Sunday

April 20, 2014

April 20, 2014

Number of results: 222,721

**math 115**

h(x) = 19-x when x is 5 and when x is -5 I need to write and expression so is this the right way? h(x)=19 h(5)x19 h(5)x 19=-5
*Thursday, September 16, 2010 at 9:31pm by Sydney*

**algebra**

5(11 + 22 - 10) – 19 (5 * 23) - 19 = 115 - 19 = 96
*Monday, February 7, 2011 at 10:45pm by Ms. Sue*

**physics**

Wt. = m*g = m*9.8 = Wt. in Newtons. Fp = 9.8m*sin(0) = 0 = Force parallel to the field. Fv=9.8m*cos(0) - 750*sin47 = 9.8m-548.5= Force perpendicular to the field. Fk = u*Fv=0.21(9.8m-548.5)=2.06m-115.19 = Force of kinetic energy. 750*cos47-Fp-Fk = m*a 511.5-0-(2.06m-115.19) = ...
*Thursday, February 28, 2013 at 9:30am by Henry*

**math 115**

h(5)=19-5 h(-5)=19+5
*Thursday, September 16, 2010 at 9:31pm by rachel*

**Math 115 # 19**

Yes..I will do it again
*Friday, January 9, 2009 at 5:41pm by Deb*

**Math 115**

19.5 t (1000 kg/t)= 19,500 kg
*Sunday, November 30, 2008 at 10:29am by Damon*

**Geometry**

if the pen has dimensions x by y, with x along the barn, then x+2y = 115 the area a is thus a = xy = (115-2y)y this is a parabola, with maximum at y=115/4 so, x = 115/2 so, a pen 115/4 by 115/2 gives the maximum area
*Tuesday, October 30, 2012 at 9:35pm by Steve*

**Math 115 # 19**

Is there a question here that I've missed?
*Friday, January 9, 2009 at 5:41pm by Ms. Sue*

**Math 115 25**

It could also be (-2/25) -30 = - 32 2/5 or 17 - (19/25) -30 = -13 19/25 or a lot of other answers. What you calculated was (17-19)÷ [(5)(5) -30]= -0.4 If you don't understand the importance of when and how to use parentheses, you are going to have a lot of difficulty with algebra
*Saturday, January 10, 2009 at 1:03pm by drwls*

**Math 115 25**

Perform the indicated operation 17-19 ÷ (5)(5) -30
*Saturday, January 10, 2009 at 1:03pm by Deb*

**chem**

Since the density is 1.00 g/mL, that means we can use 1.0 mL = 1.0 g, I remember that 1 mg/L = 1 ppm So 0.115 g/4.55 L = 0.02527 g/L or that x 1000 = 25.27 mg/L or 25.3 ppm. Your way: 0.115 g/4550 g + (.115 x 10^-6) = 0.115 g/4550 g + (negligible) =. 2.527 x 10^-5 g/1.0 g. ...
*Friday, May 9, 2008 at 4:16pm by DrBob222*

**Math**

y+19=9 It means that an unknown number added to 19 is equal to 9. y + 19 = 9 First we need to subtract 19 from both sides of the equation. y + 19 - 19 = 9 - 19 y = -10 The proof: 19 - 10 = 9
*Wednesday, September 21, 2011 at 9:08pm by Ms. Sue*

**Math**

P=2x+2y(perimeter) JUST TO ADD TO THE ABOVE SOLUTION. 230=2x+2y 2y=230-2x y=115-x A=xy(Area) A=x[115-x] A=115x-x^2 dA/dX=115-2X=0(at maximum) 115=2x x=57.5(CRITICAL VALUE)
*Saturday, February 20, 2010 at 6:53pm by Innocent Mutanga*

**Math**

115 -6-9 = 100, so we need to make 115 with the digits 1,2,3,4,5,7,8 115=5*23, so 5*(2+3+4+7+8-1)-6-9 = 100
*Friday, April 5, 2013 at 10:50pm by Anonymous*

**physics**

115.19
*Wednesday, March 7, 2012 at 9:19pm by Kelly*

**geometry help**

115=x(4+19)/2 115/11.5= 11.5x/11.5 x=10 Height= 10
*Wednesday, June 1, 2011 at 7:17pm by Maci*

