Saturday

April 19, 2014

April 19, 2014

Number of results: 77,522

**Algebra**

0=2x-1 x=1/2, y=1/4-1/2-23=-23.75 That is with Calculus. Now in Algebra, do this y=x^2-x + xxxx -23-xxxxx we are going to make a difference of prefect squares. y=x^2-x+1/4 -23-1/4 y= (x-1/2)^2 - (sqrt22.75)^2 so clearly, this is a minumum at x=1/2
*Monday, June 20, 2011 at 4:56pm by bobpursley*

**Algebra**

Now let's see, 2014 - 1991 = 23 so e(23) = .42(23) + 72.6 e(23) = 82.3 well, that is encouraging :)
*Tuesday, February 11, 2014 at 8:16pm by Damon*

**Algebra -polynomial**

Solve the polynomial 40x^2+2x-65 Notice that for x = 1 the value is -23. The number 23 is a prime number and the only factors are thus 23 and 1 up to signs. So, you can simply the search for the factors of the polynomial a great deal by substituting: x = 1 + t which yields 40 ...
*Monday, May 7, 2007 at 8:28pm by Algebra Help*

**ALGEBRA!....**

Got it! Initial population is 23^2, which = 529. 23^2 + 48 = 577 = 576 + 1, so 23^2 + 48 = 24^2 + 1, and 23^2 + 96 = 625, so 23^2 = 25^2 Did it by exhaustion with Excel. Check back later if I can do it algebraicly!
*Monday, April 1, 2013 at 4:45am by Wayne*

**algebra**

23 percent means 23/100 or 0.23 or 23 hundredths.
*Saturday, October 30, 2010 at 8:26pm by Ms. Sue*

**algebra**

plug and chug: x = (-3±√(3^2-4*2*4))/(2*2) = (-3±√(9-32))/4 = (-3±i√23)/4 check: 2(-3/4+√23/4 i)^2 + 3(-3/4+√23/4 i) + 4 2(9/16 - 3√23/8 i - 23/16) - 9/4 + 3√23/4 i + 4 = 9/8 - 3√23/4 i - 23/8 - 9/4 + 3√23/4 i + 4 = 0 ...
*Saturday, October 5, 2013 at 5:29pm by Steve*

**algebra**

3(q+1)-9=23 3q *3-9=23 3q*3 -9+9=23+9 I am not sure what to do with the 3 I think that I am suppose to add 23+9 on the right side. this is where I get confused.
*Monday, January 11, 2010 at 7:43pm by mae*

**Geometry**

There is only one pair of equal angles, so the number of triples which are isosceles is 3 that is, 23 23 35, 23 23 41, and 23 23 113 total number of triplets: 1. 23 not in the triple --- 1 2. one 23 --- choose 2 from the remaining 3 , C(3,2) = 3 3. two 23's --- 3 a total of 7 ...
*Sunday, July 24, 2011 at 1:17pm by Reiny*

**ALGEBRA**

5 3/4 = 23/4 The reciprocal is 4/23 23/4 * 4/23 = 92/92 = 1 You must be right!
*Saturday, January 15, 2011 at 9:09pm by Ms. Sue*

**7th grade pre-algebra**

C must equal 22 and A must equal 23 since 23 is a prime number. So, 23(23-22)=23
*Monday, September 23, 2013 at 9:14pm by GW*

**pre- algebra 1**

Jose = 23 Robin = 23 - 9 = ? Lee = 23 - 9 - 5 = ?
*Saturday, November 17, 2012 at 8:47am by PsyDAG*

**Algebra, URGENT!!!**

1. x^2 + (x+6)^2 = 8^2 x^2 + x^2 + 12x + 36 - 64 = 0 2x^2 + 12x - 28=0 x^2 + 6x - 14 = 0 x^2 + 6x = 14 , completing the square .... x^2 + 6x + 9 = 14+9 (x+3)^2 = 23 x+3 = ± √23 x = -3 ± √23 but x has to be positive so x = √23 - 3 so one leg is √23 - 3...
*Wednesday, November 20, 2013 at 9:52pm by Reiny*

