Wednesday

April 16, 2014

April 16, 2014

Number of results: 97,960

**IMPOSSIBLE ALGEBRA >:(**

5y+4=4y+5
*Wednesday, August 27, 2008 at 6:10pm by stephanie garcia *

**IMPOSSIBLE ALGEBRA >:(**

umm....does any1 kno if this is rite?
*Wednesday, August 27, 2008 at 6:10pm by samma_chan*

**Geometry**

Given circle A with circumference 20 pi and the length of arc KD equal to 10/3 pi. Find the area of the shaded region. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Is there any ...
*Sunday, March 6, 2011 at 4:55pm by Gemma*

**Logic**

Can someone please help me solve these problems? I have to use the 17 rules of inference to prove the arguments valid: 1) 1. T = R 2. (~R > ~T) > (P . ~S) / ~S v T 2) 1. C > F 2. A > B 3. ~F . A 4. ~C > (B > D) / B . D 3) 1. (S v Q) / ~P > ~S 4) 1. D > ...
*Tuesday, August 16, 2011 at 1:52pm by Brayden*

**i dunno**

Thank you for using the Jiskha Homework Help Forum. Online, this is what it says about the "Impossible Quiz:" The Impossible Quiz: The quiz that is almost impossible. Looking at the word "almost" suggests that it IS possible!
*Saturday, August 25, 2007 at 5:00pm by SraJMcGin*

**IMPOSSIBLE ALGEBRA >:( partial answer**

3y+1=4y-6 is Y= 1 1 + 6 = y 7 = y 10-y=2y+3 10 - 3 = 3y
*Wednesday, August 27, 2008 at 6:10pm by Ms. Sue*

**Functions**

i thinkthe only ans is x> 0,its impossible to log a negative no.u may try to use a calculator to prove it. then x/x should be done first.so x < -8 or x> -8 is also possible.
*Tuesday, January 3, 2012 at 11:07pm by Kon*

**IMPOSSIBLE ALGEBRA >:(**

I have to do 10 algebra problems by tomorrow........and i dont know how..... :( 1. 7x-1 = 2x+5 2. 3y+1 = 4y-6 3. 10-y = 2y+3 4. 6x+2 = 1-x 5. 3a-10 = 4+a 6. 5y+4 = 4y+5 7. b+3 = 2b-7 8. 2x-1 = x-3 9. 2w+3 = 4w-5 10. 6n+4 = n-11 please help in any way you can...thnx
*Wednesday, August 27, 2008 at 6:10pm by samma_chan*

**English**

It was impossible for him to come. What part of speech is "impossible" in the previous sentence?
*Tuesday, January 18, 2011 at 3:27pm by Rachel*

**IMPOSSIBLE ALGEBRA >:(**

ok. 3y+1=4y-6 is Y= 1 umm.... i think that i need more help with 10-y=2y+3..... 6x+2=1-x is X= 0.42 3a-10=4+a is A= 7 5y+4=4y+5 is Y= 1 b+3=2b-7 is B= 3.3 2x-1=x-3 is X= 2 2w+3=4w-5 is W= 1.3 6n+4=n-11 is N= 2.14
*Wednesday, August 27, 2008 at 6:10pm by samma_chan*

**Abstract Algebra**

If 2^n>n^2 and n>5, then 2^n+1>(n+1)^2 Proof: Assuming that 2^n>n^2 then I can say that 2*2^2>2*n^2 = 2^n+1>2n^2 If I can show that 2n^2>(n+1)^2 then I will be done by transitivity. So 2n^2>(n+1)^2? then 2n^2>n^2+2n+1? then n^2>2n+1, hence n^2-2n-...
*Friday, September 21, 2007 at 2:00pm by Dina*

**Economics**

I am on the chapter for International Trade in the book. I neew to calculate the producer surplus after a trade and I am not sure if I am doing it right. Graph: Price of Pencil Sharpeners $16__________________________World Price >>>>>>>|>>>>>...
*Saturday, May 10, 2008 at 10:16am by G*