**geometry help**

115=height*(4+19)/2
*Wednesday, June 1, 2011 at 7:17pm by Mgraph*

**Math 115 CAP**

Describe some coping mechanisms developed in MAT 115 that can be used for another math course.
*Monday, January 12, 2009 at 1:09pm by Deb*

**Basic Physics**

V=10 * 5 * 2.3 = 115 m^3=Vol. of water. Mass=V*Dw=115m^3 + 1000kg/m^3=115,000kg F = 115,000kg*9.8N/kg = 1,127,000 N.
*Tuesday, December 18, 2012 at 1:54pm by Henry*

**math**

if the pipe is full, it contains pi * 2^2 * 1/4 * 5280 * 12 = 199051 in^3 = 115.19 ft^3 So, we want twice that, or 230.38 * 7.481 = 723.5 gal
*Monday, February 11, 2013 at 12:54pm by Steve*

**Math 115 CAP**

What coping mechanisms did YOU learn in MAT 115?
*Monday, January 12, 2009 at 1:09pm by Ms. Sue*

**math 115 wk.7**

MAT 115 Week 7 Checkpoint Assignment Due Day 5
*Tuesday, June 23, 2009 at 5:39am by Anonymous*

**math**

I assume a=$16,000, and r=11.5% compounded yearly. So a=p(1+r)^n =p(1.115)^5 p=16000/(1.115^5) =$9284.22
*Sunday, August 14, 2011 at 4:53pm by MathMate*

**math**

u said there are 115 bikes...but its 115 wheels
*Wednesday, October 20, 2010 at 4:05pm by Katherine*

**AP calculus**

1. h = 115 tan51° = 142 m with error, 139.51 <= h <= 144.57 2. sorry, you'll have to do that yourself! 3. h = 115 tanθ dh = 115 sec^2 θ dθ 5 = 115 * 2.525 dθ dθ = .01722 = 0.986° just as a check, our error of ±0.5° indicates a height error of dh...
*Thursday, December 27, 2012 at 11:28am by Steve*

**statistics**

Yes, it would be unusal for the mean of a sample of 3 to be 115 or more because there is only a 4.18% chance for this to happen. P(X >= 115) = P(X >= (115 - 100) / sqrt(15^2 / 3)) = P(X >= 1.732050808) = 0.0418
*Monday, September 26, 2011 at 10:30am by Kimberly Rubino*

**Statistics**

A. The standard error of the mean = 20/sqrt([100]) = 2 answer 2 B. z =(200-115)/(20/sqrt((100)) z = 42.5 answer 0 C. z = (120-115)/2 = 2.5 answer 0. 9938 D. z = (111-115) /2 z = -2 z = (119-115)/2 z = 2 .9772-.0228 = 0.9544 Answer 0.9544
*Sunday, October 27, 2013 at 9:30pm by Kuai*

**Math 115 18**

Find the best buy for tomato juice: (a) 8 oz. for $0.37 (b) 1 pt 10 oz for $1.19 (c) 1 qt 14 oz for $1.99
*Sunday, January 18, 2009 at 11:34pm by Deb*

**complex number ~**

thanks BOB =) *HUGS* 115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* or is it (-75*) 115 cis (45 + 120 + 120) = 285*?? or (-195*)?? It's really Matthew!I found out what it is but I will help you when you help me plz!!! Exactly right...
*Sunday, November 5, 2006 at 7:14pm by kevin*

**Math**

12^19 in prime factored form is 1^18 * 2^19 * 2^19 * 3^19 because 12 = 1x2x2x3 = 1^19 * 2 * 4 * 2^16 * 3 * 3^18 = 1x2x3x4 = 4! since there is no factor of 5, that is as high as we can go so N = 4 (4! divides into 12^19)
*Monday, March 23, 2009 at 6:26pm by Reiny*

**math**

varies inversely means there is a constant k such that ir = k we are told that i=2 when r=115: 2*115 = 230 = k so, when i=5, 5r = 230 r = 46 ohms
*Wednesday, November 7, 2012 at 11:51pm by Steve*

**math **

You must earn $115 $292 +193 + 115=600 $600 divided by 3= 200
*Thursday, October 1, 2009 at 11:10pm by Lauren*

**Mat 116**

The last lines... 7(-5)+9(6)=19 -35+54=19 19=19 You made two math errors on yours
*Sunday, April 11, 2010 at 4:52pm by bobpursley*