**pre algebra**

23/50 * 50 2/3 23/50 * (150+2)/50 23/50 * 152/50 23/50 * 76/25 = (23*76)/(1250) I guess it will reduce some.
*Tuesday, July 5, 2011 at 8:22pm by bobpursley*

**algebra**

I am not exactly sure if this answer is correct. I ran it through my Calculator and here is what I get.. X2+4x+4=36 = x2+4x-32=0 =x2-4x+8x-32=0 =x(x2/x – 22*x/x) + 23 (23*x/23- 25/23) = 0 = x(x-4) +23 (x-4) = 0 = (x-4) (x+8) = 0 = x - 4 = 0 = x +4 = 0 X = 4 X = -8 X = 4, -8
*Monday, March 10, 2008 at 9:07pm by Mike*

**AP Chem**

(H2) = 1.23/1L = 1.23M (I2) = 1.23/1L = 1.23M (HI) = 1.23/1 = 1.23M First you want to calculate Q = (HI)^2/(H2)(I2) = (1.23)^2(1.23)(1.23) = 1.00 which means HI is too small and H2 and I2 are too large so the reaction will go to the right. ............H2 + I2 ===> 2HI ...
*Sunday, January 8, 2012 at 6:27pm by DrBob222*

**Physics**

you have 8microC total charge. You have 23microF capacitance. Voltage= Qtotal/C=8/23 volts. on C1, q=C1*8/23=7micro*8/23=56/23 micro F on C2, q=16micro*8/23=128/23 microC adding q1+q2, 184/23 microF=8microF
*Tuesday, February 14, 2012 at 9:45pm by bobpursley*

**pre-algebra**

a(a-c)=23 a-c=23/a c=a-23/a
*Thursday, September 13, 2007 at 6:52pm by Mischa*

**algebra 1**

8x-(2x+7)=23 6x - 7 = 23 6x = 23 + 7 x = 30/6 x = ?
*Tuesday, November 16, 2010 at 2:56pm by Ms. Sue*

**pre-algebra**

Since 23 is a prime number it can only have two factors: 23 and 1. Therefore, A must equal 23 and C must equal 22.
*Thursday, September 13, 2007 at 6:52pm by GW*

**pre-algebra**

Since 23 is a prime number it can only have two factors: 23 and 1. Therefore, A must equal 23 and C must equal 22.
*Thursday, September 13, 2007 at 6:52pm by GW*

**algebra**

L = Length W = Width P = Perimeter P = 2 L + 2 W 2 ( L + W ) = P 2 ( 23 + W ) > 72 Diwide both sides by 2 23 + W > 72 / 2 23 + W > 36 W > 36 - 23 W > 13 cm
*Saturday, April 14, 2012 at 2:56am by Bosnian*

**Algebra 1A**

SIMPLIFY: 9-6*11-17= DIVIDE IF POSSIBLE 3-/23/(1/-23SELECT THE CORRECT CHOICE BELOW AND FILL IN ANY ANSWER BOX A. 3/-23/(1/-23) SIMPLIFY WITH AN INTEGER OR FRACTION B. THE ANSWER IS UNDEFINED.
*Sunday, September 27, 2009 at 1:02am by Terri*

**math**

1st one by 30 ----> 9x - 6y = 120 2nd by 20 -------> 8x +6y = 980/23 add them 17x = 3740/23 x = 220/23 back into 8x + 6y = 980/23 1760/23 + 6y = 980/23 6y = -780/23 y = -130/23
*Sunday, July 24, 2011 at 8:32pm by Reiny*