**FRENCH**

The 22 French regions Alsace >> Aquitaine >> Auvergne >> Bourgogne >> Bretagne >> Centre Val de Loire >> Champagne - Ardenne >> Corse >> Franche-Comté >> Ile de France >> Languedoc - Roussillon >> Limousin >&...
*Monday, May 9, 2011 at 8:27pm by Frenchy*

**Algebra 2**

add x to both sides. x^4<=x take the log of both sides 4lnx<=ln x Now consider when x is between zero and 1.0 divide by ln x (since it is negative, the signs switch direction) 4>=1 so means all values of x between zero and 1 are valid Now when x>1 4<=1, which is...
*Wednesday, July 28, 2010 at 4:06pm by bobpursley*

**IMPOSSIBLE ALGEBRA >:(**

7x-1 = 2x+5 First get the unknowns on one side of the equation. 7x - 2x = 6 5x = 6 x = 1.2 You can check that by substituting. 7(1.2) - 1 = 2(1.2) + 5 8.4 - 1 = 2.4 + 5 7.4 = 7.4 Now -- please try a couple on your own. We'll be glad to check them for you.
*Wednesday, August 27, 2008 at 6:10pm by Ms. Sue*

**Math - Pre algebra**

Help!!! 1. which of the following is greater than 4.3 x 10>9? a 2.1 x 10>9 b 3.2 x 10>9 c 5.3x 10>9 d 7.4 x 10>8 2. which of the following is less than 6.5 x 10>-5? a 1.4 x 10>-3 b 2.5 x 10-4 c 7.8 x 10-5 d 4.6 x 10>-6 according to the 2010 census the ...
*Thursday, November 15, 2012 at 7:43pm by E.M*

**Intermediate algebra, concepts and graphs**

|x-2|>1 +(x-2) > 1 or -(x-2) > 1 x-2 > 1 or -x + 2 >1 x > 3 or x < -1 the key word here is OR and you forgot to reverse the inequality sign for one of the cases
*Friday, June 14, 2013 at 12:13pm by Reiny*

**Sabian **

If air resistance offered to the motion of a projectile by the surrounding air is taken in account i,is time of flight increase or decrease?why? ii,hmax >> >> >> iii,the range >> >> >> iv,the striking angle >> >> >>
*Tuesday, January 8, 2013 at 1:20am by Tsedeke*

**Abstract Algebra**

Proof: Assuming that 2^n>n^2 then I can say that 2*2^n>2*n^2 = 2^n+1>2n^2 yes, correct If I can show that 2n^2>(n+1)^2 then I will be done by transitivity. So 2n^2>(n+1)^2? then 2n^2>n^2+2n+1? then n^2>2n+1, now, n>5, so n= 5+m, where m is any positive ...
*Friday, September 21, 2007 at 2:00pm by bobpursley*

**Pre-Cal.**

Describe the end behavior of f(x)=2x^4-5x+1: A. x-->‡, f(x)-->‡; x-->-‡, f(x)-->-‡ B. x-->‡, f(x)-->‡; x-->-‡, f(x)-->‡ C. x-->‡, f(x)-->-‡; x-->-‡, f(x)-->‡ D. x-->‡, f(x)-->-‡; x-->-‡, f(x)-->-‡
*Tuesday, March 17, 2009 at 2:35pm by Mia*

**algebra - absolute value**

+(t-4) > t-4 0>0 , no solution or -(t-4) > t-4 -t+4 >t-4 -2t > -8 t < 4 check with some numbers t = 1 , which is less than 4 |1-4| > 1-4 3 > -3 , YUP t = -50 , which is less than 4 |-50-4| > -50 - 4 54 > -54 , YUP let t = 6 , which is greater than...
*Thursday, November 29, 2012 at 7:51pm by Reiny*

**MATH!!!**

i was saying the person cant touch the mountain because this is just impossible regardless of the math one does...but i dont why it is impossible
*Monday, March 2, 2009 at 2:26pm by Mz. Suzie*

**Algebra**

yr 1> $265,000 yr 2> $280,900 yr 3> $297,754 yr 4> $315,619 yr 5> $334,556 yr 6> $354,630 yr 7> $375,908 yr 8> $398,462 yr 9> $422,370 yr 10> total %447,711.92 or $447,712
*Friday, June 17, 2011 at 1:40am by Levi*