**PHYSICS**

Ignoring gravity v^2/R = centripetal acceleration So force toward center = mv^2/R 115 N = m 14^2/R so m/R = 115/14^2 F = m 25^2/R = (115/14^2) (25^2)
*Monday, January 18, 2010 at 1:39pm by Damon*

**Statistics**

mean = $115 Sd = $25 n = 15 1-a = .92 a = 0.08 Za/2 = z.04 = 1.75 115 -+ 1.75 * 25/sqrt15)) 115-+ 11.296 (103.704, 126.296)
*Friday, November 29, 2013 at 8:00pm by Kuai *

**Chemistry**

No, the only difference is that HBr is a strong acid that ionizes 100% versus the other problem where both were weak acids with a Ka value for each. HBr = H^+ + Br^- and (H^+) = 0.115 You probably need to see if the HCOOH contributes anything to add. ..........HCOOH ==> H...
*Monday, February 27, 2012 at 12:01am by DrBob222*

**math 121 **

Is 19.x supposed to be 19 x? If you meant to write 19x + 19*6, that can be written 19(x + 6) The * sign indicates multiplication (here,anyway). Do not use a decimal point; it is too confusing.
*Tuesday, January 25, 2011 at 2:25pm by drwls*

**math**

115-100+3*5= 115-100+3*5...Use BEDMAS (Bracket, Exponent, Division/Multiplication, Addition/Subtraction). So you would first do 3*5 which is 15. So you'd have: 115-100+15 And then from there solve to get 30. It's PEMDAS Raj!! P - PARENTHESSE E - Exponent M - Multiplacation D...
*Wednesday, February 21, 2007 at 11:03pm by asafa*

**math**

sister has x Ariel has x+19 Victor has 3(x+19) x + x+19 + 3(x+19) = 5x + 76
*Monday, September 10, 2012 at 11:00pm by Steve*

**Math:A.P.**

for AP: term1 = a term3 = a+2d term9 = a+8d but term7 = 19 = a+6d so a = 19-6d so re-defining: term1 = 19-6d term3 = 19-6d+2d = 19-4d term9 = 19-6d + 8d = 19+2d these 3 are supposed to be a GP, so (19-4d)/(19-6d)= (19+2d)/(19-4d) 361 - 152d + 16d^2 = 361 -76d - 12d^2 28d^2 - ...
*Thursday, February 6, 2014 at 9:26am by Reiny*

**complex numbers**

115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* 115 cis (45 + 120 + 120) = 285*?? WHat is cis? cos + isin OH LOL!!!Wish I could help!LOL!But...PLease help me!!:(
*Sunday, November 5, 2006 at 5:50pm by kevin*

**math 115**

complete the statement 15g= what kg? my answer is 528kg, is this correct? 2. sabrina has the following math quiz scores; 19, 24, 25, 17, 13, & 18. find her mean score to the nearest tenth if necessary, my answer is 17 is that correct?
*Saturday, September 5, 2009 at 2:54pm by Lea*

**Physics**

h = Vo*t + 0.5g*t^2 = 115.7 m Vo*5.6 - 4.9*5.6^2 = 115.7 Vo*5.6 = 115.7+153.7 = 269.4 Vo = 48.1 m/s.
*Sunday, February 9, 2014 at 4:41pm by Henry *

**Math**

do it the same way: 44 3/8 = 355/8 = 1065/24 9 7/12 = 115/12 = 230/24 subtract to get 835/24 = 34 19/24
*Wednesday, June 27, 2012 at 9:31am by Steve*

**math,help**

1 2 3 115 2 1 1 200 1 0 1 50 1 1 4 0 is the first augmentation 1 2 1 1 2 1 0 1 3 1 1 4 115 200 50 0 is the second augmentation. z = -w = -y1-y2-4y3 y1+2y2+3y3 >= 115 2y1 +y2+ y3 <= 200 y1 + y3 >=50 y1 y2 y3 s1 s2 s3 z 1 2 3 1 0 0 0 115 2 1 1 0 -1 0 0 200 1 0 1 0 0 1 0...
*Wednesday, June 13, 2007 at 12:12pm by Tiffany*