**Math**

It does not matter to me what form. However if they give me two points like (5, 1), (–3, 4) , I am likely to do the following: (y-1)/(x-5) = (4-1)/(-3-5) (y-1)/(x-5) = (3)/(-8) -8(y-1) = 3 (x-5) -8y + 8 = 3 x -15 -8 y = 3 x -23 y = -(3/8) x + 23/8 which is in slope intercept ...
*Wednesday, January 8, 2014 at 2:55pm by Damon*

**math**

Your answer doesn't make sense. Your problem states that he spent three times $23.50 and had $23.50 left over. You're supposed to write an expression. 3(23.5) + 23.5 = x 4(23.5) = x ? = x
*Monday, July 26, 2010 at 3:59pm by Ms. Sue*

**Algebra 2**

= Prob(both red) + Prob(both white) + prob(both blue) = (5/24)(4/23) + (9/24)(8/23) + (10/24)(9/23) = 5/138 + 3/23 + 15/92 = 91/276
*Monday, January 30, 2012 at 11:56am by Reiny*

**math**

2x^2 -12x +23=2*(x^2-6x+23/2) (x-a)^2= x^2-2ax+a^2 (x-3)^2= x^2-2*3*x+3^2= x^2-6x+3^2 2*(x^2-6x+23/2)= =2*(x^2-2*3*x +3^2+ 23/2 -3^2) =2(x^2-6x+3^2)+2*(23/2)-2*(3^2) =2*(x-3)^2+23-2*9 =2*(x-3)^2+23-18 =2*(x-3)^2 +5 Proof: 2*(x-3)^2+5=2*(x^2-2*3*x+3^2)+5 =2*(x^2-6x+9)+5 =2x^2-...
*Friday, December 10, 2010 at 5:18am by Bosnian*

**9th grade algebra**

-6-[-2-5(squared)]= =-6-[-2-25]= =-6-(-23)= =-23+6 =-17
*Sunday, September 13, 2009 at 10:28am by venessa*

**Algebra**

7m - 23 =40 + 23 +23 then 7m=63 then you divide 63 by 7 it equal 9 so the ans. is m=9 :)
*Friday, November 14, 2008 at 5:49pm by Shika*

**math**

(8+6+6+3+x)divide by 2 = 6 so 8+6+6+3=23 then 23+x/2=6 6 multiply by 2= 23+x 12=23+x x= -11 i think it can be positive anwser
*Thursday, September 16, 2010 at 5:58pm by esther*

**algebra**

On the problem 9x+7y=4 x=23-4y solve by substitution Do you mean to put 9 in the place of x=23-4y (9x=23-4y)
*Thursday, November 26, 2009 at 1:54pm by Terri*

**math**

(8+6+6+3+x)divide by 5 = 6 so 8+6+6+3=23 then 23+x/5=6 6 multiply by 5= 23+x 30=23+x x= 7 sorry that is not wrong my mistake
*Thursday, September 16, 2010 at 5:58pm by esther*

**algebra**

253 miles/ 23/2 gallons = 506/23 mi/gal= = 22 mpg
*Saturday, July 9, 2011 at 7:45pm by bobpursley*

**algebra**

3(q+1)-9=23 3q+3-9=23 3q-6=23 3q=29 __ q=9.66
*Monday, January 11, 2010 at 7:41pm by Natalie*

**statistics**

None under 100 will = 23 995 = 9 + 9 + 5 = 23 599 = 9 + 9 + 5 = 23 959 = 9 + 9 + 5 = 23 869 779 788 Do you have a formula you can use? I don't.
*Tuesday, September 14, 2010 at 3:08pm by PsyDAG*

**Algebra**

C=23-A 9A+8(23-A)=193 9A+184-8A=193 184+A=193 A=9 C=23-A C=23-9 C=14 14 Children attended the play
*Sunday, July 29, 2007 at 9:05pm by jerard*

**Algebra**

Find the smallest positive integer N \neq 23 such that the fraction \frac {N-23} { 7N+6 } is not in simplest terms.
*Tuesday, March 26, 2013 at 11:23pm by John*

