Wednesday

April 16, 2014

April 16, 2014

Number of results: 225,224

**Math**

Suppose we draw the cables on an x-y axis with the road as the x-axis. and the posts at (-213.5,0) and (213.5,0) , with their tops at (-213.5,50) and (213.5, 50) That would make (0,20) the vertex of the parabola the equation using y = a(x-p)^2 + q , where (p,q) is the vertex, ...
*Saturday, October 6, 2012 at 9:23pm by Reiny*

**math**

130% of something is 213.90 1.3x = 213.90 x = 213.9/1.3 = ....
*Saturday, July 11, 2009 at 11:57pm by Reiny*

**physics**

34 rev = 213.6 rad is OK (1/2)*0.4 t^2 + 1.2 t -213.6 = 0 is OK The positive root is t = [-1.2 + sqrt(1.44 + 170.88)]/0.4 = 29.8 s You seem to have used the quadratic equation incorrectly.
*Wednesday, November 18, 2009 at 10:09pm by drwls*

**physics PLEASE helpp **

Find the net change in entropy when 213 g of water at 0.0°C is added to 213 g of water at 96.9°C.
*Friday, January 6, 2012 at 4:57pm by melisa*

**physics**

Find the net change in entropy when 213 g of water at 0.0°C is added to 213 g of water at 96.9°C.
*Friday, January 6, 2012 at 1:57pm by melisa*

**physics**

Find the net change in entropy when 213 g of water at 0.0°C is added to 213 g of water at 96.9°C.
*Saturday, January 7, 2012 at 10:55am by melisa*

**math**

97.5 42.25 + 49.73 ________ 189.48 + 24.50 = 213.48 (650 - 213.48= 436.52) <<<< ANSWER ! Am I correct???
*Wednesday, July 3, 2013 at 5:21pm by Bria S. *

**Math**

Es time the answer below. A). 3 10/11 +2 1/101 Chose 4 or 5 or 6 or 7 B) 5 2/47 - 2 1/35. Chose 2 or 3 or 4 or 5 C) 6 17/18 * 7 3/290. Chose 42or 49 or 63or 213
*Monday, November 25, 2013 at 3:38pm by Pietro*

**math**

18 Estimate 8128 /18 by first rounding each number so that it has only nonzero digit. 20. Find the digits in the tens place, in the tenths place, and in the ten thousandths place for the following number. 465.2587 21. Round 0.681 to the nearest tenth. 22. Estimate 17.64+9.213 ...
*Wednesday, May 2, 2012 at 9:51pm by Faye *

**Math**

I need to understand how to do the problem and not the answer. P.S. bobpursley, no offense but I didn't understand what your response meant. That information I already know but I need to know how to do the problem to get 213 as the answer. Anida won the class election by ...
*Sunday, May 24, 2009 at 4:25pm by Ninja*

**Chemistry**

Note here that CH4 is given as mols/L (instead of mols for the other problems) so if (CH4) = 0.06318 mols/L and the volume is 130.0L, then mols = 0.06318 x 130L = 8.213 mols. ......CH4 + 2H2S ==> CS2 + 4H2 I.....8.213..16.43....0.....0 C.....-x.....-2x......x.....4x E....8....
*Friday, October 4, 2013 at 9:55pm by DrBob222*

**math-fractions**

The common denominator is 18 16 2/3 = 16 12/18 2 1/6 = 2 3/18 25 4/9 = 25 8/18 32 1/3 = 32 6/18 Added together they equal 75 29/18 = 76 11/18 133 = 132 18/18 Now subtract. 132 18/18 - 76 11/18 = 56 7/18 miles
*Wednesday, November 6, 2013 at 6:49pm by Ms. Sue*

**Pre-Algebra**

m/9 = m/18 + 2 Subtract m/18 from both sides. m/9 - m/18-----> 2m/18 - m/18 m/18 = 2 m/18*18 = 2*18 = 36
*Tuesday, October 8, 2013 at 12:03pm by Anonymous*

