Wednesday

April 16, 2014

April 16, 2014

Number of results: 42,386

**physics**

Fb=15.6kg * 9.8N/kg = 152.88N @ 0 deg.= Force of the block. Fp = Fh = 155.88sin0 = 0N = Hor comp of block. Fv = 155.88cos0 = 155.88N = Force perpendicular to plane. Applied Force: Fap = 72.2N @ 34.8deg. Fh = 72.2cos34.8 = 59.29N. = Hor comp of applied force. Fv = 72.2sin34.8...
*Friday, February 25, 2011 at 5:02pm by Henry*

**math**

3/7x+5=8. I tried to cross-mulitplied and I got 3x+35=8. I divided -27 by 3 and I got -9. Is this right? Not quite. Given 3/7x + 5 = 8 Multiply through by 7x yields 3 + 35x = 56x 3 = 21x making x = 1/7.
*Thursday, November 1, 2007 at 4:26pm by tchrwill*

**math**

Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Why or why not? Write an inequality for your classmates to solve. In your inequality, use both the multiplication and addition properties of ...
*Monday, September 28, 2009 at 7:29pm by Anonymous*

**algebra**

Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Why or why not? Write an inequality for your classmates to solve. In your inequality, use both the multiplication and addition properties of ...
*Monday, November 30, 2009 at 9:09am by Anonymous*

**precalc**

wait, I still end up with the wrong answer. I end up with 4(x-5)^2/-120 - 9(y+2)^2=-120 9 can't go into -120 My procedure: (4x^2-40x)-(9y^2+36y)=-100 4(x^2-10x +4)-9(y^2 +4 +4)=-100+ 4(4)-9(4) 4(x-5)^2-9(y+2)^2=-120 (x-5)^2/-30 - ? 9 can't go into -120 evenly
*Saturday, January 14, 2012 at 1:20am by 95*

**algerbra 2**

if a jet printer prints an articlae in 12 minutes and a laser printer prints the same in 29 minutes if they work together how many minutes
*Tuesday, April 19, 2011 at 1:47pm by Anonymous*

**Momentum Problem**

A cart of mass m1 = 15 kg slides down a frictionless ramp and is made to collide with a second cart of mass m2 = 23 kg which then heads into a vertical loop of radius 0.21 m. (a) Determine the height h at which cart #1 would need to start from to make sure that cart #2 ...
*Wednesday, November 3, 2010 at 5:39pm by Jessica*

**Legal Studies URGENT**

Hi beautiful people I need help incorporating the Police Powers and Responsibilities Act OR the Queensland Criminal Code into an argument about victimless crime. My two issues are currently the role of paternalism in the legal system and at what point the law has the right to...
*Wednesday, September 14, 2011 at 1:18am by Em*

**English**

Help with Analogies and suggest me other ways to write them please. Thanks 1)Smart people keep quiet about what they know, but stupid people advertise their ignorance.Changed into:Good drivers are hindered to show their driving skills, while reckless drivers show off their ...
*Tuesday, October 5, 2010 at 5:56pm by Angelina*

**physics**

An 8 g bullet is shot into a 4.0 kg block, at rest on a frictionless horizontal surface. The bullet remains lodged in the block. The block moves into a spring and compresses it by 7.9 cm. The force constant of the spring is 1400 N/m. What is the impulse of the block (including...
*Tuesday, November 6, 2012 at 8:20pm by Zach*

**CHEMSITRY**

IN THIS EXPERIMENT YOU FILL A PREFROM WITH WATER AND PUT A DRINKING STRAW INTO THE PREFROM AND USE CLAY TO SEAL THE OPENING. It is important to recall that when you first tried it, you were unable to drink, but a small amount of water entered the straw. When the water goes ...
*Thursday, May 20, 2010 at 12:17pm by POPCORN*

**physics**

what is the impact speed when a car moving at 200 km/h bumps into the rear of another ar traveling in the same direction at 84km/h? answer in km/h Wouldn't the be the relative speed of each (200-84) as compared to the other? Thats what I initially tried too, but when I tried ...
*Monday, September 18, 2006 at 8:51pm by cham*

**intro to statistics**

a vending machine dispenses coffee into an 8 oz cup. the amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 oz.you can allow the cup to overfill 1 percent of the time. what among should you set as the mean amount of coffee to be ...
*Wednesday, October 29, 2008 at 2:38pm by jennifer*

