two into a fration or ...

*August 22, 2010 by Ryan*

**Technology**

A watchmaker would work with _____ measurements. a. standard b. precision c. indirect d. Swiss I'm a little confused on this question. I don't think it's A or D. I'm stuck between B and C, but I think it's C-indirect. Is there any tutor that is good in technology? Please help ...

*December 21, 2009 by y912f*

**math**

i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or "-" # = number y=x (x+1)squared + (y+1)squared = 6 i substitute y (x+1)squared + (x+1)squared = 6 x squared + 2x + 1 + x squared + 2x + 1 = 6 2x ...

*February 23, 2010 by larry*

**Algebra**

I have about 3 homework problem that I am stuck on! please help me. #1: The area of a rectangle is 16, and its diagonal is \sqrt{68}. Find its dimensions and perimeter. (x^2)+(y^2)=\sqrt{68} (x^2)+(y^2)=8.246 xy=16 y=16/x (x^2)+(16/x)^2=8.246 (x^4)+(96/x)=8.246 Then I got ...

*June 2, 2014 by Anonymous*

**Math-stuck**

I know that to find the height of a woman that has a tibia bone measuring 43.4 would be computed like this H(t)=0.984(t)+28.6, and I would arrive at this :69.5696, but I how would I prepare a function to figure out a womeans tibia in inches when she is 5 foot, 5 inches. I am ...

*December 3, 2009 by HGO*

**Quick english check**

15) I was stuck with so many needles that Shannon laughed and said, Now you understand what it feels like to be me!" What change should be made in sentence 15? A. Insert a colon after stuck B. Change that to then C. Delete the comma D. Insert the quotation marks before Now I ...

*March 18, 2015 by Anonymous*

**Algebra-Please help me!**

Hi, I'm totally stuck! Problem: sqrt(x-3) = sqrt (2) -sqrt(x) I know I square them to get them out of square roots but after that I'm stuck- answers: -25/8 25/8 no solution 1/8 Please show me how its done Thank you

*October 12, 2010 by Michelle*

**English writing**

1. Don't get stuck on yourself. * What is the meaning of 'stuck on'? 2. He applied/wore a heavy makeup. * Which word should I use, apply or wore? 3. Speak in full clear sentence. * Is this one OK? Don't we have to add 'a' before'full'? 4. Don't spin in your chair or let your ...

*October 24, 2007 by John*

**Math. (Check Answers) STUCK**

HI, I'm stuck on two questions(: Round the number to the thousandths place. 97093.113469 Is it 97093.113 < -- ? 97093.112 97093.114 97000 Without multiplying, determine the sign of the product. (19)(-2)(37)(-0.8)(112) Postive Negative <-- ? The product is zero

*November 25, 2014 by Kim*

**physics**

A 5.88 g bullet is fired vertically into a 0.9 kg block of wood. The bullet gets stuck in the block, and the impact lifts the block 0.87 m up. (That is, the block — with the bullet stuck in it — rises 0.87 m up above its initial position, and then falls back down.) Given g...

*August 9, 2011 by James*

**Math check 3**

f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question a.) -161/8 b.) 120/7 c.) 161/7...

*October 12, 2008 by Shawn*

**chemistry**

how many grams of NAOH are needed to make a 2.00 molal solution? I got stuck here 2.00 molal=2.00 mole/kg molecular weight of NAOH= 40g/mol (2.00 g/molecular weight x kg) x 40 g/mol= stuck thanks jim

*January 30, 2010 by Jim_R*

**Honors Chemistry**

We did a lab in class on Friday where we stuck a metal loop in various chemicals and stuck it in the flame of a Bunsen burner and we observed the flame's colors as the different metals went in. For every lab we do, we have to write a writeup which involves a graph. How could I...

*September 20, 2009 by Emily*

**MAth Im stuck on question can anyone help me ?**

Im stuck on this question can anyone help me ? I thought it was b but that's wrong Which situation can be modeled by tossing a coin 3 times A)choosing which one of sixteen teams will win a tournament? B)picking one of six math teacher, C)decide which English teacher of eight ...

*March 27, 2011 by Mikah*

**prealgebra**

IM stuck on a question. PLease help. A teacher is giving candy to his periods. First period gets 1/3 and 2nd period gets 1/4 and 3rd period gets 1/3 and finally 4th period gets 22 pieces. How many pieces did each period get? Im stuck!!