**math- statistics**

If the probability of a dancing lady accepting an initation to dance is 0.18, find the expected number of ladies you would have to ask before one accepts. I think that the answer is: 1(.18)+2(.18)+3(.18)...7(.18)+8(.18)+9(.18)=8.1 *round answers to three signifcant figures*
*Sunday, December 14, 2008 at 7:35pm by Sherri*

**math 116**

no 6-2(3x-3) =-18 6-6x+6=-18 -6 x + 12 = -18 -6 x = - 30 x = 5 check 6 - 2(15-3) = -18??? 6 - 24 = -18 -18 = -18 yes, check
*Thursday, February 19, 2009 at 4:33pm by Damon*

**Math Please Help ME :(**

10 5/18 = 9 23/18 8 5/6 = 8 15/18 9 23/18 - 8 15/18 = (9-8) + (23-15)/18 = 1 8/18 = 1 4/9 Or, 10 5/18 = 185/18 8 5/6 = 53/6 = 159/18 (185-159)/18 = 26/18 = 1 8/18 = 1 4/9 Do the others in like wise. Come back and show where you get stuck, if you do.
*Tuesday, September 18, 2012 at 4:23pm by Steve*

**math**

Did you make a sketch showing C somewhere between A and B ? Mark the position of C with x then AC =x-(-18) = x+18 and CB = 18-x then (x+18)/(18-x) = 4/5 cross-multiply 5x + 90 = 72 - 4x 9x = -18 x = -2 so C is at -2 check by counting.
*Wednesday, January 30, 2013 at 3:58am by Reiny*

**optimisation**

A = (1/2) pi r^2 + 2 r w perimeter = 2 r + 2 w + 2 pi r = 850 = 2 r(1+pi) + 2 w 425 = r(4.14) + 2 w 213 = 2.07 r + w w = (213 - 2.07 r) A = .5 pi r^2 + 2r(213 - 2.07r) A = 1.57 r^2 + 425 r - 4.14 r^2 2.57 r^2 -425 r = -A r^2 - 165 r = -A/2.57 r^2 - 165 r + 6806 = -A/2.57 + ...
*Friday, February 7, 2014 at 5:10pm by Damon*

**math**

a. G(t0 = 1.58*e^n. n = -0.213*t = -0.213*3 = -0.639. G(t) = 1.58*e^-0.639=1.58*0.5278=0.83. % per decade. b. 0.83%/dec. * (1/10dee.) =0.08 % per decade per decade.
*Thursday, July 19, 2012 at 10:34pm by Henry*

**fourth grade math**

1\2,4\9,4\18 Here's one way to find the least common multiple or common denominator. Write down the multiples of each of the denominators. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 9, 18, 27, 36 18, 36 Obviously, the common denominator is 18. 18/2 = 9; 1 * 9 = 9 1/2 = 9/18 4/9 = 8/18...
*Tuesday, December 14, 2010 at 12:48pm by Ms. Sue*

**math**

first thing find your common denominator 1 17/18 -14/18= 2 13/18 then if you have to you can make uncommon fractions 35/18-14/18= 49/18 then you decide
*Wednesday, October 20, 2010 at 8:57pm by Samuel Brogdon*

**Math (fractions)**

2 8/9 + 1 1/2 2 16/18 + 1 9/18 52/18 + 27/18 79/18
*Tuesday, April 6, 2010 at 7:54pm by Alex*

**math**

Which of the following is the solution to the matrix equation below? [0 9 2] [18] [3 2 1] x=[5] [1 -1 0] [-1] a) [-3 -2 18] b) [-3 2 -18] c) [-3] [-2] [18] d)[-3] [2] [-18]
*Wednesday, January 25, 2012 at 1:17pm by danny*

**math**

213(root(3))
*Tuesday, June 11, 2013 at 2:42am by Jassi*

**Math 115 3**

do I change the mixed number with a common denminator or just the fradction part first? 4 1/3 = 13/3 =78/18 3 1/9 = 28/9 =56/18 2 1/2 = 5/2 =45/18 78/18 -56/18 + 45/18 =67/18 =3 13/18
*Friday, January 9, 2009 at 5:12pm by Deb*