**Algebra**

Find the smallest positive integer N \neq 23 such that the fraction \frac {N-23} { 7N+6 } is not in simplest terms.
*Wednesday, March 27, 2013 at 11:46pm by Anonymous*

**ALgebra**

4z-[23-5(3z-2)] Use distributive property: 4z-[23-15z+10] Subtract what's in the brackets: 4z-23+15z+10 Add like terms: 19z-33
*Thursday, November 11, 2010 at 4:09pm by Dee*

**ALGEBRA**

3(-1/3) + 8(3) =? 23 -1+24=23
*Monday, December 5, 2011 at 5:38pm by Anonymous*

**ap chemistry**

.......KOH + HA ==> KA + H2O I.....0.23..0.45....0....0 C....-0.23.-0.23...0.23..0.23 E......0....0.22...0.23 (KA) = 0.23 mols/0.680 L = ?M (HA) = 0.22 mols/0.680 L = ?M pH = pKa + log (base)/(acid) pH = ?
*Tuesday, February 4, 2014 at 6:34pm by DrBob222*

**algebra 1**

Substitution means we express one variable in terms of another, and substitute this expression into the second equation. m+2n=1 ...(1) 5m+3n=-23 ...(2) From (1), we have m+2n=1 subtract 2n from each side to get m+2n-2n=1-2n m=1-2n ...(1a) Substitute m from (1a) into (2) to get...
*Tuesday, January 18, 2011 at 10:55pm by MathMate*

**please help me**

If X = 0.2323... then 100X = 23.2323..., so 99X = 23.2323... - 0.2323... = 23. So X = 23/99. 23 is a prime number, so you can't simplify that any more.
*Wednesday, August 15, 2012 at 3:34pm by David Q/R*

**Math**

just for fun, let's see when v = 0 9.8 t = 23 t = 2.3 seconds at top so our problem is all on the way up. so h(2) = -4.9(4) + 23(2) + 2 h(1.5)=-4.9(2.25)+23(1.5) + 2 h(2)-h(1.5) = -4.9(4-2.25) + 23(.5) = 4.5 so v average = 4.5/.5 = 9 m/s part b well I already differentiated to...
*Friday, February 14, 2014 at 1:01pm by Damon*

**algebra**

3(q+1)-9=23 3q + 3 - 9 = 23 3q = 23 - 3 + 9 3q = 29 q = 9 2/3
*Monday, January 11, 2010 at 7:41pm by Ms. Sue*

**algebra 2 ap**

23000(.93)^n = 3000 .93^n = 3/23 log both sides log (.39^n) = log (3/23) n log .39 = log (3/23) n = log (3/23) / log .93 = appr 28 years Unrealistic question 1. Using a car for a job for 28 years 2. Such low level of depreciation.
*Sunday, April 28, 2013 at 4:10am by Reiny*

**algebra**

Which properties did Carmen use to solve the following problem? 17 + (45 + 23) 17 + (23 + 45) (17 + 23) + 45 40 + 45 85
*Thursday, November 17, 2011 at 11:51am by garrett*

**Alegbra**

when you multiply 0.5x+0.5y=45/23 by 10 you get 5x + 5y = 450/23 (you don't multiply top and bottom by 10, if you did, you wouldn't have changed the right side at all, only the left side. And remember, whatever you do to one side, you must do to the other) I would then divide ...
*Thursday, April 2, 2009 at 9:19pm by Reiny*

**Math**

Michael, your equation d - 1/4 - 1/5 - 1/6 = 9 should have been d - (1/4)d - (1/5)d - (1/6)d = 9 , this times 60 60d - 15d - 12d - 10d = 540 23d = 540 d = 23.478 he had appr. 23.5 ducats I don't know if a ducat has smaller denominations, but I'm 100% sure of my math Proof: 1/4...
*Friday, November 16, 2007 at 6:04pm by Reiny*