*August 31, 2011 by randy*

**Precalculus**

Given: f(x) = X^2-x evaluate: f(sqrt2 + 3) I have worked out this and am stuck: (sqrt2+3)^2 - (sqrt2+3) (sqrt2+3)*(sqrt2+3)- (sqrt2 +3) (sqrt2)^2+ 3sqrt2 +3sqrt2+ 9- (sqrt2+3) 2+6sqrt2 +9-sqrt2-3 and am stuck or wrong here. Ans= SQRT2+6sqrt2 all under radical

*February 11, 2014 by Steve*

**Geology**

1b - I have to draw a cross section showing the relationship with gabbro cutting across sandstone and schist with schist being the oldest. 1c - I have to write a brief geological history of the region starting with the oldest events. 200 words. Thanks Desmond I'm saving that ...

*April 29, 2007 by Desmond*

**Economics**

Ive been stuck on this forever now if someone could please walk me through it i was appreciate it: 1: Suppose John had a utility function of U=X^2/3Y^1/3 . Derive Johns demand function from his utility function showing all the necessary steps. i know that the MUx=MUy and first...

*September 18, 2007 by Brett*

**Maths**

keep getting stuck for integrate e^(bx) cos x i get = cos x e^bx/b - int -sin x e^bx/b = cos x e^bx/b - -sin x e^bx/b^2 - int - cos x e^bx/b^2 this is where i get stuck please help

*November 21, 2009 by Amelia*

**Pre-Calculus/Trig Check please and help**

Could someone please check the first one and help me with the second one. I'm stuck-Thank you 1.What are theroots of the following polynomial equation? (x+2i)(x-5)(x-2i)(x+8) = 0 I think the roots are -2i,5,2i,-8-you take out the roots as opposites of what are in the equaion ...

*September 5, 2011 by Tabitha*

**physics**

A tightly stretched "high wire" is 44 m long. It sags 3.8 m when a 56 kg tightrope walker stands at its center. What is the tension in the wire? 1 NIs it possible to increase the tension in the wire so that there is no sag? so far i know you do the inverse sin of (3.8/22) to ...

*January 9, 2011 by Haley*

**Physics**

Your car is stuck in the mud and two friends are helping you. One is pulling on your car with a force of 370 N at a 40 degree angle and the other is pulling with a force of 450 N at a 30 degree angle. A force of 725 N is required to remove the car. Is the car still stuck? ...

*October 29, 2010 by Anna*

**Calculus**

I know how to do this problem, but I'm stuck at the arc length differential. Set up an integral for the arc length of the curve. (Do not evaluate the integral) x=y^2ln(y), 1<y<2 dx/dy = 2yln(y) + y ds= sqrt (1 + (2yln(y)+y)^2 so far I have sqrt (1 + 4y^2ln(y) + 2[2y^2ln(...

*February 28, 2013 by Angie*

**Chemistry: gas law**

I'm here at a study group with Aaron and while he's stuck on that question, I'm stuck on this one... I think we're gonna take a break but I'd love if someone could help break this down for me. Carbon monoxide, CO, and hydrogen, H , react according to the reaction below. 2 CO(g...

*October 23, 2015 by sydney*

**Ap Chemistry**

I'm doing the calculations on the lab "Oxidizing Power of Laundry Bleach," and I'm stuck on one part. This is what I have so far: My average volume of sodium thiosulfate is 6.94 ML. I then converted that into moles and got 6.94X10^-4 moles. That means that NaClO is equal to ...

*October 30, 2011 by Hilary*

**Chemistry**

I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to differentiate our unknown between an aldehyde or a ketone. The question I'm stuck on is " older bottles of benzaldehyde are often contaminated with ...

*July 16, 2013 by hayley*

**physics**

A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley and then to ...

*March 18, 2013 by Nathalia*

**Psychology**

I am writing a paper and am stuck on one part can some give me an idea what i am needing. paper in which you analyze the function of emotions as motive. Be sure to address the following items on your analysis: This is the part I am stuck on Analyze at lease two research ...

*October 17, 2008 by TOM*

**Algebra 2**

Okay so for the question I'm posting has a pic with it but idk how I can attach it so you guys can see it because I know you'll need it to help me out cause I've been stuck on this question for awhile so please any kind of help would be great(: Which statements explain that ...

*October 12, 2016 by superstarrr*

**Algebra 2**

Okay so for the question I'm posting has a pic with it but idk how I can attach it so you guys can see it because I know you'll need it to help me out cause I've been stuck on this question for awhile so please any kind of help would be great(: Which statements explain that ...

*October 12, 2016 by Ms.Sue please help?*

**Math mrs sue**

Can you check these? 18% of 90 is what number? i got 16.2 what number is 41% of 800? i got: 1951.22 what number 5% of 522? i got : 10440 70% of 279 is what number? i got: 195.3 what number is 90% of 13? i got : 14.44 9% of 351 is what number? i got: 32 36% of 95 is what number...