**math**

A little thought should make it clear that since x is farther from 11 than from 19, 1. x is between 11 and 19 2. x > 19 If 11<x<19, x-11 = 3(19-x) x-11 = 57-3x 4x = 68 x = 17 If x > 19, x-11 = 3(x-19) x-11 = 3x-57 2x = 46 x = 23 check: 17 is 6 from 11 and 2 from 19...
*Thursday, January 24, 2013 at 10:36pm by Steve*

**Pre-Calc**

=4^6(cos(115*6)+isin(115*6))
*Monday, July 25, 2011 at 2:37pm by Anonymous*

**Math, Algebra.**

2. Sylvia has 6 1/2 boxes of chocolate to share at a family picnic. If she gives each person 1/3 of a box, how many people can receive chocolate? 13, 17, 19, or 21? I believe that the answer is 19. Take 6 1/2, divided by 1/3, and get 19 1/2. Since 19 is the closest answer, the...
*Tuesday, October 9, 2012 at 9:29pm by -3-*

**math please**

If g ( c ) = 19 - c 2 mean g ( c ) = 19 - c ^ 2 then g ( c ) = 19 - 4 ^ 2 g ( c ) = 19 - 16 g ( c ) = 3
*Thursday, March 1, 2012 at 12:53am by Bosnian*

**math**

3/19-1/19+7/19+x/19=1 x=19-3+1+7 x=16+8 x=24
*Thursday, May 5, 2011 at 1:02pm by Anthony*

**math**

a n = - 2 ( n - 3 ) n = 19 a 19 = - 2 ( 19 - 3 ) a 19 = - 2 * 16 a 19 = - 32
*Thursday, March 1, 2012 at 11:37pm by Bosnian*

**Geometry**

Well I determined [B) 115 trucks] to be the answer because: The Volume of A spherical storage is 57905.83579. The Volume of a single truck with a cylindrical tank is 502.65482. so 57905.83579/502.65482=115.200001 round up and it's 115
*Sunday, June 13, 2010 at 4:42pm by Ariel*

**math**

average cost = totalcost/number of units a(x) = C(x)/x = 0.2(0.01x + 133/x) minimum avg cost is where a'(x) = 0 a'(x) = .02(.01 - 133/x^2) x = 10√133 = 115.3, so 115
*Wednesday, November 14, 2012 at 4:09pm by Steve*

**math 115**

1. perform the indicated addition. 2,580+675+36= 3,291 is this correct? 2. perform the indicated subtraction. 44,377-25,058=19,319 is this correct? 3.312x371= 3,432 is this correct?
*Sunday, September 6, 2009 at 11:55am by Lea*

**Basic Math 115**

The United States emitted 19.5 millions of nitrogen oxides (no) into the atmosphere in 1987. One metric ton equals 1,000 kg. How many kilograms of No were emitted to the atmoshere in the United Stated during 1987?
*Saturday, August 28, 2010 at 9:28am by Sharon*

**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 - check answer**

Given s = 10 - 10t2 + 45t3, determine the velocity when t = 1 s. velocity in m/s = My Answer S'= 0-20t + 135t^2 S'(1) = -20+135 = 115 velocity in m/s = 115 Can you please confirm this is correct. Thanks!
*Tuesday, January 29, 2013 at 5:50pm by Brownie*

**Algebra**

first if you have .3 x in both, why multiply by 10? .3 x - .2 y = 4 .3 x + .3 y = 5/19 subtract second from first 0 x - .5 y = 71/19 y = - 142/19 so .3 x - .2 (-142/19) = 40 3 x = -2(142/19) + 760/19 3 x = 476/19 x = 476/57
*Friday, March 6, 2009 at 4:53pm by Damon*

**math**

ratio of 8/9,quotient of 8/19,percent of 8/19. Ratio 8/9 is 8 : 9 Quotient 8/19 = 0.42105 Percent 8/19 = 42.11% In case ratio should be 8/19, 8 : 19
*Wednesday, February 9, 2011 at 2:39am by helper*

**Number Theory.,Math**

clearly (1,1) will work I then made up and ran a silly little computer program where I let a go from 1 to 1000 and b = 1 to 1000 and tested each case (so my program tested 1 million cases) it found the following ordered pairs 1 3 3 1 5 19 7 9 9 7 19 5 testing (19,5) if a = 19 ...
*Thursday, October 10, 2013 at 11:07pm by Reiny*

