Tuesday

January 27, 2015

January 27, 2015

Total # Posts: 3,283

**physics**

ooh.. ok. thanks :)
*September 23, 2010*

**physics**

A 15 g lead bullet is tested by firing it into a fixed block of wood with a mass of 1.05 kg. The block and the embedded bullet together absorb all the heat generated. After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. ...
*September 23, 2010*

**6th grade**

Area could be 2 x 24, 3 x 16, 4 x 12, 6 x 8 (and vice versa). Perimeter equals 2L+2W. If the area was 2 x 24, the perimter would be 2(2)+2(24)=4+48=52. Do this with the 3 x 16, 4 x 12, and 6 x 8, and see which has the smallest perimeter.
*September 23, 2010*

**algebra**

4r-28+3>5r+10-23 4r-25>5r-13 Add 25 to both sides. 4r>5r+12 Subtract 5r from both sides. -r>12 Divide by negative one, so you have to switch the sign. r<-12
*September 23, 2010*

**math**

d+c=14 4d+2c=36 Multiply the top equation by -2. -2d-2c=-28 4d+2c=36 2d=8 d=4 c=10
*September 23, 2010*

**Writhing in Math**

What is the least possible number you can write with a 1 in the thousands place
*September 23, 2010*

**math**

14-8x<16 Subtract 14 from both sides. -8x<2 Divide both sides by -8. x>-1/4 The sign changed because we divided by a negative.
*September 23, 2010*

**algebra**

Yes.
*September 23, 2010*

**geometry**

ef+fg=eg, so 2x-19+3x-16=25, go from there
*September 22, 2010*

**writing**

I'm assuming it means to write a tale that you learned from. Write about when you learned an important lesson.
*September 21, 2010*

**math**

I'll give you a start..3/4-2y/4=1/4, 3-2y=1...
*September 21, 2010*

**chemistry**

Commercially available concentrated sulfuric acid is 18.0 M H2SO4. Calculate the volume (in mL) of concentrated sulfuric acid required to prepare 1.60 L of 0.320 M H2SO4 solution.
*September 21, 2010*

**math**

62 tens and 4 ones
*September 21, 2010*

**math**

Disregard this post; check your other one.
*September 21, 2010*

**math**

Are the 2's exponents? What sign goes in the middle? If this is (-6)^2 (-4)^2, it would be 36(16)=
*September 21, 2010*

**math**

18-8= Disregard your other post.
*September 21, 2010*

**Memorial High School**

Post a problem that you are having trouble with..
*September 20, 2010*

**Math**

I think it would just be c/5, since there are 5 people. If c=20, each person would get 4, so it makes sense.
*September 20, 2010*

**Math**

Yes.
*September 20, 2010*

**Math**

9, 18, 27, 36, 45, 54, 63, 72, 81.. The tens column keeps getting bigger by one and the ones column keeps getting smaller by 1. Do you mean multiples of 11 for the second question?
*September 20, 2010*

**algebra**

I only checked 7 and 20..both are wrong.
*September 20, 2010*

**Physics**

what is the speed?
*September 19, 2010*

**physics**

If you heat a thin, circular ring in the oven, does the ring’s hole get larger or smaller? When the lid of a glass jar is tight, holding the lid under hot water for a short time will often make it easier to open. Why?
*September 19, 2010*

**A&P**

I think it might be anatomy and physiology.
*September 19, 2010*

**algebra 1**

42/60 divide both by 6 and you get 7/10..try the rest on your own and someone can check the answers for you
*September 19, 2010*

**4th grade**

Shanya, Do 3 x 6 and then count the amount of zeroes in that problem and put that many 0's after.
*September 19, 2010*

**arithmetic**

5y-5x+z..This is as far as you can go unless you have more information
*September 19, 2010*

**COM156**

Run out of things to say/writers block
*September 19, 2010*

**math**

Does 6(3)-6(7)=-2?
*September 18, 2010*

**alegebra**

It's false because when you have two whole numbers such as 5 and 2, under division it becomes 5/2 (or 2 1/2), which is no longer a whole number.
*September 17, 2010*

**6th grade Math**

4y+7=51 4y=44 y=11 Are you sure you wrote that correctly? There is no need for that parenthesis.
*September 16, 2010*

**8th grade**

Common are obviously the ones that each number has in common. List both, like I did above, and see which numbers are in both groups. Post specific questions with your answer if you'd like them checked.
*September 16, 2010*