**calculus**

1)f'(x)=(1/2)*3(x^2-6x+23)^2*(2x-6)= (1/2)*2(x-3)*3(x^2-6x+23)^2= (x-3)*3(x^2-6x+26)=3(x-3)(x^2-6x+23) In the differential equation we separate variables: 27*sqrt(y)dy=2*(x-3)*sqrt(x^2-6x+23)dx Let z=x^2-6x+23 then dz=(x^2-6x+23)'dx dz=(2x-6)dx=2*(x-3)dx 27sqrt(y)dy=sqrt(z)dz ...
*Sunday, May 22, 2011 at 1:33pm by Mgraph*

**Algebra**

call the middle size m then the long piece is 3 m and the short piece is 3m-23 so (3m-23) + m + 3m = 40 7 m -23 = 40 solve for m
*Friday, November 14, 2008 at 5:49pm by Damon*

**ALgebra**

1. Your prob. says sam has 23qtrs,but I'm assuming you meant 23 coins; he can't have 23 qtrs if he only has 3.50. x dimes, y qtrs, Eq1: x + y = 23 coins, 0.10x + 0.25y = 3.50, Multiply both sides by 20: Eq2: 2x + 5y = 70. Solve the 2 Eqs: x + y = 23, 2x + 5y = 70, Multiply the...
*Thursday, October 28, 2010 at 4:42pm by Henry*

**math**

The quotient of 5/31 divided by 15/23, reduced to the lowest fraction, is A. 23/93. B. 93/23 or 4 1/23. C. 75/373. D. 115/465. Is it b?
*Saturday, August 18, 2012 at 6:05pm by Sara*

**Consumer Math**

The quoient of 5/31 divided by 15/23 , reduced to lowest fraction is B. 23/93 C. 75/373 D. 93/23 or 4 1/23 I choose D
*Tuesday, January 28, 2014 at 12:55pm by Shawn*

**Math (Algebra/Pre-Algebra)**

so a = 11 and d = 3, so 23 = 11 + (23-1) 3. The 23rd term is 77 because 11 + 22(3) = 77 =]
*Thursday, June 4, 2009 at 9:11pm by Samantha*

**math**

12/(23/8) 12 * ( =8/23) = 96/23 = 4 4/23 Try the others the same way.
*Wednesday, December 18, 2013 at 7:25pm by Ms. Sue*

**algebra 1**

23000/1000 = 23 23*2 = 46 degree-drop therefore, 65-46 = 19 degrees so there,, :)
*Tuesday, October 26, 2010 at 9:46pm by jai*

**9th grad algebra**

multiply entire first equation by 5 5 y =25 x - 40 5 y = 2 x + 6 --------------- 0 y = 23 x -46 23 x = 46 x = 2 etc
*Tuesday, November 16, 2010 at 8:59pm by Damon*

**Algebra 1**

23=2x+(x+3)+x 23 = 4x + 3 Subtract 3 from both sides. 20 = 4x
*Tuesday, October 1, 2013 at 9:58pm by Ms. Sue*

**algebra**

for every increase of 1 in x, y decreeases by 3 this gives us 3x y=0=23 so, y=23-3x
*Saturday, February 5, 2011 at 7:40pm by dave*

**Algebra 2**

the line through (12, 2) and (35, 19) has slope (19-2)/(35-12) = 17/23 the line through (5,14) with that slope is (y-14)/(x-5) = 17/23 23(y-14) = 17(x-5) 23y-322 = 17x - 85 y = 17/23 x + 237/23
*Wednesday, February 1, 2012 at 11:13pm by Steve*

**math**

(x+5)*(x-4)=532 x^2+x-20=532 x^2+x-552=0 (x-23)*(x+24)=0 x=23, so length, width is 23-4, and 23-5
*Tuesday, August 6, 2013 at 9:45pm by bobpursley*

**algebra**

g(-5)=-4(-5)+3=23 f(23) = -2(23)-7 = -53 (f o g)(-5) = -53
*Friday, March 2, 2012 at 9:50am by Dean*