**Math**

Aaron has two types do iodine in his lab. He has brand 213 iodine, which costs 36 cents per ounce. He also has brand 856 iodine, which costs 1.58$ per ounce. How many ounces of brand 213 should be used if he has 63 ounces of brand 856 and wants to make a mixture that costs ...
*Thursday, October 10, 2013 at 8:12pm by Elizabeth*

**Statistics**

The mean and median sales prices of new homes sold in the U.S. in November 2010 were $213,000 and $268,000. Which of these numbers is the mean and which is the median? Explain how you know. I'm assuming the median is $213,000 and the mean is $268,000. However, I'm just ...
*Wednesday, May 22, 2013 at 11:15pm by Anonymous*

**Elementary Math**

MTH 213
*Monday, November 30, 2009 at 8:27pm by Shanta*

**business math**

$213.24
*Monday, April 8, 2013 at 2:17pm by tmouery*

**Math**

Multiplication facts: 2 x 9 means two rows times 9 columns. Facts: 2 x 9 = 18 18/2 = 9 18/9 = 2 9 x 2 = 18 Do the same with the other other numbers. Also, note that 2 and 9 are factors of 18 and 18 itself is the product of 2 and 9.
*Monday, February 11, 2008 at 4:40pm by Guido*

**math 213 #18**

A student claims that every prime greater than 3 is a term in the arithmetic sequence whose nth term is 6n + 1 or in the arithmetic sequence whose nth term is 6n – 1. Is this true? If so why?
*Tuesday, April 13, 2010 at 1:01am by dan*

**Physics**

The 16 kg mass has a weight of M*g = 156.8 N. Presumably, the cable that lifts the weight is wound around the axle and the cable that one pulls on is wrapped around the wheel outer rim. Input torque = 26 N*(2.3/2) m = 29.9 N-m Output torque = 156.8 N * (0.092/2 m) = 7.213 N-m ...
*Saturday, May 11, 2013 at 3:10pm by drwls*

**math**

Almost right. But you forgot to subtract 18 from the right side of the equation. 6x + 18 =0 6x/6 = -18/6 x = -3 To check it, substitute -3 for x. 6(-3) + 18 = 0 -18 + 18 = 0 That's it!
*Sunday, January 24, 2010 at 7:38pm by Ms. Sue*

**math**

simplify 144+(-317)+213 =?
*Friday, December 9, 2011 at 12:17am by Anonymous*

**math 213**

f(x) = x-2 f(x) = x^2 + 1 If (14,7) should be (4,17) :-(
*Saturday, August 18, 2012 at 12:26am by Steve*

**Math 213**

how to compute 10 - 3 -12
*Monday, February 10, 2014 at 9:47pm by rabia*

**Math 213**

10 - 15 = -5
*Monday, February 10, 2014 at 9:47pm by Ms. Sue*

**Math (fractions)**

2 8/9 + 1 1/2 You need the common denominator which is 16. 2 8/9 = 2 16/18 1 1/2 = 1 9/18 2 16/18 + 1 9/18 = 3 25/18 = 4 7/18
*Tuesday, April 6, 2010 at 7:54pm by Ms. Sue*

**math**

what is 27.4 213.321 39.38
*Saturday, May 23, 2009 at 12:48pm by ice*

**MTH 213-Elementary Math**

Let U = {u, n, i, t, e} A = {n, i, t} B = {n, e} C = {u, n, i, t, e} D = {u, e} Find each of the following:
*Monday, November 30, 2009 at 9:16pm by Ta*

**math :D**

which of the following is closest in value to .213 f-1/2 g-1/3 h-1/4 j-1/5 k-1/6 answer:j-1/5
*Wednesday, September 1, 2010 at 8:45am by anonymous1*