**geometry**

I found out the first part of which is x for the figure which was 115 degrees.They do give you the other measures of the angles which are 115,155,155,155.135,135,115.The second part of the problem say yo find the sum of the measures of the exterior angles,one at each vertex,...
*Saturday, July 23, 2011 at 4:59pm by Lauren*

**math**

(3 +or- sq.root 361)/2 (3 +or- 19)/2 From here you get the 2 following equations: (3+19)/2 = 11 (3-19)/2 = -8
*Tuesday, March 12, 2013 at 3:56pm by Lena*

**Math**

y+19=9 That means some number added to 19 equals 9. So we subtract 19 from 9 which gives us -10.
*Wednesday, September 21, 2011 at 9:08pm by Abdul*

**Math (Continued)**

x = -115 ____ -2 Solve this to get: 57.5 So, your greatest value for x will be 57.5. Plug this in to your perimeter equation to determine the value of y. Remember: P(x) = 230 = 2x + 2y 230 = 2(57.5) + 2y 230 = 115 + 2y -115 -115 ___________________ 115 = 2y ___ ___ 2 2 57.5 = ...
*Saturday, February 20, 2010 at 6:53pm by Lela*

**math **

2,000 * 0.115 = 230 230/2 = 115 2,000 + 115 = ?
*Thursday, January 28, 2010 at 10:08am by Ms. Sue*

**math**

I need help solve the equation by fractions 8/(21-y) = 12/(y+19) I think the answer is y = 5, i just need to know how to do work out. i done some solution like this first multiply by(21-y)(y+19)(assuming that y = 21 and y = 19: (21-y)(y+19)8/(21-y) = (21-y)(y+19)12/(y+19) then...
*Thursday, February 23, 2012 at 8:54am by Anonymous*

**math**

10925 = 95 * 115 (x-115)(x+95)
*Monday, November 28, 2011 at 5:55pm by Steve*

**math**

n(1/2 + 1/3 + 1/4 + 2/7) = 575 115/84 n = 575 = 5*115 ...
*Monday, February 4, 2013 at 12:56am by Steve*

**geometry help**

a trapezoid has base lengths of 4 and 19 feet, with an area of 115 square feet. what is the height of the trapezoid?
*Wednesday, June 1, 2011 at 7:17pm by karl*

**math**

6 3 / 5 = 6 * 30 / 30 + 3 * 6 / 30 = 180 / 30 + 18 / 30 = 198 / 30 3 5 / 6 = 3 * 30 / 30 + 5 * 5 / 30 = 90 /30 + 25 / 30 = 115 / 30 6 3 / 5 + x = 3 5 / 6 198 / 30 + x = 115 / 30 x = 115 / 30 - 198 / 30 x = -83 / 30
*Wednesday, November 9, 2011 at 6:26am by Anonymous*

**8th grade math URGENT**

1.25 / 124 = 0.0100806 miles/second 1.1875 / 115 = 0.010326 miles per second The first is faster. 1.6/5 = $0.32 per minute 19.50/60 = 0.325 per minute
*Sunday, September 8, 2013 at 3:47pm by Ms. Sue*

**math**

Please explain how to get the answer. At the animal shelter, 1/3 of the animals are dogs, 2/12 are cats, and 19 are other animals. How many animals are at the shelter? I said 1/3x + 2/12x + 19 = 4/12x + 2/12x = 19= 6/12x = 19 1/2x = 19 x =
*Thursday, May 13, 2010 at 10:37pm by Sonya*

**physics**

Work = Force x Distance 115 x 15 = 1,725 20 x 10 = 200 Obviously pushing 115 N over 15 m
*Thursday, March 4, 2010 at 6:23pm by Casey*

**Algebra**

5(14x/5) + 5(7x)= 5(23) 14x + 35x = 115 the 5's cancel 49x = 115 divide both sides by 49 to get x on its own x = 2.35
*Friday, December 14, 2012 at 11:31am by amy *

**math **

Did the question indicate that the dimensions are in integral centimetres? If so, you only have to figure out the factors of 570, which are 2,3,5,19 Out of these, take any 2 for dimensions, and take the product of the 2 remaining factors as the third dimension. I tried 5,6(=2*...
*Sunday, May 15, 2011 at 3:37pm by MathMate*

**Math 115**

The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the atmosphere in the United States during 1987?
*Sunday, November 30, 2008 at 10:29am by Debbie*