**algebra**

not exactly. yes, the plumber will have enough, but I came up with 11 1/2 ft 2 7/8 * 4 = 23/8 * 4 = 23/2 = 11 R1 or rather 1/2 (remainder) Hope that helped!
*Wednesday, May 26, 2010 at 7:35pm by lynnette*

**Math**

"move over" is not a mathematical operation tan 46.27 = x / (y+100) multiply both sides by y+100 (y+100)tan46.27 = x y tan46.23 + 100tan46.23 = x ytan46.23 = x - 100tan46.23 y = (x - 100tan46.23)/(tan46.23)
*Sunday, May 15, 2011 at 7:53pm by Reiny*

**Math, Algebra**

5x+7y=23 7y = 23 - 5x y = (23 - 5x) / 7
*Friday, March 22, 2013 at 7:33pm by Ms. Sue*

**Algebra**

Hello, can someone tell me if I got the following solve and check work correct? 1. solve and check 1/2x = 3 5/6 1/2x = 3 5/6 1/2x = 23/6 3x = 23/3 x = 23/3 And to check for it 1/2x = 3 5/6 1/2x = 23/6 46x = 6 x = 6/46 x = 3/23 2. Solve and check 3x + 2 / 2 = 7 3x + 2 / 2 = 7 ...
*Tuesday, April 13, 2010 at 11:24pm by Tamir*

**College algebra**

Let X be distance per hour, Ist trip=18miles =18/X 2nd trip=23miles =23/X,=1hr longer speed,S=2nd trip-1st trip X=23-18 X=5mph. checkings 23/5 -18/5 =4.6-3.6=1hr
*Friday, June 22, 2012 at 10:54am by Blessing*

**Algebra 1**

yes, you were not finished for my 2nd: The square root of a number times itself gives you the number itself e.g. (√5)(√5) = √25 = 5 √23(√23) = √529 = 23 √a(√a) = a
*Monday, January 9, 2012 at 5:51pm by Reiny*

**algebra**

Janet invested $23,000, part at 6% and part at 17%. If the total interest at the end of the year is $2,260, how much did she invest at 6%? Let x be the amount invested at 6% Then 23,000 - x is invested at 17%. 0.06 x + 0.17 (23,000 - x) = 2260. That equation can be solved fo x
*Tuesday, June 5, 2007 at 1:22am by veronica*

**Algebra**

How about: let the shortest piece be x cm <the shortest piece is 23 cm shorter than the longest piece> or the longest piece is 23 more than the shortest piece, so longest = x+23 <The longest piece is 3 times as long as the middle-sized piece> or the middle piece is...
*Friday, November 14, 2008 at 5:49pm by Reiny*

**Calculus**

a = -3.72 v = -3.72t + c when t = 0, v = 23 so c = 23 v = -3.72t + 23 s = -1.86t^2 + 23t + k , where s is the height when t = 0 , s = 0, so k = 0 max of s is obtained when v = 0 3.72t = 23 t = 23/3.72 = 2300/372 = 575/93 when t = 575/93 s = .... use your calculator I got appr ...
*Monday, May 13, 2013 at 6:57am by Reiny*

**Math**

Yes, your method satisfies what the teacher needs, namely give an estimate of the value, and be able to state whether the exact answer is higher or lower than your estimate. If you want to have a closer estimate (or even the exact answer), here's what I would do, knowing that ...
*Tuesday, June 9, 2009 at 7:55pm by MathMate*

**algebra/ inequalities**

Posted by lauren on Thursday, April 17, 2008 at 8:45pm in response to ALGEBRA. the problem is 92 is greater than or equal to negative 4p. why is the answer p is greater than or equal to negative 23? I am confused! why is it not p is less than or equal to negative 23?
*Thursday, April 17, 2008 at 8:46pm by lauren*