**math**

130% = 1.3 1.3 x $213.90 = 278.07
*Friday, November 9, 2012 at 10:33am by anonymous*

**Math**

What is 35 13/18 - 24 7/18 (by the way 13/18 and 7/18 are fractions)? Am i right, i think it is 11 6/18.
*Tuesday, October 30, 2012 at 7:21pm by Anonymous*

**Math 213 Elementary Math**

Hmmmmm. There is no need to keep posting this.
*Wednesday, August 5, 2009 at 2:42pm by bobpursley*

**Math 213 Elementary Math**

List all the subsets of {2, o, t}.
*Tuesday, August 4, 2009 at 10:01am by Shay*

**Math 213 Elementary Math**

1. List all the subsets of {2, o, t}.
*Wednesday, August 5, 2009 at 2:46pm by Shay*

**Math 213 Elementary Math**

1. List all the subsets of {2, o, t}.
*Tuesday, August 4, 2009 at 10:01am by Anonymous*

**Geometry**

This is a routine question, and would be an introductory type of question in a course of vector geometry. The fact that " I been on this for TWO MONTHS* " (your grammar also needs improvement) illustrates my objection to "home schooling" ..... end of editorial... I have a ...
*Monday, June 4, 2012 at 7:43pm by Reiny*

**math **

add write answers in lowest form . 13/18 + 11/18 = 24/18 = 1 6/18 = 1 2/6 is this right?
*Thursday, September 10, 2009 at 3:36pm by p*

**math**

Right. 18% means 18 parts of 100. Another way of writing that is 18 hundredths or 0.18.
*Wednesday, March 2, 2011 at 9:00pm by Ms. Sue*

**Math Algebra 2**

i got 18.18 for x and 18.18 for y and the profit would be $1454.54 does that look like its right?
*Sunday, April 6, 2008 at 5:33pm by John*

**Math**

I will do one. 2) M-7/18=-5/18 add seven eights to each side. M=(7-5)/18= 2/18= 1/9 I will be happy to check your work on the others.
*Sunday, December 7, 2008 at 5:40pm by bobpursley*

**Math 213 Elementary Math**

see other post. It is not necessary to make duplicate posts.
*Tuesday, August 4, 2009 at 3:41pm by bobpursley*

**math**

144+(-317)+213 i think the answer is 40
*Saturday, February 5, 2011 at 9:24am by :P smile*

**math**

7.211, 7.212, 7.213 . . . 7.298, 2.999
*Monday, August 15, 2011 at 8:41pm by Ms. Sue*

**Math**

123 132 213 231 321 312
*Thursday, September 29, 2011 at 9:51pm by Nuna*

**Math**

-15+12 ------ -18 +18 since -18+18 is zero the result is undefined.
*Saturday, August 16, 2008 at 6:16pm by Damon*

**math**

As usual, draw a diagram. the distance is easy, since we have a right triangle d^2 = 15^2 + 12^2 = 369 d = 19.2 The bearing is N (33+x) W where tan x = 12/15 x = 37° bearing is N 70° W Alternatively, and with much more work, (0,0) + (15 cos 123°,15 sin 123°) = (-8.17,12.58) (-...
*Tuesday, January 10, 2012 at 11:52am by Steve*

**math**

Okay 5/9 + 7/9 I know you change the denominator so 5/6 = 15/18 or 3/18 7/9 = 14/18 or 2/18 which one?
*Wednesday, October 20, 2010 at 9:55pm by Aly*

**math**

18.25, 18.29, 18.31, 18.34
*Wednesday, September 26, 2012 at 3:50pm by Ms. Sue*

**math**

Change to common denominator, then reduce. 18/18 - 3/18 - 11/18 = ?
*Monday, October 29, 2012 at 5:33pm by PsyDAG *

**math**

L = 6 h W = 3 h (L-2)(W-2)h = 4 (6h-2)(3h-2)h = 4 (18 h^2 - 18 h +4)h = 4 18 h^3 - 18 h^2 + 4 h - 4 = 0 That happens to be zero when h = 1, so that is a solution If h = 1 L = 6 W = 3 That answers the question, but check to see if there are other solutions dividing by (h-1) I ...
*Saturday, February 23, 2008 at 8:46pm by Damon*