**survey math 140**

Number of ways to select 5 of 19 is C(19,5) = 19!/(5!14!) = 11628 most calculators have that function built-in look for something like nCr
*Saturday, March 29, 2014 at 3:37pm by Reiny*

**Trigonometry**

sinB/b = sinA/a, sinB/19.6 = sin30/17.4, Multiply both sides by 19.6: sinB = 19.6*sin30/17.4 = 0.5632, B = 34.3Deg. C = 180 - (A+B), C = 180 - (30+34.3) = 115.7deg. c/sinC = 17.4/sinA, c/sin115.7 = 17.4/sin30, Multiply both sides by sin115.7: c = 17.4*sin115.7/sin30 = 31.4.
*Wednesday, April 27, 2011 at 6:19pm by Henry*

**math**

Ahhh, great question!!!! We know two of the prices, the high and the low, which is a total of $43. So the average price of the remaining 19 books must be > $18 and < $25 (375-43)/19 = 17.5 no good (530-43)/19 = 25.6 no good (175-43)/19 = 6.9 no good (445-43)/19 = 21.1 ...
*Monday, February 18, 2008 at 9:33pm by Reiny*

**college math**

Now here the order of things in the group does not matter so we want the number of combinations of 7 out of 19 C(n,r)= n!/[r!(n-r)!] = 19!/[7!(12!)] =19*18*17*16*15*14*13/(7*6*5*4*3*2) =19*3*17*4*1*13/1 =50,388 check my arithmetic for sure if you have a calculator that does ...
*Wednesday, December 12, 2007 at 9:24pm by Damon*

**physics**

conservation of momentum applies Momentum tackler= momentumbothafter 115*4.5=(115+M)2.6
*Monday, March 12, 2012 at 10:23am by bobpursley*

**Math**

Compute it mod 13 and mod 19 first. 19^12 = 1 Mod 13 by Fermat's little theorem. And 13^18 = 1 Mod 19 by Fermat's little theorem. So, we can write the answer as: 1*19 (19^(-1) Mod 13) + 1*13 (13^(-1) Mod 19) Mod 19 the first term is zero, the second is 1, while Mod 13 the last...
*Thursday, August 2, 2012 at 5:37pm by Count Iblis*

**math help!**

bernardo folds the 2 top corners of a rectanglular piece of paper to form 2 conguent triangles and an isosceles trapezoid. The triangles each have an angle that measures 65. what are the measures of the 2 top angles in the trapezoid? a. 25 and 25 because 65 + 25=90 b. 115 and ...
*Tuesday, December 7, 2010 at 9:43pm by DeNawQisha*

**math 115**

What units in the metric system would you use to measure each of the following quantities?= The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the ...
*Wednesday, September 30, 2009 at 9:27pm by amber*

**math 115**

What units in the metric system would you use to measure each of the following quantities?= The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the ...
*Wednesday, September 30, 2009 at 9:56pm by amber*

**CIS 115**

CIS 115 week 7 exercise: Determine output. I need help with this week's exercise...DeVry CIS 115 week 7...please help! Using the questions on page 2, determine the output for each question. If input data is provided, be sure to use it with the each question.
*Sunday, February 24, 2013 at 6:32pm by dddiii*

**chemistry**

How many acetylene molecules do you need for each O2 molecule? 2C2H2 + 5O2 --> 4CO2 + 2H2O 5 O2 molecules for every 2 2C2H2 molecules larger tank has O2 let's say it has 5x moles of O2 p v = 5x r t 115 * 7 = 5 x r t x r t = 115 * 7/(5 ) now the other tank has 2x moles of ...
*Wednesday, July 7, 2010 at 5:33pm by Damon*

**trig**

Determine in which quadrant you are in, then use the CAST rule e.g. sin(-245°) = sin( 115°) , (going 115 counterclockwise is the same as going 245° clockwise ) 115° is in quad II in quad II , sine is positive, so sin(-245°) is positive you can always check with your calculator...
*Thursday, January 26, 2012 at 11:14pm by Reiny*