**Algebra 1**

If 111 -> 13, 112 -> 24, 114 -> 46, and 115 -> 57, complete this statement: 117 -> ____. Explain.
*Saturday, March 8, 2014 at 4:48pm by Jackie*

**Algebra**

What are the domain and range of the function y=2square root 3x+4-5? A.x>=-4/3;y>=-5 B.x>=4/3;y>=5 C.x<=-4/3;y<=-5 D.x>=-4/3;y>=5 I think it is A...?
*Tuesday, March 19, 2013 at 1:54pm by Cassie*

**Math**

Actually, you need to sort on the length first, then on all the digits in order, so to expand the example a bit, (923>921>919>913 > 762 > 421>413>409) > (91>90 > 63>61 > 12>10) > (9 > 3)
*Wednesday, May 8, 2013 at 2:35pm by Steve*

**Com 155 **

A few examples: Adjectives: great >> modifies movie >> WHAT KIND OF last >> modifies weekend >> WHICH two >> modifies actors >> HOW MANY Adverbs: much >> modifies adj. better >> TO WHAT EXTENT very >> modifies adj. intense...
*Saturday, August 6, 2011 at 4:39pm by Ms. Sue*

**statistics**

I don't follow this at all: <(X - m + m - <X>)^2> = <(X-m)^2> + <(m - <X>)^2> + 2 <X-m><m-<X>> Trying to follow your logic, for the left side: <(X - m + m - <X>)^2> = <(X - <X>)^2> = <x^2> - <x>...
*Wednesday, August 29, 2007 at 12:15pm by statstudent*

**Algebra 1 Word Problem (Reiny)**

maximize p = profit = 2 L + 1 C >/= 25 L >/= 5 C>/=5 start with L = 5 10+C >/= 25 C >/= 15 if L = 6 12 + C >/= 25 C >/= 13 so L 7, C 11 L 8 ,C 9 L 9 , C 7 L 10, C 5 are your MINIMUM combinations. Of course you can always sell more
*Thursday, January 16, 2014 at 3:42pm by Damon*

**algebra 2**

I am not sure if you have the right question. The absolute value of any function is greater than zero, so the condition >-6 is superfluous. Check if the question is not: x+4 > |6|. If the question is indeed |x+4|>6 and |x+4|>-6, just work with the first condition, ...
*Saturday, September 25, 2010 at 6:17pm by MathMate*

**phys**

To totally convert a given amount of mechanical energy into heat is Choose one answer. a. impossible. b. possible. c. impossible to answer without additional information.
*Thursday, February 17, 2011 at 10:26am by Anonymous*

**Algebra II**

3[m-4]>6 [m-4]>2 so m-4 >2 OR -m+4 > 2 m > 6 OR -m > -2 m > 6 OR m < 2
*Thursday, October 25, 2007 at 9:10pm by Reiny*

**Algebra**

Just wondering if I did this correctly step by step. If not corrections are mostly appreciated! Solve the inequality and write the solution set in interval notation. Show work/explanation. (x+8)/(x-1) >= 0 8+x/x-1=1+9/x-1 9/x-1>=-1 x-1/9 < -1 x-1< -9 x<-8 x-1>...
*Saturday, July 25, 2009 at 9:45pm by Tammie*

**Help me with this math ms sue.**

She can not do magic. without knowing any dimensions of your figures it is impossible for use to compute slant heights or anything else about them. I in reading your question you do not see that it is impossible for us to answer it, you are in very serious trouble.
*Thursday, February 27, 2014 at 6:31pm by Damon*

**Chemistry**

I'm stuck...that is i believe I've come to an impossible answer: I need to calculate the equilibrium constant 4Fe(s) + 3O2(g) --> 2Fe2O3(s) First off: Delta G G Fe(s) = 0, G O2(g) = 0, G Fe2O3(s) = -741 (x2) -741 (2) - 0 = -1480 = delta G of reaction at equilibrium: 0 = (...
*Thursday, April 29, 2010 at 9:34pm by Rico*