**college algebra**

1985 , --- t = 0 1996 , --- t = 11 etc. b) you will have to do the graph, hard to show graphs on here c) set T = 23 23 = (3/5)n + 5 18 = (3/5)n 90 = 3n n= 30 years from 1985 or in 2075
*Sunday, May 9, 2010 at 11:22pm by Reiny*

**algebra**

3d+d=23 d=23/4=5.75 feet 3d= you do it.
*Monday, October 4, 2010 at 5:23pm by bobpursley*

**Algebra II**

The ground speed is the vector sum of 212 km/h west and 23.6 km/h south. Ground speed = sqrt[(212)^2 + 23.6)^2] = 213.3 km/h Direction = tan^-1(23.6/212) S of W That is 6.35 degrees S of W, or a bearing 263.65 degrees
*Wednesday, November 2, 2011 at 9:53am by drwls*

**algebra**

First evaluate expressions inside parentheses: 5 + 5^2 * 23 + 27 exponents next: 5 + 25 * 23 + 27 Then multiply: 5 + 575 + 27 Now the addition: 607
*Thursday, November 10, 2011 at 9:48am by Steve*

**Chemistry**

So since the vapor pressure of water is 23.8 torr p = 0.99 * 23.8 p = 23.6 is this right?
*Monday, February 9, 2009 at 9:21pm by Andrew*

**Math**

I = Po*r*t = $23. 820*(r/360)*52 = 23 118.44444r = 23 r = 0.194 = 19.4 %.
*Saturday, June 22, 2013 at 4:07pm by Henry *

**precalculus II**

(x-2)5^x - 5^(x+2) = 0 I see a common factor of 5^x 5^x( x-2 + 5^2) = 0 5^x(x + 23) = 0 5^x = 0 or x = -23 but 5^x = 0 has no solution, so x = -23
*Tuesday, February 4, 2014 at 10:40pm by Reiny*

**math**

??I got this when I followed steve's steps... optimal solution: c=191/23; x=2750/23; y=3000/23; z=0
*Wednesday, February 15, 2012 at 8:44am by James*

**statistics**

P(20 < x < 23) = P(X = 20 ) + P (X = 21) + P(X = 22) + P(X = 23) P(20 < x < 23) = (30C20)(.23)^20(.77)^10 + (30C21)(.23)^21(.77)^9 + (30C22)(.23)^22(.77)^8 + (30C23)(.23)^23(.77)^7 = ?
*Monday, November 4, 2013 at 1:42pm by Kuai*

**math**

t1 = 23 ---> a = 23 t3 = 92 --->ar^2 = 92 divide them r^2 = 4 r = ± 2 sum(n) = a(r^n - 1)/(r-1) = 6813 If r = 2 23( 2^n - 1)/(2-1) = 6813 2^n - 1 = 296.21... ------> not a whole number so there can't be a sum of 6813 if r = -2 23((-2)^n - 1)/(-2-1) = 6813 (-2)^n = -...
*Monday, June 3, 2013 at 7:54pm by Reiny*

**Pre Calc**

If I am understanding this picture, a right triangle is formed with angle A = 50 degrees and side b = 23 (15 + 8). You need the length of a, which is the streetlamp. tan A = opp/adj = a/b = a/23 tan 50 = a/23 1.19 = a/23 Solve for a, for your answer
*Wednesday, January 26, 2011 at 9:49pm by helper*

**MATH**

Complete the squares of each squared term: 5y^2 - 2x^2 - 10y - 12x = 23 5(y-1)^2-5 -2(x+3)^2+18 = 23 5(y-1)^2 -2(x+3)^2 = 10 ((y-1)/sqrt(2))^2 -((x+3)/sqrt(5))^2=1 From the above, the centre is located at (-3,1) and it is a hyperbola expressed in the form ((x/a)^2-(y/b)^2=1). ...
*Monday, September 26, 2011 at 10:06pm by MathMate*