**pre-calculas**

well, this one is different anyway -2 x^2 + 6 x + 5 = y find zeros x^2 - 3 y - 2.5 - -y/2 x^2 - 3 y = -y/2 + 5/2 x^2 -3 y + 9/4 = -2 y/4 + 10 y/4 + 9/4 (x- 3/2)^2 = -1/2 (y -19/2) when y = 0 (x-3/2)^2 = 19/4 so x = 3/2 +/- 1/2 sqrt 19 check with quad eqn x = [ -6 +/- sqrt (36...
*Sunday, February 16, 2014 at 10:34am by Damon*

**math**

g(c)= 19 x c^2 ? is c squared? if not g(4)= 19 x (4x2) g(4)= 19 x 8 g(4)= 152 if C is squared, i am sure you can now derive the answer with this example. simply plug in the input (4) for c
*Thursday, March 1, 2012 at 12:46am by Rose Bud*

**Math**

For two consecutive integers, the sum of the smaller and twice the larger is 38. What are the integers? Plz explain. Thanks 2(a+b)=38 Therefore: a+b+(2(a+b)=38 a+b+2a+2b=38 3a+3b=38 3(a+b)=38 I got as far a here. I dont know if this helps. My last stop may be worng. This might...
*Wednesday, November 29, 2006 at 6:11pm by Jamie*

**math**

) A wierd number is a number that is the product of two consecutive primes, such as 7x11=77 . What is the least common multiple of the 5 smallest wierd number 7) According to an ancient belief, when a friend visits a sick person, 1/70 of his sickness is taken away. What is the...
*Sunday, February 25, 2007 at 6:12pm by brenton atcheson*

**math exponents**

i need to write each expression as a product of the same factor: * = multiply can you check these please a^2 i got a*a 19^3 i got 19*19*19 -6^2 i got 6*6*-1 -x^3 i got x*x*x*-1 (-5)^4 i got (-5)*(-5)*(-5)*(-5)*(-5) 4^3 i got 4*4*4 -(10)^2 im not sure how to do?? 20^1 i got ...
*Saturday, September 8, 2012 at 1:08pm by marko *

**algebra**

aside from the ambiguity caused by a paucity of parentheses, #1 looks ok #2 (-3)^2 = 9, not -9 but that's ok, since you dropped it in the next step anyway.Other than that, it's virtually incomprehnsible. Add some parens so it's clear what is wanted. I can guarantee that 115/3-...
*Monday, October 3, 2011 at 9:29am by Steve*

**trig**

H = Hight of lighthouse L = Distance between a ship and a lighthouse tan( theta ) = H / L If 19^ mean 19° then: tan( theta ) = H / L tan( 19° ) = 120 / L L * tan( 19° ) = 120 Divide both sides with tan( 19° ) L = 120 / tan ( 19° ) L = 120 / 0.34433 L = 348.5 ft If 19^ mean 19...
*Saturday, October 1, 2011 at 11:19am by Anonymous*

**MATH**

i need to write each expression as a product of the same factor: * = multiply can you check these please a^2 i got a*a 19^3 i got 19*19*19 -6^2 i got 6*6*-1 -x^3 i got x*x*x*-1 (-5)^4 i got (-5)*(-5)*(-5)*(-5)*(-5) 4^3 i got 4*4*4 -(10)^2 im not sure how to do?? 20^1 i got ...
*Saturday, September 8, 2012 at 2:42pm by marko *

**math**

(3*((-5)+7))+((19-7/4) there are mis-matched brackets at the right of the expression, ignoring this type we get = 3(2) + 19 - 1.75 = 23.25 if you want the answer to be 9, you would have brackets in this way: (3*((-5)+7))+((19-7)/4) = 3(2) + 12/4 = 6 + 3 = 9
*Monday, January 20, 2014 at 10:00pm by Reiny*

**Mathematic**

frequency = k √t/L given: 325 = k√115/1.23 k = 1.23(325)/√115 for 2nd case frequency = (1.23(325)/√115) √92/.95 = ..... you do the button-pushing
*Tuesday, November 22, 2011 at 10:35pm by Reiny*

**math**

i assume it is read like this: [27/(5+4)] * 19 which is (27/9) * 19 <=> 3*19 = 57
*Wednesday, October 21, 2009 at 4:25pm by Gemini*

**math**

Richard now --- x Rich in 7 yrs -- x+7 Rich 19 yers ago -- x-19 x+7 = 2(x-19) solve for x
*Saturday, October 24, 2009 at 11:19pm by Reiny*

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