**Chemistry**

I'm stuck...that is i believe I've come to an impossible answer: I need to calculate the equilibrium constant 4Fe(s) + 3O2(g) --> 2Fe2O3(s) First off: Delta G G Fe(s) = 0, G O2(g) = 0, G Fe2O3(s) = -741 (x2) -741 (2) - 0 = -1480 = delta G of reaction at equilibrium: 0 = (...
*Thursday, April 29, 2010 at 10:47pm by Rico*

**calculus**

First step, find any vertical asymptotes. 1 + e^(1/x) = 0 e^(1/x) = -1 1/x = ln(-1) Obviously since this is impossible, there are no vertical asymptotes. Since we have a fraction in the function (1/x), and the x is in the denominator, we can conclude that f(x) does not exist ...
*Saturday, October 16, 2010 at 3:50pm by Mike*

**algebra**

Your total pay for the 2 jobs must be at least 245 dollars. Pay1 + Pay2 >= 245 The pay for your first job, cleaning, is 8 dollars times the number of hours, h, worked at that job. Pay1 = 8h So: 8h + Pay2 >= 245 The pay for your second job, sales, is 6 dollars times the ...
*Thursday, February 4, 2010 at 10:52pm by Anonymous*

**algebra**

How do I solve inequalities? For example a+15>27. a.) a>42 b.) a>13 c.) a>12 d.) not given.
*Wednesday, December 5, 2007 at 5:58pm by Tabby*

**algebra II**

The denominator is always + so the real question is when is the numerator >0 3x + 6 >0 3 x > -6 x > -2
*Sunday, July 10, 2011 at 12:52pm by Damon*

**Algebra**

for √ to be defined, we need 3x+4 >= 0 3x >= -4 x >= -4/3 At x = -4/3, y = -5, so for any x >= -4/3, y >= -5 Looks like (A) all right
*Tuesday, March 19, 2013 at 3:53pm by Steve*

**FACTORIAL PRODUCT(ALGEBRA)**

Count how many 2's there are in each of the factorials, 1! = none 2! = 1 3! = 1 4! = 2*4 => 3 5! = 2*4 => 3 6! = 2*4*2 => 4 7! ... 10!=2*4*8*2 => 8 Add all the numbers on the right to get N.
*Wednesday, April 10, 2013 at 4:54am by MathMate*

**Economics**

I have the following question in my assignment: The cost of producing stero systems has fallen over the past several decades. A:Use the supply-and-demand diagram to show the effects of fallaing production costs on the price and quantity of steros sold. B:In you diagram, show ...
*Tuesday, March 11, 2008 at 11:04am by G*

**Algebra**

Well, Area >0 A>0 so x^2+7x+2 >0 (x+6.7)(x+.3)>0 so a possible length is x+6.7 and a possible width is x+.3, and x can be any number >.3 ( as long as width is >0) check my thinking.
*Tuesday, February 16, 2010 at 10:41am by bobpursley*

**algebra**

Without the use of parenthesis, it is impossible to decipher your typing.
*Thursday, August 27, 2009 at 8:46pm by bobpursley*

**Physics**

recheck your algebra, dimensional analysis shows it is impossible.
*Thursday, April 28, 2011 at 7:05pm by bobpursley*

**algebra**

#1 , #2 and #4 are correct. :) for #3, you have two cases, first: 7-x > 2 (positive case). thus, -x > 2-7 -x > -5 x < 5 second: -(7-x) > 2 (negative case). thus, -7+x > 2 x > 2+7 x > 9 thus, it should be x < 5and x > 9 or (-infinity, 5) U (9, +...
*Wednesday, November 10, 2010 at 8:32pm by jai*

**algebra**

4x+12>4 and 3x-25>-13 4x > -8 and 3x > 12 x > -2 and x > 4 so it looks like x > 4 write it in the notation asked for
*Wednesday, January 20, 2010 at 11:56pm by Reiny*