**8th grade**

Factors-a number can be evenly divided without a remainder Examples: Factors of 16 are 2, 4, 8. Factors of 24 are 2, 3, 4, 6, 8, 12. Multiples-result of multiplying by a whole number. Examples: Multiples of 2 are 2, 4, 6, 8, 10, etc. See how you are just counting by 2's? ...
*September 16, 2010*

**English**

What is the book you are writing about? What's the main theme of it?
*September 16, 2010*

**MATH**

26=30-36a -4=-36a 1/9=a
*September 16, 2010*

**MISSING INFORMATION**

What is the "correct" problem? There is information missing. Please clarify.
*September 16, 2010*

**math**

What you have above is 5+7=7+5, which is a true statement. This is the commutative property because switching the numbers around does not effect your answer in this case.
*September 16, 2010*

**6th grade math**

3/4 x 5/7 x 1/2 All you had to do was coming up with three numbers that multiplied to 15 (those were your numerators, or top numbers) and come up with three numbers that multiplied to 56 and have them as your denominators, or bottom numbers.
*September 16, 2010*

**Math Problems**

She did answer the questions. I think that's what the = sign is that she put by each problem.
*September 16, 2010*

**math**

Please re-read what you wrote and fix it. It can't be "less four". That doesn't make sense.
*September 15, 2010*

**algebra**

g+5=2h-6
*September 15, 2010*

**math**

Associative property, because the parenthesis are just moved around.
*September 15, 2010*

**math**

Commutative means you just switch the numbers around and get the same answer.
*September 15, 2010*

**A gift of money**

That's a strange question..
*September 15, 2010*

**geometry**

Supplementary means adds up to 180. Complementary adds up to 90. -10x+53-5x-8=180
*September 15, 2010*

**5th grade**

The mode is the number that occurs the MOST. Which number here do you see more than any other number?
*September 14, 2010*

**11th grade math**

4(x^2-4x+3) You can factor this further by seeing which 2 numbers subtract to 4 (your middle term) and add to 3 (your last term). Post if you want it checked/need help.
*September 14, 2010*

**math**

I'm not positive, but I think you do it like this. Check my work based on your notes/textbook. 6C2=6!/(6-2!)2!=6!/4!2!=6X5X4X3X2/4X3X2X2=(cross out 4x3x2 on the top and bottom)=30/2=15
*September 14, 2010*

**verb and noun**

The noun is the person, place, or thing. The verb is the action.
*September 14, 2010*

**computer**

We don't do the work for you. Is there anything specific that we can HELP you with?
*September 14, 2010*

**math **

Correct.
*September 14, 2010*

**ALGEBRA 2 URGENT! PLEASE HELP!**

Since 8^2=64, set 2^x-1=2, 2^1=2 so x-1=1, x=?
*September 14, 2010*

**Algebra**

2x=x+45 x=?
*September 14, 2010*

**geometry**

3x-5=x+17
*September 14, 2010*

**HS Math**

Please help answer.. What is the principle of powers? When solving a radical equation how do we use the principle of powers to eliminate radicals
*September 14, 2010*

**math**

9 3/4-4 1/2= 9 3/4-4 2/4=5 1/4
*September 14, 2010*

**5th grade**

3x9=27 (The first number, 3, is the amount going down and the second number, 9, is the number going across.) xxxxxxxxx xxxxxxxxx xxxxxxxxx
*September 14, 2010*

**Math**

A factor of 28 is __. A multiple of 7 is __. 28 is divisible by __. ....
*September 14, 2010*

**spanish**

Tengo dos novios. (You said you had a boyfriend, and then she replies that she has two boyfriends.)
*September 14, 2010*

**preAlgebra**

Look at it this way: if you have money, it's a positive number and if you owe money, it's a negative number. You owe $4, you owe $9..do you owe money or have money? That tells you your sign. How much?
*September 14, 2010*

**HS Math**

Please help answer this.. What is the principle of powers? When solving a radical equation how do we use the principle of powers to eliminate radicals
*September 14, 2010*

**math**

.83 is read as 83 hundredths because it goes up to the hundredths place. If you don't know this, study place value. So you re-write it as 83/100 and then simplify to 5/6.
*September 13, 2010*

**john marshall**

Erica, did you see my post above? x+7+17=2x,x+24=2x, x=?
*September 13, 2010*

**john marshall**

Do you see how ab+bc=ac? Then x+7+17=2x. Can you go from here?
*September 13, 2010*

**math**

It's quicker and it helps you get to a close answer.
*September 13, 2010*

**algebra 2**

1/2(9+2) 1/2(11)=?
*September 13, 2010*

**10th grade math**

You can use another variable there, such as x if you want. That's as far as you can get the equation with the information given.
*September 13, 2010*