**math 213**

I have no idea what they are asking for, nor what your | symbols represent. Fractions?
*Saturday, December 5, 2009 at 10:02pm by drwls*

**math 213**

a. true b. false U = {1,2,3,4,5} A = {1,2,3} B = {2,4,5} A' = {4,5} B' = {1,3} (AUB)' = {} A'UB' = {1,3,4,5} However A' ∩ B' = {}
*Saturday, August 18, 2012 at 12:17am by Steve*

**chemistry**

Calculate the change in entropy (ΔS˚) of reaction (J/K) for the equation as written. BaCO3(s) → BaO(s) + CO2(g) Table: S° (J/(K mol)) BaCO3(s) = 112 BaO(s) = 70.3 CO2(g) = 213.7 So the answer is -41.7 I thought to find the entropy of reaction you subract the ...
*Saturday, February 23, 2013 at 10:52pm by Carter*

**Math 115 3**

When adding or subtracting fractions, you first must get a common denominator. 2/3 - 1/6 + 5/9 = 12/18 - 3/18 + 10/18 = 19/18 = 1 1/18 Please try the second one yourself. I'm not sure about # 3. You'll probably get a response from another tutor if you post # 3 as a new question.
*Friday, January 9, 2009 at 5:12pm by Ms. Sue*

**Math homework**

no, (-18)(18) would be - 324 , not 1 what about (-18)(-1/18) ?
*Monday, October 4, 2010 at 3:57pm by Reiny*

**Math**

just list them: 101 112 202 123 213 303 ...
*Monday, December 17, 2012 at 11:39pm by Steve*

**math**

2-digit no --- x multiplied by 3 --- 3x added 18 --- 3x+18 divided by 8 --- (3x+18)/8 got 9 (3x+18)/8 = 9 3x+18 = 72 3x = 54 x =18
*Wednesday, September 1, 2010 at 3:45pm by Reiny*

**Math**

BTW, the answer in not 1/18 7/9 - (-13/18)= = 14/18 + 13/18 = 27/18 = 3/2 or 1 1/2
*Friday, February 1, 2008 at 9:20pm by Reiny*

**math**

Set up a proportion, cross multiply, and solve for x. (3/2)/1 = 18/x (3/2)x = 18 x = 18/(3/2) x = 18 * (2/3) x = 36/3 x = 12 feet Figure the other dimension the same way.
*Saturday, March 26, 2011 at 2:16pm by Ms. Sue*

**mathematics**

A retail jeweler sells a pair of gold earrings for $213.90. The jeweler uses a 130% markup based on cost. Based on this information, what was the wholesale cost of the earrings? A. $93.00 C. $276.90 B. $164.53 D. $278.07 213.90 divided by 130%=164.53 B
*Thursday, May 14, 2009 at 10:34pm by Emma*

**math**

1st of all its easier if u turn the fractions to improper frac. 16/3- 63/18 then, u get the least common ddenominator which is 18 then,your equation should be 96/18- 63/18 then subtract since the 2nd fraction is negative.... and you get 33/18 or 1 and 5/6 hope this helped:)
*Friday, January 4, 2013 at 3:11am by bieber510*

**MTH 213-Elementary Math**

I see a mapping such that n ----> 5n - 1 How is that for a hint?
*Monday, November 30, 2009 at 8:35pm by Reiny*

**math 116**

6-2(3x-3) =-18 6-6x-6=-18 12x=-6=18=24 12x=24 x=2 Your first step is incorrect. When you multiply two negatives, the answer is a positive. 6 - 6x + 6 = -18 I don't know where you got 12x. 6-2(3x-3) =-18 6 - 6x + 6 = -18 12 + 18 = 6x 5 = x Check it out by substituting 5 for x ...
*Thursday, February 19, 2009 at 4:33pm by Ms. Sue*