**algebra 2**

3|m-4|>6 |m-4|>2 m-4 > 2 or -m+4 > 2 m > 6 or -m > -2 m > 6 or m < 2 m < 2 OR m > 6 , looks like B)
*Monday, November 29, 2010 at 10:00pm by Reiny*

**English**

I >> pronoun went >> verb to >> preposition New York >> noun yesterday >> adverb
*Wednesday, August 7, 2013 at 2:08pm by Ms. Sue*

**math**

3 >> 9 4 >> 16 __>> 25 6 >> ___ 10 >> 100 The outputs sure look like squares of the inputs.
*Wednesday, May 22, 2013 at 10:18pm by Ms. Sue*

**algebra**

tomatoes: 1/2 >> 1 - 1/2 = 1/2 radishes: (1/4) * (1/2) = 1/8 >> 1/2 - 1/8 = 3/8 cucumbers: 1/2 * 3/8 = 3/16 >> 3/8 - 3/16 = 3/16 peppers: 3/16 Check my math.
*Friday, January 28, 2011 at 4:33pm by Ms. Sue*

**Algebra**

Is this the right way to do this problem? 3(x+6)-4>2(x+4 -3(6+5)<8(7-3) my answer: 3(x+6)-4>2(x+4)then 3x+18-4>2x+8then3x+14>2x+8then3x-2x>8-14thenx>6 is it correct? Thanks
*Wednesday, September 30, 2009 at 12:32pm by Tracy*

**Linear Algebra**

Vector in Space-Directions and Magnitudes Let a, b, c, d, e, & f be vectors such that <a,b>=6, <a,c>=6, <a,c>=-4, <b,c>=7, b+c=d, -8a+8b=e, -4b+2c+f compute the following inner product: <b,a>=__ <a,d>=__ <e,c>=__ <a,f>=__
*Saturday, February 22, 2014 at 9:25pm by lyndirosies*

**algebra**

Ahh makes much more sense when Reiny did it. I remember learning this in algebra. I have a tendency to give everything its own variable, which makes the problem impossible to solve i guess.
*Thursday, January 17, 2013 at 9:56am by Dylan*

**college algebra--need help please!!**

1.3^5 = 3.71293----> 3.71 1.3^4 = 2.8561 ---->-2.86 1.3^3 = 2.197 ----->19.77 1.3^2 = 1.69------->-8.45 -16*1.3 ----------->-20.8 +5 ----------------> +5 add f(1.3) = -3.63 now do f(1.6) 1.6^5 = 10.48576 ----> 10.5 1.6^4 = 6.5536 ------>-6.55 1.6^3 = 4....
*Friday, November 23, 2012 at 2:55pm by Damon*

**math**

2y+6,3y and y-4 are all integers and y-4 is the median of these intergers => case 1: 2y+6≥y-4 AND 3y≤y-4 2y+6≥y-4 => y≥-10 AND 3y≤y-4 => y≤-2 => -10≤y≤-2 or case 2: 2y+6≤y-4 AND 3y≥y-4 solving similarly, -2≤y≤-10 which is ...
*Monday, September 12, 2011 at 7:40pm by MathMate*

**algebra**

|x + 5| > 9 remove absolute value sign x + 5 > 9 x > 4 -x - 5 > 9 -x > 14 when you divide by a negative, reverse the sense of the inequality x < -14 x > 4 x < -14
*Wednesday, January 19, 2011 at 8:17pm by helper*

**Philosophy (Logic)**

I need help constructing a formal proof of validity for the following: 1. B<->(L•D), ~D, so ~B 2. R v (S•~T), (R v S) -> (U v ~T), so T->U 3. A -> ([E•~G) ->M], ~ (~E v G) -> (M -> F), so A -> [~ (~G -> ~E) ->F
*Thursday, May 10, 2007 at 11:41pm by Abby*

**Algebra**

1. Do not use FOIL, because the problem is better solved as it is. 2. Visualize your numbers on the number line. 3. Only one of the two conditions on each side of (OR) is viable. (x+3 <0 and x-5>0) OR (x+3>0 and x-5<0) (x<-3 and x > 5) OR (x> and x<5) (...
*Tuesday, July 14, 2009 at 11:42pm by MathMate*