**10th grade math**

5-p=?
*September 13, 2010*

**9th grade math**

Product means multiply, so: 6y
*September 13, 2010*

**math**

3 hrs. I drew a picture to help me with this one.
*September 13, 2010*

**Probability**

I would guess 50% since it's always a 50% chance that you get an odd/even..
*September 12, 2010*

**Pre Calc**

a)4!/1!(4-1)!=4 x 3 x 2/3 x 2, cancel out the 3's and 2's=4 You do b and c. Post your answers if you'd like them checked.
*September 12, 2010*

**algebra 1**

15.6-17.9=?
*September 12, 2010*

**math**

And to find the price of the socks, including tax, you can do 2.99 x 1.055
*September 12, 2010*

**7th grade Math**

A rectangle has 2 pairs of congruent sides so 2(x+6)+2(4x-5)=2x+12+8x-10=10x+2
*September 12, 2010*

**math**

I think I did this for you the other day? Get out a calculator or do it with paper and pencil: 680 x .22
*September 12, 2010*

**science**

A simple strategy would be to replace each option with groveling in the sentence above and see what makes sense. Quit ignoring, Lou! Of course I'll help you. That's the first one. Now try the rest.
*September 12, 2010*

**keyboarding and word processing**

Just keep typing random words and see if they continue to the next line or if you have to hit enter.
*September 12, 2010*

**math**

Reciprocal of 19/3 is 3/19. You just flip the fraction. To find a reciprocal of a whole number, put 1 underneath it and flip. Ex: 7=7/1, reciprocal=1/7.
*September 12, 2010*

**Pre CALCULUS**

What happens when you subtract x from both sides? It doesn't work. Plug in any number to see why. If x=1, then x+5=6. X always has to equal x and nothing else, so there are no solutions to this.
*September 11, 2010*

**algebra**

Since 3^5=243, set 2x+1=5 and solve.
*September 11, 2010*

**CORRECTION**

a=-4
*September 11, 2010*

**Algebra**

1. Sorry, I was never good with radicals. 2. 7x-3=4x+9 You want to get the variables (letters) on one side and numbers on the other. Add 3 to both sides: 7x=4x+12 Subtract 4x from both sides: 3x=12 Divide both sides by 3: x=? 3. 12-4x=x^2 x^2+4x-12 Now factor it. You are ...
*September 11, 2010*

**math**

680 x .22 = ?
*September 11, 2010*

**geometry**

ab+bc=ac 3x+5x=8 8x=8 x=? bc=5x Put what you got for x in and solve.
*September 10, 2010*

**COMPUERS**

LOL..are you serious Sammi?
*September 10, 2010*

**Inequalities**

You're very close but you left out one thing. You have to divide to find averages, so: (99+91+85+x)/4>=90 99+91+85+x=360 Take it from here.
*September 9, 2010*

**11th grade**

I think it says what do you do after gym class (without the question mark)...Entonces, voy a la mi clase de matematicas. (Then, I go to math class.)
*September 9, 2010*

**9th **

Rewrite the problem. It makes no sense. What are the symbols between the 9 and 3 and the 3 and 4?
*September 9, 2010*

**English**

Yes, you are right.
*September 9, 2010*

**10th grade**

I think you would then multiply that by 2, since it says to expect double production..?
*September 9, 2010*

**math**

Multiply either or both equation(s) to eliminate either the x's or y's. In this cas, multiply the top by 3 and the bottom by 2 to eliminate the x's. -6x+15y=42 6x+4y=34 The x's cancel and you add what's left. 19y=76 y=? Then put y back into either ORIGINAL ...
*September 9, 2010*

**Spanish**

You said no, he is tall or short. El no es alto o bajo. The no goes before the verb.
*September 9, 2010*

**math**

billions, hundred millions, ten millions, millions, hundred thousands, ten thousands, thousands, hundreds, tens, ones Those are the places of every digit of that number. The digit/numeral in the ten thousands place is the 6. See what I wrote above? The ten thousands place is ...
*September 9, 2010*

**algebra**

Well, if there are 4 scores and seven years in 87 years... 4s+7=87, solve for s
*September 9, 2010*

**6th grade**

Is there anything specific that you need help with?
*September 9, 2010*

**Math**

a=5/9-5/12 a=20/36-15/36 a=?
*September 9, 2010*

**Math**

To get from 3 to 12 on the bottom, what number do you multiply by? Multiply that by the 2 (on the top).
*September 9, 2010*

**Geometry**

The subject is geometry.
*September 9, 2010*

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