**CHEMISTRY**

The specific heat capacity (cp) of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 °C to 37 °C? a. 2.0 b. -0.13 c. 0.13 d. 29
*Sunday, May 9, 2010 at 11:21am by GRACE*

**CHEMISTRY**

The specific heat capacity (cp) of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 °C to 37 °C? a. 2.0 b. -0.13 c. 0.13 d. 29
*Sunday, May 9, 2010 at 11:22am by GRACE*

**English**

This is about Sound and Fury- Dan Greenburg Where is Greenburg's point stated in his essay and what is his point? How would the meaning be different if Greenburg had ended his essay with paragraph 29?
*Sunday, September 11, 2011 at 9:09pm by Karla*

**Physics**

angular momentum of system remains zero I w = m v r 180 kg m^2 * w = 23 kg * .6 m/s * 3 m so w = .23 radians/second v merry = .23*3 = .69 m/s away from boy so .6 + .69 = 1.29 m/s
*Monday, June 18, 2012 at 7:33pm by Damon*

**physics**

A 0.0309-kilogram ball is stuffed into a spring gun and shot up into the air at some angle. The gun's spring has a force constant of 92.5 N/m and is initially compressed 0.138 m. When the ball reaches maximum height, it has a horizontal velocity with a speed of 2.23 m/s. How ...
*Monday, November 11, 2013 at 9:41pm by Physics*

**US History II**

Yes. The Vietnam War split many Americans from their family and neighbors. Many were totally against the war and didn't hesitate to voice their opinions. Also -- at the same time, the Civil Rights movement also divided the country.
*Sunday, July 11, 2010 at 7:34pm by Ms. Sue*

**History help: check answer**

5. What issue led to the construction of the Berlin Wall? A.) new American intervention in Europe *B.) Soviet attempts to control all of Germany C.) the removal of U.S. troops from Berlin *D.) U.S. refusal to recognize a divided Germany Not sure if it's B or D.
*Thursday, March 7, 2013 at 3:31pm by Cassie*

**phyics**

A mechanic pushes a(n) 3980 kg car from rest to a speed of v, doing 5107 J of work in the process. During this time, the car moves 29.3m. Neglect friction between car and road. Find the speed v. Answer in units of m/s.
*Sunday, February 27, 2011 at 10:33pm by leslie*

**ACCOUNTING**

In its financial statements, Trio uses straight-line depreciation with the half-year convention. The book value of the equipment at December 31, 2006, will be: a $29,000. b $35,000. c $31,000. d Some other amount.
*Monday, April 4, 2011 at 2:55pm by Anonymous*

**math help!**

A lottery game asks you to pick 5 numbers from the set 1, 2, 3, ... , 29, 30. How many ways are there to play this lottery game? (Assume that this is a game where the order of your picks does NOT matter.) A) 27,405 B) 84,825 C) 593,775 D) 142,506
*Saturday, April 16, 2011 at 10:28pm by BreAnna*

**Physics**

Sherlock Holmes examines a clue by holding his magnifying glass (with a focal length of 29.8 cm) 10.4 cm away from an object. Find the image distance. Answer in units of cm Find the magniﬁcation.
*Sunday, April 1, 2012 at 10:29pm by angel*

**Mathematics**

A man received an invoice for a leaf blower for $478 dated April 17 with sales terms of 4/10 EOM. How much should he pay if he pays the bill on April 29? is it - 478-(478*4/100)= $458.88
*Tuesday, December 17, 2013 at 12:48pm by Abby*

**Algebra check**

Where appropriate, include the approximation to the nearest ten-thousandth. 27.) log x = -3 I have the answer as 1 28.) 7 ^(4-9x)= 49 I have the answer as 2/9 29.) 8^x =5.2 not sure 30.) 1n x=5/8 not sure Are these answers right?
*Monday, December 1, 2008 at 3:36pm by Shawn*

**mrs SUe Algebra check**

I cant figure this out 6 /2 * 8-8 /2 +4 i got 6/2 * 8-8 /2 3*8 4 24 -4 = 20 is this right way? 29 - (3+5) *2 +3 i got 16 is that right? 5-[6+3(-40/8) + (-2)exponent 2 i got 9 x5 = 45 + 4 = 5 -49 = -44 is that correct? [-6*(2-4)]/(-2)-(-9) i got -1.71
*Tuesday, October 11, 2011 at 9:06pm by marko*