*March 1, 2012 by Marko*

**9th grade**

Celia bought 12 apples, ate two of them, and sold the rest at 20 cents more per apple than she paid. Her total profit was $1.00. How much did she sell for each apple? I need help with this question. I know that this is a bought and sold question. I know that she bought 12 ...

*September 27, 2010 by Kendrick*

**math percents**

Can you check these? 18% of 90 is what number? i got 16.2 what number is 41% of 800? i got: 1951.22 what number 5% of 522? i got : 10440 70% of 279 is what number? i got: 195.3 what number is 90% of 13? i got : 14.44 9% of 351 is what number? i got: 32 36% of 95 is what number...

*March 1, 2012 by marko*

**military , math**

your squad just completed a 12 mile road march inf our hours flat. Althogether there were 15 check points, to include the road march completion point. what was the average time in minutes between checkpoints? 32 26.6 16 8 How many barrels does it take to hold 10,000 cubic feet...

*April 5, 2007 by jake123*

**Physics**

h t t p : / / i m g 2 0 5 . i m a g e s h a c k . u s / i / c a p t u r e b b . j p g / i am stuck on part c how do i find work with out using the spring constant work equals force parallel times displacement at which the force is acted during... Work done by spring = .5 kx^2 ...

*February 28, 2010 by Kate*

**Geometry**

Statement 1: “If she is stuck in traffic, then she is late.” Statement 2: “If she is late, then she is stuck in traffic.” Statement 3: “If she is not late, then she is not stuck in traffic.” Meg writes, “Statement 3 is the inverse of statement 2 and ...

*February 26, 2012 by Anonymous*

**engineering**

During drilling of a deep oil well, the drill pipe got rigidly stuck. It was necessary to determine the depth at which the jamming occurred. The engineer ordered the pipe subjected to a large upwards tensile force, i.e., she pulled on it. As a result, the top of the pipe came ...

*October 30, 2016 by Anonymous*

**geometry**

on a town map ,each unit of the coordinate plane represents a mile. Three branches of a bank are located at A(-3,1) , and C (4,-1). A bank employee drives from branch A to branch B and then drives halfway to branch C before getting stuck in traffic. what is the minimum total ...

*August 23, 2015 by she*

**Chemistry**

Please help me with this chemistry question? I am working on a lab report and I am stuck on this question: Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in chemistry. Propose a situation where precise amounts of ...

*September 8, 2009 by Jessie*

**military , math**

the emergency water storage capability your squad set up now holds 7,000 cubic feet of water. YOur commander has asked to fill it up. You estimate that a facility will hold 8,478 cubic feet. HOw many gallons are required to fill the facility? 11,055 74,470 63,415 52,360 I will...

*April 5, 2007 by jake123*

**Life Orientation**

Hi I am a matric learner and I am having trouble with an lo portfolio assignment. it is about environmental issues and im stuck. I need to identify and describe 3 environmental health hazards that cause ill health, accidents, crisis and disasters within my community or any ...

*May 1, 2013 by Ashley*

**Derivatives**

Find f'(x): (abs(((x^2)*((3x+2) ^(1/3)))/((2x-3)^3)) So I thought I should split it into two parts: A and B. A) (x^2)/((2x-3)^2) B) ((3x+2)^(1/3))/(2x-3) My plan was to differentiate each part and then multiply them together, since multiplying their denominators together gives...

*May 24, 2013 by Erika*

**College Algebra ..Please help**

I have about 5 homework problem that I am stuck on! please help me. The first of 5 is: A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? Im not even sure where to start with this one. Next #2: The area of a rectangle is 16...

*June 2, 2014 by Anonymous*

**physics**

A red bead releasd from rest at height H slides down a wire without sticking to a green bead initally at rest. The mass of the green bead is half that of the stuck together beads both continue to slide down the wire and then slide back up. With the starting height of the green...

*December 6, 2011 by Margaret*

**Physics**

In DESPERATE NEED OF HELP!!! An object of mass m = 10 kg and speed v = 2 m/s collides head on with a second object of mass m = 5 kg which has a speed v = 1 m/s. The objects stick together. There are no external forces on the two objects (note the given "v"s are the speeds, not...

*November 10, 2016 by Carl*

**Chemistry**

Hi,can I have your help? I'm just trying to solve a few Dilution Solution problems. I'm stuck on these two,and I wish you could help. Here's one: A 500 mL bottle of concentrated acetic acid is diluted to make a 5.0% solution. Find the volume of diluted that is prepared? ...

*December 8, 2010 by Cliff*

**algebra**

How do you do it?:( im stuck! y=-x+4 y=-1/5x

*April 15, 2010 by Rebecca*

**Algebra**

y^2 + 1/4 = -y how do i do this??? I'm stuck

*April 24, 2010 by Alyse*

**physics (Newton's Laws)**

Please help, A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley ...