**math**

Solve this : (8x^3 ) - (168x^2) + ( 864x) = 1120 please >>>>>>>>>> I need it >>> please
*Monday, January 21, 2008 at 2:14pm by Robert*

**Math**

first find angle G sinE/e =sinG/g so sinG = (8.7/7.3)sin73 sin G is >1. This triangle is impossible. Perhaps a typo?
*Sunday, August 21, 2011 at 10:17pm by Damon*

**algebra**

<<Q: solve y - 3 > - 13 the solution is {x | x > ?} A: {x | x > - 10} >> you switched from y's to x's, why? I meant: {y | y > - 10} thank you for your help
*Saturday, October 4, 2008 at 7:28pm by Carmen*

**Please help**

Jan >> 31 - 13 = 18 Feb >> 28 Mar >> 31 Apr >> 30 May >> 31 June >> 16 Add the days.
*Thursday, June 16, 2011 at 5:54pm by Ms. Sue*

**Algebra**

3n+45(6*5)=53 I know its impossible but i have to come up with an answer
*Tuesday, September 4, 2007 at 6:59pm by Anoymous*

**Algebra I **

Can anyone summarize the quadratic formula? I am trying to understand this for algebra without any unnecessary and overused words involved like Wikipedia and sites that give me a headache. I just want a paragraph (or more than if its impossible to paraphrase) that is straight...
*Monday, March 21, 2011 at 8:58am by Micah*

**Algebra**

1. Given: (-2,2), m = 5. y = mx + b = 2, 5(-2) + b = 2, b = 12, y = 5x + 12. 3. 5x + 3 = 13, 5x = 13 - 3 = 10, X = 2. 4. You need a sign between 6x and 3x. 5. [x-3] > 8, +-(x-3) > 8, +(x-3)> 8, x-3 > 8, x > 8+3, X > 11. -(x-3) > 8, -x + 3 > 8, -x > 8...
*Saturday, August 6, 2011 at 6:42pm by Henry*

**Algebra**

I'm having trouble with inequalities. Basically my problem is about which way the sign goes. Here's an example.. X(X+1)>2 so then it becomes X^2 + X>2 Correct? Then X^2 + X - 2>0 then factor so it becomes (X+2)(X-1)>0 And so I end up with X>-2 and X>1 as my ...
*Tuesday, September 9, 2008 at 8:41pm by Samantha*

**One more algebra!**

If r>0, then for all p and q such that pq does not equal 0 and pr>qr we have a. -p > -q b. -p > q c. 1 > -q/p d. 1 < q/p e. none of these This one I do not get at all, either. Please walk me through it. Thank you!
*Monday, January 19, 2009 at 4:15pm by Dulcibella*

**Algebra**

-5x > 0 -5x/-5 > 0/-5 x < 0 since we are dividing by a negative, the inequality changes so, no the answer is not the same 9x > 81 x > 81/9 x > 9
*Monday, May 10, 2010 at 11:19pm by CL*

**algebra 1**

Here would be the correct solution ... 4-3w > 8 OR -4 + 3w > 8 -3w > 4 OR 3w > 12 w < -4/3 OR w > 4 You didn't state what Paul had said.
*Saturday, November 23, 2013 at 8:25am by Reiny*

**algebra**

-2x>1/9 x > (1/9) /-2 x > (1/9) * -1/2 x > -1/18
*Sunday, October 31, 2010 at 5:51pm by Ms. Sue*

**algebra**

-1/2m > -7 m > -7 / (-1/2) m > -7 * -2 m > 14
*Wednesday, October 10, 2012 at 10:02pm by Ms. Sue*

**4th grade**

Convert letters to numbers, A=1, B=2, C=3,... ABCDE FGHIJ KLMNO PORST UVWXY Z C -> F; D -> H; G -> N; H .? ; I -> R 3 -> 6; 4 -> 8; 7 ->14; 8-> 16 ; 9 -> 18 So it's lette P
*Tuesday, June 30, 2009 at 9:53pm by MathMate*