**physics**

Maximum elevator load = M*g, where M is the mass of passengers and/or freight. Require that (500 + M)*(g + a) = 1.5 * Tmax (500 + M)*12.05 = 29.4*10^3 N Solve for M. M = 2440 kg Divide M by 75 kg for the maximum number of people.
*Friday, October 14, 2011 at 12:19am by drwls*

**Chemistry**

I am very confused about how to start this problem: A 29.8 mL sample of 0.354 M methylamine, CH3NH2, is titrated with 0.231 M hydrochloric acid. The pH before the addition of any hydrochloric acid is ?. The Kb of methylamine is 4.2x10^-4
*Saturday, April 28, 2012 at 5:53pm by Dan*

**calculus**

The salaries at a corporation are normally distributed with an average salary of $29,000 and a standard deviation of $4,000. Sixteen percent of the employees make more than Sara. What is Sara's salary? Round your answer to the nearest dollar.
*Tuesday, June 5, 2012 at 7:06am by Sam*

**Physics/Astronomy**

Predict the size of the image of Jupiter if photographed at opposition with a lens having a focal length of 9600 mm ( Assume Jupiter is a disk of 1.43 x 10^5 km and is 6.29 x 10^8 km from the earth).
*Monday, April 22, 2013 at 6:15pm by Blake*

**Optics/Physics**

Predict the size of the image of Jupiter if photographed at opposition with a lens having a focal length of 9600 mm. (Assume Jupiter is a disk of 1.43 x 10^5 km and is 6.29 x 10^8 km from the Earth.)
*Tuesday, April 23, 2013 at 1:55pm by Blake*

**physics**

view the setup from the side, with the line joining the light source and the center of the ball perpendicular to the wall. Then, if the light is x cm away from the wall, using similar triangles, x/29.5 = (x-127)/12.3 x = 217.8 cm
*Saturday, September 14, 2013 at 2:43pm by Steve*

**Physics**

A small block of mass m = 194 g is released from rest at point A , along the horizontal diameter on the inside of a hemispherical bowl of radius R = 29.5 cm, and the surface of the bowl is rough. The block's speed at point B is 1.56 m/s.
*Wednesday, October 2, 2013 at 11:59am by Leticia*

**physics**

A fireman, 29.1 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 48.5° above the horizontal. If the speed is 51.6 m/s, at what height will the stream of water hit the building?
*Tuesday, January 21, 2014 at 8:31pm by John*

**physics**

Consider a swimmer who wants to swim directly across a river as shown in the figure below. If the speed of the current is 0.29 m/s and the swimmer's speed relative to the water is 0.64 m/s, how long will it take her to cross a river that is 14 m wide?
*Tuesday, February 4, 2014 at 9:15pm by sarah*

**Algebra 1**

1.Bananas are usually 49 cents a pound. This week they are on sale for 29 cents a pound. What is the percent off? 2.Lydia paid $32 for a book that was originally $43. What is the percent discount. I got 1.59% 2.74%
*Monday, February 10, 2014 at 5:08pm by Anonymous*

**Algebra**

heck, the answer to the 2nd part provides the answer to the first part: x y ∆y 1 3 2 10 7 3 29 19 4 66 37 5 127 61 6 218 91 as you can see, x has to increase less and less for y to double.
*Wednesday, April 2, 2014 at 10:31pm by Steve*

**Algebra**

Your nonuse of grouping symbols is annoying. I think you meant this: (d+8)/(d-9) divided by (9d+72)/(c-7) well, multiplication is reciprocal of division, so your problem becomes (d+8)/(d-9) multiplied by (c-7)/(9d-72) or (d+8)(9d-72)/((d-9)(c-7) or 9(d+8)(d-9)/((d-9)(c-7)) or ...
*Sunday, August 8, 2010 at 9:34pm by bobpursley*

**Math**

Luis = a + 10 Luis + 1 = 3a Substitute a+10 for a in second equation and solve for a. Insert that value into the first equation and solve for Luis. Check by inserting both values into the second equation.
*Sunday, June 26, 2011 at 5:37pm by PsyDAG*