**math**

The number of ways is denoted (18,4), pronounced as "18 choose 4". Basically, we would choose the first one from 18, second from 17,.... Since the choices are independent, the number of choices are multiplied together to get 18*17*16*15. However, since the order of choices is ...
*Monday, March 14, 2011 at 8:12pm by MathMate*

**Physics/Biohemistry**

If 1/C1+1/C2+1/C3=1/Ceq and Ceq=3.18 mF, then replace the given variables as such: 1/6.54+1/8.19+1/C:unknown=1/3.18 Now it becomes an algebra problem: Multiply both sides of the eqn by 3.18, then you'll have: 3.18/6.54 +3.18/8.18+3.18/Cunknown=1 Simplify: .49+.39+3.18/C=1 1-(....
*Sunday, February 24, 2013 at 10:27pm by Sarah*

**Physics!!**

(a) Summing the components of the forces along the vertical direction provides F• sinα + N - m•g = 0, => F• sinα = m•g - N. For the horizontal direction we have F•cosα – F(fr) = 0 F(fr) = k•N, => F•cosα = k•N, F• sinα/ F•cosα = (m•g – N)/k•N...
*Tuesday, May 8, 2012 at 3:35pm by Elena*

**math**

y-intercept is a point where the graph of a function or relation intersects with the y-axis of the coordinate system. OR y-intercept is a point where x = 0 1 / 2 y = 9 x + 5 Multiply both sides by 2 y = 18 x + 10 for x = 0 y = 18 * 0 + 10 = 0 + 10 = 10 y-intercept = 10 3 x = 6...
*Friday, February 22, 2013 at 1:24pm by Bosnian*

**math 213**

Tell whether each of the following is true for all sets A, B If false, give a counterexample. A
*Saturday, August 18, 2012 at 12:10am by susan*

**MATH**

6(2y-3)=18 12y - 18 = 18 12y = 18 + 18 Take it from there.
*Wednesday, February 17, 2010 at 5:14pm by Ms. Sue*

**social studies**

http://www.timeanddate.com/worldclock/difference.html?p1=213
*Tuesday, September 7, 2010 at 11:19pm by Writeacher*

**Math Algebra 2**

hey thanks alot for all that help i graphed it on some paper and in my calculator and i think for the answer i got 18.18 for x and 18.18 for y and the profit would be $1454.54 can anyone confirm if this is correct? thanks x=shirt y=pants
*Sunday, April 6, 2008 at 5:33pm by John*

**physics**

Divide the energy acquired at the top of the hill (kinetic PLUS potential) by the elapsed 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 M = 690 kg V = 24.9 m/s P = (213,900 + 34,290)/15.7 = 18,808 W = 21 horsepower ...
*Saturday, March 1, 2008 at 12:38pm by drwls*

**Math 213**

Please....! There are two questions here. What, if anything, is wrong with the following numerals? A. 306four B. 1023two
*Thursday, January 20, 2011 at 4:34pm by Jonathan*

**Physics**

Jack rides his 213kg motor cross bike 25.3m up a 30.0 degree slope at a constant speed. what is the energy his bike expends if the frictional force opposing its movement is one-tenth its weight? Are you sure the mass is 213 kg? Shouldn't it be 21.3 kg? Or does that include ...
*Friday, August 3, 2007 at 7:46am by Jarin*

**math**

two digit number --- x multiplied it by 2 --- 2x added 18 ----- 2x + 18 divided by 8 --- (2x+18)/8 (2x+18)/8 = 9 2x + 18 = 72 2x = 54 x = 27
*Tuesday, March 1, 2011 at 7:57am by Reiny*

**help asap!!**

if the length is x, the width is x/5 The area is x(x/5) = x^2/5 p = 2(x+x/5) = 12x/5 = 213 x = 1065/12 = 88.75 so, the area is 88.75^2 / 5 = 1575.3125 check: length = 88.75 width = 17.75 p = 2(88.75+17.75) = 2(106.5) = 213
*Friday, February 22, 2013 at 1:40pm by Steve*