**IMPOSSIBLE ALGEBRA >:(**

I have a trapezoid, and the bases are lengths 18 inches and 12 inches. Dividing the trapezoid into unequal parts are triangles. In other words, the trapezoid is divided into 7 unequal triangles. 4 triangles are shaded. How do I find the area of the shaded region of the trapezoid?
*Wednesday, August 27, 2008 at 6:10pm by Harsh*

**algebra**

How do I do this question: -6|7-x|< -30 So far I have that x=2, but I know that it's more than just 2. How do I denote/find that? first of all isolate the absolute value expression by dividing by -6, remembering that we have to reverse the inequality sign if we divide or ...
*Thursday, May 17, 2007 at 8:16pm by jess*

**Algebra**

Here is the logical analysis: (X+2)(X-1)>0 says that the answer is positive, so either x+2 > 0 AND x-1 > 0 x > -2 AND x > 1 ----> x > 1 or x+2 < 0 AND x-1 < 0 x < -2 AND x < 1 ----x < -2 so x < -2 OR x > 1 I use the following quick way...
*Tuesday, September 9, 2008 at 8:41pm by Reiny*

**algebra**

how do I find the vertex of y = x^2 - 18? I got -9, -81 but that seems impossible I think I'm missing something
*Tuesday, November 16, 2010 at 12:04am by pat*

**algebra**

The way the problem is stated -- without parentheses -- it's impossible to know the intended order of operations.
*Tuesday, February 15, 2011 at 8:16pm by Ms. Sue*

**math**

NOW Go back and check the answer. Here is your problem statement: 1>2h+3>-1 and I said the solution was: -2 < h < -1 So try h = -2 then 1 > 2*-2 +3 > -1 ???? 1 > -4+3 > -1 ??? 1 > -1 >-1 yes, as expected right on the border Now try h =-1 ,that ...
*Thursday, December 27, 2007 at 3:56pm by Damon*

**Algebra**

HOPE THIS HELPS I'M SO LOST>>>> Here we are working backwards. Look at questions 7 and 8 and think about how we can do the opposite process.Question 7 ($2200 + 1.5x) 1.5*250+$2,200 =$2,575.00
*Wednesday, December 14, 2011 at 8:36pm by Chelsea*

**geometry**

Why is it impossible for a regular polygon with more than six sides to tesselate the plane? I know it has something to do with the angles, but I'm not sure what to write for this. 3 hexagons tesselate the plane and they have angles at 120, but why can't an octagon? Why is it ...
*Saturday, December 12, 2009 at 10:48pm by Lauren*

**Math**

help please anyone? i'm having a hard time solvig these problems LOGIC CONDITIONAL PROOF. HOMEWORK HELP PLEASE!? A. 1. A -> (B -> C) 2. (C ^ D) -> E 3. -F ->(D ^ -E) / :. A -> (B -> F) B. 1. (A v B) -> -(C ^ D) 2. (-C v -D) -> (E <-> F) 3. (E <...
*Thursday, January 17, 2013 at 1:56am by Moses*

**College Algebra**

factor by grouping x^2(x-5) + 4(x-5) > 0 (x-5)(x^2+ 4) > 0 x^2 + 4 is always positive, so for the whole thing to be positive x-5 > 0 x > 5 express it in the form you were taught.
*Tuesday, February 5, 2013 at 7:38pm by Reiny*

**science**

That particular equation is a synthesis reaction. A + B --> AB To balance you must get the same number of aluminum and oxygen on each side. Coefficients and subscripts are multiplied to find the total number of atoms on each side. For example, Al2 --> Al3 to balance this...
*Wednesday, October 3, 2007 at 9:18pm by Anonymous*

**Logic**

If we let a = she studies for the exam b = she goes to the market c = she cleans her room d = she practices her sport I) a -> b II) ~c -> a III) ~d -> ~b A) ~b -> ~d B) a -> d (yes - transitivity) C) ~b -> d D) c -> b B is true because the contrapositive ...
*Friday, January 3, 2014 at 8:05pm by Steve*