**College Chemistry**

HA ==> H^+ + A^- Ka = (H^+)(A^-)/(HA) A) pure HA. Set up ICE chart for pure HA, substitute into Ka expression, solve for (H^+) and convert to pH. B) moles HA initially = M x L = ?? moles NaOH at 19.5 mL = M x L = ?? Subtract mols HA - moles NaOH. The difference is the ...
*Tuesday, April 13, 2010 at 1:11am by DrBob222*

**Math**

What is divisor? What is dividend? If x is divided by y, x is the dividend and y is the divisor.
*Sunday, January 21, 2007 at 6:59pm by Kaveri*

**math**

2*x+c+1-31=0 2*x=31-1-c =30-c Divided with 2 x=(30-c)/2
*Tuesday, October 19, 2010 at 7:51pm by Bosnian*

**math**

X Mod 5 is the remainder when X is divided by 5. (3+4)+1 (mod 5) = 7+1 (mod 5) = 8 (mod 5) = 3
*Sunday, November 14, 2010 at 7:50pm by MathMate*

**math**

12/5 divided by 10/4 = 12/5 * 4/10 = ?
*Friday, May 20, 2011 at 12:28am by PsyDAG*

**math**

16 to power 1/4 divided by 16 to the power 1/2 ?
*Tuesday, August 21, 2012 at 4:50am by TUHITUHI*

**electrical circuit**

When a second light bulb is wired into an electric circuit already containing one light bulb, the first one dims. What kind of circuit is the light bulb wired into? open circuit! Yes! No. The bulb is wired into a SERIES circuit. If the first bulb did not dim and the second ...
*Wednesday, June 14, 2006 at 10:36am by Lee*

**college Math**

Ho: µ = 40 --->meaning the population mean is equal to 40. H1: µ < 40 ---> meaning the population mean is less than 40. This will be a one-tailed test because the alternative hypothesis is showing a specific direction. Use a z-test. Find the significance level for a ...
*Monday, December 7, 2009 at 8:30pm by MathGuru*

**physics**

A 4.7 g bullet is fired horizontally into a 0.50 kg block of wood resting on a frictionless table. The block, which is attached to a horizontal spring, retains the bullet and moves forward, compressing the spring. The block-spring system goes into SHM with a frequency of 8.0 ...
*Thursday, June 28, 2012 at 12:10am by Tom*

**6th grade**

Day 30: 6 inches Day 29: 3 inches Day 28: 1 1/2 inches
*Thursday, November 18, 2010 at 9:30pm by Ms. Sue*

**ALGEBRA :/**

It would help if you proofread your questions before you posted them. "Other angles"? Let A = first angle and B = second angle. A + B = 90º A + B/2 = 83º Subtract second equation from the first. B/2 = 7º B = 14º Insert that value into the first equation and solve for A. Check ...
*Tuesday, May 17, 2011 at 7:20pm by PsyDAG*

**Pre-Algebra**

So their profits should be divided in the ratio of 9 : 7 : 4 so X will get 9/20 x 4800 Y will get 7/20 x 4800 Z will get 4/20 x 4800 I will let you do the 'button-pushing'
*Monday, June 14, 2010 at 10:03pm by Reiny*

**math**

8 inches becuse an equilateral triangle has equal sides and there is 3 sides. plus 24 inches divided by the 3 sides is 8 inches.
*Sunday, December 12, 2010 at 2:07pm by Anonymous*

**physics**

Divide the energy acquired at the top of the hill (kinetic PLUS potential) buy the leapsed time (15.7 s). Energy divided by time equals power. P = [(1/2)MV^2 + M g H]/15.7 s g = 9.8 m/s^2 H = 49.0 m
*Saturday, March 1, 2008 at 12:38pm by drwls*

**algebra/ inequalities**

Damon, Thanks for the help. Let me see if I get it now. So, -2x < -4 divide both sides by -2 answer is x > 2 I had x < 2, but I reverse the sign since I divided by a -2 on both sides, correct?
*Thursday, April 17, 2008 at 8:46pm by lauren*

**algebra/inequalities**

Damon, Thanks for the help. Let me see if I get it now. So, -2x < -4 divide both sides by -2 answer is x > 2 I had x < 2, but I reverse the sign since I divided by a -2 on both sides, correct?
*Thursday, April 17, 2008 at 9:40pm by lauren*

**algebra/inequalities**

Damon, Thanks for the help. Let me see if I get it now. So, -2x < -4 divide both sides by -2 answer is x > 2 I had x < 2, but I reverse the sign since I divided by a -2 on both sides, correct?
*Thursday, April 17, 2008 at 9:44pm by lauren*