**algebra**

Sub in t=6 into the formula v=-1/3t+4 v=-1/3(6)+4 v=-1/18+4 v=-1/18+72/18 (4 is the same as 4/1 and when multiplied by 18, 72/18) v=71/18
*Monday, December 7, 2009 at 11:23pm by ALan*

**Algebra**

ok slope: (-9/18 - 6/18)/ 9/18-2/18 =(-15/18)/ (7/18) this is where i get stuck how do i simplify these so i can substitute them into slope intercept form
*Wednesday, January 13, 2010 at 4:42pm by Mary*

**pre algebra**

(2/3)/(3/4) = (2/3)x(4/3) = 8/9 (Are you sure you did not mean (2/3) x (3/4), which is 1/2 ? (4/5)x(5/6) = 4/6 = 2/3 The common denominator will be 18. 9/18 + 16/18 + 12/18 = 37/18
*Monday, December 7, 2009 at 7:40pm by drwls*

**algebra**

What is the equation of the line that passes thru (1/2, -1/2) and (1/9, 3/9)? I keep on messing up w/ the complex fractions. slope: (-9/18 - 6/18)/ 9/18-2/18 =(-15/18)/ (7/18) this is where i get stuck how do i simplify these so i can substitute them into slope intercept form
*Wednesday, January 13, 2010 at 5:30pm by Mary*

**math**

5a-3a= 18 2a = 18 Divide both sides of the equation by 2. a = 9 ~~~~~~~~~~~~~~~~~~~~~~~ You can prove this by substituting 9 for a in the original equation. 5(9) - 3(9) = 18 45 - 27 = 18 Yep!! It's right.
*Tuesday, September 18, 2012 at 5:35pm by Ms. Sue*

**math**

3x+4y=18 you just plug in 2 and 3.. 3(2)+4(3)=18 6+12=18 18=18 so yes, (2,3) is the solution for the first problem. 2x-y=1 again, plug in 2 and 3.. 2(2)-1=1 4-1=1 3=1 so no, it's not the solution for the problem hope I helped!
*Monday, October 26, 2009 at 6:47pm by rachel*

**Math**

Yes. -18 = (-6)+ 3(-4) -18 = -6 + (-12) -18 = -18
*Wednesday, January 18, 2012 at 9:05pm by Ms. Sue*

**Math**

Definition: the factors are the numbers you multiply together to get another number. For instance,18=1x18=2x9=3x6. Therefore, the factors of 18 are:1,2,3 ,6,9,and 18. When a number is divided by one of its' factors, there is no re- mainder. 4 and 5 are not factors of 18 ...
*Tuesday, July 6, 2010 at 5:18pm by Henry*

**Math**

102,105,111,114,120,123,129,_,_,_,_,_, 201,204,210,213,219
*Monday, January 24, 2011 at 4:06pm by Jay*

**math,pre statistics**

U is underweight, N is not-underweight a) so you want UUUU = (.18)(.18)(.18)(.18) = .18^4 = .00105 b) wouldn't that be all not-underweight ? or (.82)^4 = .45212 c) at least one underweight implies 1 - Prob(all non-overweight) = 1-.45212 Since there are only 5 cases possible, I...
*Friday, February 6, 2009 at 8:58am by Reiny*

**Math**

If the two numbers are a and b a-b=0 3a-2b = 18 since a=b, 3a-2a=18 a = 18 So, b=18
*Sunday, January 12, 2014 at 11:42pm by Steve*

**Geometry**

the center of the circle will be at the intersection of the perpendicular bisectors of two of the line segments joining the points. If we label the points A:(1,3) B:(5,11) C:(11,4) then we have AB: midpoint=(3,7) slope=2 BC: midpoint=(8,15/2) slope=-7/6 CA: midpoint=(6,7/2) ...
*Sunday, May 20, 2012 at 11:41pm by Steve*

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