**statistics**

they gave me n=30 and p=.23 to get the answers for P(20,x,23)= and P(x.23)= Im just having a hard time with all of this
*Wednesday, October 30, 2013 at 11:11pm by Amy*

**calculus**

Please confirm or correct typo: Using 3(x-3)(x^2-6x+23)^(1/2) as the answer to differentiating f(x)=(x^2-6x+23)^(3/2) So f'(x)=3(x-3)(x^2-6x+23)^(1/2) For dy/dx= (2/27)*(x-3)*((x^2-6x+23)/(y))^1/2 Separate variables and integrate: ∫ y^(1/2) dy = ∫ (2/27)(x-3)(x^2-6x+23...
*Sunday, May 22, 2011 at 1:33pm by MathMate*

**algebra**

Let x equal the two sides of equal length. 2x + (x - 7) = 23 3x - 7 = 23 3x = 30 x = 10
*Tuesday, March 29, 2011 at 11:29am by Ms. Sue*

**algebra**

4y + 7x = -23 4y = - 23 - 7x Divide both sides with 4 y = (- 7 / 4 ) x - 23 / 4 y= -1.75 x - 5.75 y = - ( 1.75 x + 5.75 )
*Saturday, October 15, 2011 at 11:15pm by Anonymous*

**algebra**

drwis used 10^(-7) instead of 10^7. 8.23*10^7=8.23*10000000
*Sunday, August 14, 2011 at 7:50am by Anonymous*

**Intermediate Algebra**

11 1/2 * 11^3 = 23/2 * 11^3 = 23/2 * 1331 = 15,306.5
*Wednesday, October 2, 2013 at 1:17am by Henry *

**MATH**

41 - a = 23 add a to both sides ___+ a = +a ------------- 41 = 23 + a now add -23 to both sides -23=-23 ------------- 41-23 = a 18 = a
*Monday, January 7, 2008 at 6:46pm by Damon*

**Intermediate Algebra**

A. x = 5 f ( 5 ) = 2 * 5 + 3.50 = 10 + 3.50 = 13.50 $ B. x = 3 / 4 f ( 3 / 4 ) = 2 * 3 / 4 + 3.50 = 6 / 4 + 3.50 = 6 / 4 + 7 / 2 = 6 / 4 + 14 / 4 = 20 / 4 = 5 $ C. f ( x ) = 50 50 = 2 x + 3.5 50 - 3. 5 = 2 x 46 . 5 = 2 x Divide both sides by 2 46.5 / 2 = x 23.25 = x x = 23.25 ...
*Sunday, April 1, 2012 at 3:25pm by Bosnian*

**math**

Things are a bit murky, but 2*5^x - x = 23 (2*5)^x - x = 23 are both tough to solve Now, 5^2 - 2 = 23, but that doesn't fit the alleged formula. I suspect a typo
*Friday, November 8, 2013 at 12:59pm by Steve*

**álgebra**

23*81*12=12*23*n
*Friday, October 8, 2010 at 4:20pm by alisson*

**math**

3*23 4*23 5*23 69 92 115
*Saturday, March 2, 2013 at 6:37pm by Damon*

**Algebra**

7X-4+3X=23+X You need to combine like terms and get the knowns on one side and the unknowns on the other side of the equation. 10x - x = 23 + 4 9x = 27 x = 27/9 x = 3
*Monday, May 24, 2010 at 4:20pm by Ms. Sue*

**2nd grade**

Christine found 23 on the 200 chart.She said, "23 is the interval 20 to 29." Name three other intervals 23 is in.
*Tuesday, October 27, 2009 at 3:43pm by Dimi*

**Math**

so sub l= (23/w) into l+w = 32 23/w + w = 32 23 + w^2 = 32w w^2 - 32w + 23 = 0 solve for w, then plug into l=23/w I got w = .7357 l = 31.2643 check: .7357x31.2643 = 23.001 .7357 + 31.2643 = 32
*Saturday, October 24, 2009 at 11:28pm by Reiny*

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