**math**

the mean of the 15 numbers is 132 divided by 15 = 8.8 which is 8 8/10 and the last part of the question which is question e) what is (median - mean=) since my teacher didn't say to reduce it to simplest form should I do it anyways??
*Friday, September 4, 2009 at 5:01pm by Anonymous*

**Chemistry**

Here's how I worked it: P= ? n= 0.0155 mol v=206mL so .206L t=30C +273 is 303K then 0.0155mol *0.0821 L*atm/mol*K *303K divided by .206L which gives you 1.87 mmHg What did I do wrong?
*Saturday, December 3, 2011 at 7:06pm by Lisa*

**Math**

Divide 3/4 to both sides. 8 divided by 3/4 is the same as 8*4/3. To divide you have to learn this trick called copy dot flip( basically multiplying the multiplicative inverse) for example the multiplicative inverse of 6/7 is 7/6
*Thursday, September 26, 2013 at 8:34pm by Kathleen*

**math**

a number of teachers were to receive 6 pens each ,but needed 4 more pens for them to be equally divided.if each teacher received 9 pens, 25 more pens would be necessary.how many pens are there
*Saturday, August 18, 2012 at 2:49am by don *

**algebra**

solving 2 equations means you want the y of one equation to be equal to y of the other, and the same for the x's so y = y 5x-9 = 4x+1 5x - 4x = +1 + 9 x = 10 sub that back into either of the originals y = 4x+1 y = 4(10) + 1 y = 41 notice you would have gotten the same y had ...
*Friday, May 14, 2010 at 10:56pm by Reiny*

**math**

how would I write 145% as a fraction? it would be 145/1000 could you by any chance help me with my question it is between luke and dogauls question thanks Julie is incorrect 145/100 reduce to 29/20
*Thursday, May 31, 2007 at 8:32pm by Amber*

**college physics**

A = a*(-1, 0)^T B = b*(cos(27°), sin(27°))^T C = 27*(cos(39°), -sin(29°))^T By using the identity imposed on us by the task, we immediately obtain the result by solving the emerging L.E.S..
*Monday, February 8, 2010 at 2:04pm by dongo*

**math**

looks like an arithmetic series where a = 10, d=2 and n=30 sum(30) = (30/2)[2(10) + (29)(2)] = 15[20+58] = 1170 (using the standard formula for the sum of n terms)
*Sunday, April 18, 2010 at 3:24pm by Reiny*

**physics**

A students on a balcony uses a slingshot to shoots rock straight up at 29.4 m/s. If the rock takes 8.0 s seconds to hit the ground below the balcony, how high is the balcony above the ground?
*Thursday, January 20, 2011 at 10:24pm by Anonymous*

**Math Trivia! :)**

When you are adding how much then friends paid, you said each paid $9 for a total of $27. Why are you adding $2 to that amount ? The $2 are not part of the room payment, so adding 27 + 2 = 29 becomes a meaningless calculation.
*Sunday, February 13, 2011 at 7:27pm by Reiny*

**physics**

An 95.0-N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 29.0° to the ground. (a) What is the normal force exerted on the crate by the ramp?
*Sunday, February 3, 2013 at 2:09am by gangam style*

**Math-System of Equations**

From the 3rd: y = -2z-7 in the 1st: 2x - 3(-2z-7) - z = 2 2x +6z +21 - z = 2 2x + 5z = -19 (#4) in the 2nd: -2z - 7 - x + z = 1 x + z = -8 2x + 2z = -16 (#5) #4 - #5 : 3z = -3 z = -1 sub into y = -2z-7 ---> 2-7 = -5 sub into 2nd: -5 - x - 1 = 1 -x = 7 x = -7 so , x = -7, y...
*Thursday, November 3, 2011 at 12:04am by Reiny*

**animal science**

Which of the following is true of the function of glucagon? A. Glucagon regulates insulin secretion. B. Glucagon increases glycogen breakdown into glucose. C. Glucagon inhibits glycogen breakdown into gluclose. D. Glucagon regulates somatostatin secretion.
*Wednesday, August 15, 2012 at 11:37am by jennifer*

**math**

I did this below for you 1.05 x = 30 x = 30/1.05 =28.57 she better spend 28 because 29 will put her over 30
*Sunday, August 17, 2008 at 6:57pm by Damon*