*March 17, 2013 by Kathy*

**algebraII**

3b-2/b+1=4-b+2/b-1 please help me I'm stuck

*April 28, 2008 by brit*

**math stuck**

3/10 + 1/5 = 9/30 + 6/30 = 15/30 but it says that it is 0, or 1

*February 20, 2010 by Anonymous*

**math**

(5)/(x) - (2)/(x-3) = 0 5(x-3) - 2(x) = x(x-3) 5x-15-2x = x^2 -3x 3x-15 = x^2 -3x this is where i get stuck please help thanks

*October 31, 2010 by peter*

**Help! stuck on this math question**

3n/(n^2 -7n + 10) - 2n/(n^2-8n+15)

*March 14, 2013 by Mikayla*

**Math**

okay i got stuck on "5-x-x=-17"?

*June 3, 2013 by cheyenne*

**Chemistry**

I have had this question in my homework, and honestly I got stuck in these questions. I managed to convert 5.3g of Na2CO3 into moles, but then I got stuck and do not know what to do next to solve the question. If anyone knows how to work this out, help from anyone is greatly ...

*September 29, 2012 by Matthias*

**calc - limits**

I have been trying to figure out these limit problems and I get stuck on trying to move the function around to make it possible to solve. The first one is: lim sinx - cosx / tanx - 1 x--> (pi/4) All I've gotten so far is to replace tanx with sinx/cosx but I don't even know ...

*September 19, 2011 by terra*

**Trigonometry**

factor: 3n^2+14n-5. I'm stuck! (3n -1 )(n + 5)

*June 4, 2007 by Linda*

**math**

i have 2 questions im stuck on what is 5-2{4-(3y-4)} and then what is (x^-9)^6

*May 2, 2009 by jon*

**math**

what is 96=6x^2 come out to be. im stuck!

*October 31, 2009 by melissa*

**Precalculus**

please still stuck h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 2 3 2 6 8 8 0

*April 26, 2010 by Kate*

**algebra**

solve by elimination 3x+4y=2 6x+8y=4 stuck!!

*July 21, 2010 by help*

**Inter algebra**

help, I am stuck on this one. -ã(7c)^2

*March 1, 2011 by Jackster*

**Maths**

Stuck! Help! 2.5 cubed? Xxxxx

*August 22, 2011 by Ellen*

**Calculus**

Stuck on this problem. Please help! 1+u^4/u du

*December 11, 2011 by Stacy*

**stuck**

9) x y 0 0 1 3 2 12 3 27 a.What type of function is this? b.What is the value of x=5?

*May 21, 2012 by Anonymous*

**Algebra Divide**

x^8+x^5/x Please help im stuck

*June 7, 2012 by Adriana*

**algebra 117**

I am stuck on this one 3/x^2+x-6, x=3

*July 17, 2012 by BERNIE*

**Honors English**

I'm totally stuck on 1-5. Help?

*September 26, 2012 by Jessica*

**Math Statistics**

I am stuck can someone help me 19.2 - 21.1 ---------- 3.18 \/25

*October 6, 2012 by Misty*

**algebra 2**

HOW DO I CHANGE 176FT^3 TO YD^3 I AM STUCK

*January 21, 2013 by bernie*

**Chemistry**

heat of combustion of propane c3h8, 2220KJ/mol. the specific heat of copper is 0.385 J/g*C. How many grams of propane must be burned to raise the temperature of a 10.0kg block of copper from 25.0 C to 65.0 C,assuming none of the heat is lost to the surroundings I'm stuck on a ...

*March 30, 2015 by Cassandra*

**Help Please - Science**

I'm stuck on this thing in science. It's a lab report so its kinda hard to explain. We did a topographic map experiment. We had a big rock, and put it in a plastic bin. We then marked centimeters on the bin and filled water to the first centimeter. We drew the water line on an...

*November 13, 2007 by Alex*

**math**

Can someone help me finish this problem I am stuck! 5/4x+1/8x=11/8+x 10/8x+1/8x=11/8+x 11/8x=11/8+x 19/8x=11/8

*January 7, 2009 by deedra*

**science**

what is thermal energy plz help me stuck!

*January 29, 2009 by Alex*

**Algebra**

Simplify: 6t^3/t^2 - 12t/2t I'm stuck, please help!! : (

*February 10, 2010 by Nadia Samim*

**Math**

I'm doing homework and stuck on this question: What percent of 3 1/3 is 3?

*May 20, 2010 by Leah*

**Math**

Probably quite easy but I am stuck :/ 3d+6e

*June 18, 2010 by Eloise*

**math**

Stuck on solving this inequality, help please. 3X le 15 and 2x gt -6

*February 10, 2011 by marco*