**Algebra**

first one no: when dividing by a negative you need to flip the inequality sign -5x > 0 = x < 0 x<0 doesn't equal x>0 the second x> 81/9 x> 9
*Monday, May 10, 2010 at 11:19pm by Do*

**chem grade 12**

<<<<<<<<<<>>>>>>>>>>>> First : Al in III A >>>> Al = 3+ Second : O must be 2- Third : count and S = 6+
*Tuesday, January 31, 2012 at 9:49pm by IChO 2012 Washington DC*

**math algebra**

4/5(2x-1)>12 multiply by 5 4(2x-1) > 60 divide by 4 2x - 1 > 15 2x > 16 x > 8
*Friday, October 30, 2009 at 2:37pm by Reiny*

**Algebra**

compound inequality write the solution set using interval notation and graph -7x+1>=15 or 5x+3>=-17 -1 -1 -3 -3 -7x/-7>=14/-7 5x/5>=-20/5 x>=-2 x>=-4 {-2,sideways8) {-4,sideways8) On my graph I have a { at -2 Does someone know how to do this?
*Friday, March 21, 2008 at 6:15pm by Tim*

**Algebra**

3 >or= 2x -1 > -11 4 >or= 2x > -10 2 >or= x > -5
*Monday, April 22, 2013 at 2:01pm by drwls*

**Math-Algebra**

You have two cases. Either m+2 >= 0 or m+2 < 0 Case 1: m+2 >= 0 (m >= -2) 4-3(m+2) > -14 -3(m+2) > -18 m+2 < 6 m < 4 So, this solution is -2 <= m < 4 Case 2: m+2 < 0 (m < -2) 4+3(m+2) > -14 3(m+2) > -18 m+2 > -6 m > -8 So, this ...
*Friday, November 1, 2013 at 6:17pm by Steve*

**algebra**

It seem like there is a number missing after the plus (+) sign. Without this value, it is impossible to solve.
*Sunday, November 1, 2009 at 9:18pm by PsyDAG*

**Algebra 2.**

Don't know what you have against symbols, but if I interpret your words correctly, we have -|x+4| < -4 |x+4| > 4 Now, since |n| = n if n>=0 |n| = -n if n<0, we have two cases: x+4 > 0 (that is, x > -4) x+4 > 4 x > 0 x+4 < 0 (that is, x < -4) -(x+4...
*Tuesday, July 9, 2013 at 6:24pm by Steve*

**Algebra**

dilate by 2: (x,y) -> (2x,2y) up 5: (x,y) -> (x,y+5) rotate: (x,y) -> (-y,x) combining them, (x,y) -> (2x,2y) -> (2x,2y+5) -> (-(2y+5),2x) so, (1,4) -> (-13,2) and so on for the other points
*Sunday, May 19, 2013 at 1:21am by Steve*

**Math**

It's impossible. You have: l x w = 30 l + w = 20 w=20 - l l x (20 - l) = 30 You solve this equation and get impossible solution.
*Thursday, October 7, 2010 at 9:48pm by Trinh*

**algebra**

3x + 4 > 9, Solve the inequality 3x + 4 > 9 3x > 5 x > 5/3 = 1.67 Therefore, for x to be a solution, x > 1.67 You should be able to finish the problem from here.
*Monday, February 14, 2011 at 6:02pm by helper*

**Re: Physics/Math**

A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? For Further Reading * Physics/Math - ...
*Friday, March 2, 2007 at 12:18am by Technoboi11*

**Algebra-Please check**

5 - sqrt of 20x + 4 >= -3 5- 20x + 4 >= -3 5-4 - 20x >= -3 1 - 20x >= -3-1 -20x >= -4 x<= -15 Possible answers are x<=3 -1/5 <= x<= 3 x >= -1/5 x >= 0 I think it is -1/5<=x<=3 because both solutions work
*Tuesday, October 12, 2010 at 12:18pm by Juliette*

**Algebra Word Problems**

Children + adult = total receipts $1.00(x) +$3.00(350-x) = $750 solve for x=>>>> number of children tickets, 350- "x" =>>>adult tickets
*Tuesday, December 15, 2009 at 12:03pm by Mark*

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