**math**

Let x equal the cost of the jeans. x + x - 6 = 64 2x - 6 + 6 = 64 + 6 2x = 70 x = 35 To check: 35 + 29 = 64
*Monday, May 18, 2009 at 9:46pm by Ms. Sue*

**physics**

from the mass, calculate the number of moles of Cu. From the moles, count the number of atoms (moles*avag number) number of electrons= that * 29
*Monday, September 19, 2011 at 4:29pm by bobpursley*

**planar geometry**

lengths are 1. √(4+25) = √29 2. √(49 + 9) = √58 3. √(25 + 4) = √34 Mmmhhh ... So what do you think?
*Thursday, July 26, 2012 at 9:47am by Reiny*

**math**

a pizza place sold worth 2000 of pizza on saturday. there were 29 small pizzas sold and medium pizzas sold
*Monday, November 5, 2012 at 12:47pm by joe*

**math**

1. 29.50 * 1.07725 = ? 2. 45 * 0.15 = 6.75 0.07725 * (45 - 6.75) = ? 3. 0.07725 * (53.35 * 1.23) = ?
*Friday, January 18, 2013 at 2:09pm by Ms. Sue*

**Math Help and check**

.05 is P(Z<-1.645) That is, 18 is 1.645 std below the mean. So, the mean is 18+2*1.645 = 21.29
*Saturday, June 15, 2013 at 4:50pm by Steve*

**2nd grade math**

80m/11 lights = 7.2728 m between lights, 7.2728 * 4 for a distance of 4 lights in between the two is = 29.1 m
*Sunday, February 2, 2014 at 8:32pm by Liam*

**math**

http://www.google.com/search?q=mathematics+of+the+Mesopotamians&rlz=1C1AVSX_enUS414US423&oq=mathematics+of+the+Mesopotamians&aqs=chrome..69i57j0.680j0j8&sourceid=chrome&espv=210&es_sm=122&ie=UTF-8#es_sm=122&espv=210&q=20+divided+by+6400
*Wednesday, October 23, 2013 at 9:02pm by Ms. Sue*

**physics**

An obnoxious brat assigns his 0.0221-kilogram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. During the launch process the spring transfers 0.707 J of energy into the \'mouse Earth gravitational fields...
*Tuesday, December 3, 2013 at 9:02pm by James*

**physics**

An obnoxious brat assigns his 0.0221-kilogram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. During the launch process the spring transfers 0.707 J of energy into the \'mouse Earth gravitational fields...
*Tuesday, December 3, 2013 at 11:32pm by James*

**Science**

I need information on plants. "Explain the roles different parts of a plant have in converting light energy into chemical energy." I need to teach this to a special education child in as simple terms as is possible. Can you tell me some sites I can look at to find information ...
*Friday, October 10, 2008 at 1:27pm by Cheryl*

**Can someone check these answer for me?**

Ok john one more. Multiple Choice 1. You are studying an evergreen tree that produces cones. The tree is a(n) (1 point) angiosperm. gymnosperm. gametophyte. monocot. 2. Which of the following is an angiosperm? (1 point) yellow and red flower fern branches pine tree with pine ...
*Thursday, October 17, 2013 at 4:57pm by josh*

**English**

Need help with Analogies and suggest me other ways to write them please. Thank you for the help. 1)Smart people keep quiet about what they know, but stupid people advertise their ignorance.Changed into:Good drivers are hindered to show their driving skills, while reckless ...
*Monday, October 4, 2010 at 4:24pm by Angelina*

**chemistry**

NH3 + H2O ==> NH4^+ + OH^ Kb = (NH4^+)(OH^-)/(NH3) Convert pH to pOH, then to (OH^-), substitute into Kb. Also substitute into Kb what you want the (NH4^+) to be and solve for (NH3).
*Wednesday, April 13, 2011 at 7:42am by DrBob222*

**ALGEBRA 2**

I do not get 100 miles. Here is a better way to set up the equation: let d = the distance between the two houses. The total time is 4 hours. The time spent traveling can be found by manipulating V = d/t t = d/V So the time is the displacement divided by the velocity. 45/d + 55...
*Sunday, August 16, 2009 at 7:57pm by Marth*

**social studies**

The Articles of confederation were nto adopter for fives because: (A) the antifederalists waged a stiff battle against them (B) disputes continued over western lands (C) the large states and the small states could not agree on representation (D) the question of slavery divided...
*Thursday, March 25, 2010 at 12:35pm by Mandy*

**Trig**

tan16 = 0.29. cot32.7 = 1/tan32.7, tan32.7 = 0.6420, cot32.7 = 1/0.6420 = 1.56.
*Tuesday, September 6, 2011 at 9:04pm by Henry*

**Alegaba 2**

S=2L-3 29=S+2L=2l-3+2l= 4L-3 4L=32 L=8 sides: 8,8, 13
*Tuesday, September 13, 2011 at 11:38am by bobpursley*

**Chemistry**

Hi, I would like to know if I did this problem correctly. Your help would be greatly appreciated! "Chlorine, Cl2, is produced commercially by the electrolysis of aqueous sodium chloride. The anode reaction is 2Cl-(aq)---> Cl2(g) + 2e- How long will it take to produce 2.45kg...
*Monday, April 30, 2007 at 9:13pm by Rachel*

**math115**

7+(-9)+(-5)+6=-1 2. 1/3+(-5/6)+(-1/2)=-6/6 3. evaluate each expression |-27+14|=13 4. true or false |-8|+|3|=|-8+3|=false 5. Jean deposited a check for $625, wrote two for $68.74 and $29.95 and used her debit card to pay for a purchase of $57.65. How has her account balance ...
*Wednesday, October 14, 2009 at 8:02pm by p*

**physics**

A unit of area often used in measuring land areas is the hectare, defined as 104 m2. An open-pit coal mine consumes 72 hectares of land, down to a depth of 29 m, each year. What volume of earth, in cubic kilometers, is removed in this time?
*Wednesday, August 25, 2010 at 6:17pm by liz*

**physics**

"Calculate the internal energy for the air in human lungs after a regular inhalation. You find this volume discussed in the context of the spirometer (textbook p. 203). Hint: treat air as an ideal gas with the molecular mass M = 29.00 g/mol " Not sure the process to solve this?
*Thursday, November 18, 2010 at 12:27am by serena*

**Science-Experiment-Questions**

I have this exact same homework assignment! Science Probe! All of my answers for the analysis so far: a) to draw the fuel up into the flame. b) carbon dioxide and water vapour. d) chemical: hydrocarbon breaking down into co2 and h2o. e)heat and light. f) carbon diowide and ...
*Wednesday, April 7, 2010 at 10:08am by Tina*

**Math**

Perform the indicated operations and reduce all results to lowest terms. Assume the variables are restricted to values that prevent division by 0. (x^2-y^2)/(x^2-2xy+y^2) divided by (3x+3y)/(7x-21) Could someone please show me how to do this so I can do the rest of my homework...
*Sunday, March 21, 2010 at 5:52pm by Chad*

**Physics**

For problem #3, calculate how long it takes to fall 20 m. 60 m divided by that time will be the initial horizontal speed. Telling us what you got is not the same as showing your work. Your last answer is obviously wrong. A negative distance is not a jump, and no one can jump 4...
*Sunday, December 5, 2010 at 5:01pm by drwls*

**algebra help 2**

(2u^3-13u^2-8u+7) divided by (u-7) i made a mistake i only need to know the quotient Do it like long division. 2 u^2 +u -1 __________________ (u-7)| 2 u^3 - 13 u^2 - 8u + 7 2 u^3 - 14 u^2 ___________ u^2 -8u u^2 -7u _________ -u + 7 The answer is 2u^2 + u -1
*Saturday, August 20, 2005 at 6:54pm by doc.mims*

**Math(Please check)**

The y-intercept is correct, but -5400 would not be the slope of the line. Remember that slope represents the rate of change, specifically the change in y divided by the change in x. In this case, y is the value of the automobile and x is the year. If that doesn't help, I can ...
*Sunday, January 30, 2011 at 6:39pm by Christina*

**algebra**

Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Explain why or why not? Write an inequality for your classmates to solve. In your inequality, use both the multiplication and addition ...
*Tuesday, January 3, 2012 at 1:06pm by wade*

**statistics**

For each of 10 popular prescription drugs, file XR15042 lists the retail price (in U.S. dollars) for the drug in several different countries, including the United States, Canada, Great Britain, and Australia. Determine and interpret the coefficients of correlation and ...
*Thursday, February 25, 2010 at 10:46am by Babi*

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