Thursday
August 28, 2014

Posts by Helper

Total # Posts: 1,700

Math
1. histogram with intervals of 5 2. histogram with intervals of 3 3. line plot 4. line graph these are the multiple choice answers
May 30, 2014

Math
Which display is best to determine the relationship between the number of hours worked and the amount of money paid?
May 30, 2014

Science
3 has to be C. if the sea urchins are not being hunted then they obviiously increase and so that means the more sea urchins there are than the less kelp there is.. DUHHH MS. SUE! You may not be as smart as everyone thinks.
May 29, 2014

Science
No you tard.. The answer is c. it uses a renewable energy source. just look up biomass duuhhh
May 29, 2014

Science Help????????????????
i think they all seem right accept 3
April 8, 2014

Hiram Elementary School
I don't believe this is a complete question
February 25, 2014

Spanish 2 Help
lee no leas
February 12, 2014

Spanish 2
Lee el libro! Leelo! (accent on first e) No leas el libro No lo leas limpia la casa limpiala (accent on first I)
February 11, 2014

statistic
3.80127(1.03605)^x
December 15, 2013

assistent teacher
I would say Powerpoint, Openoffices, and some other softwares just type in " Keynote " and download if you have a Mac. Also try Google Docs Presentation. And Sliderocket ( you can also add pics with it! ) Try 280 Slides or Prezi!
May 26, 2013

Quantum Physics
for 4 some one already gave you so you have: 4a: 1/sqrt(5) 4b 2/5 4c 1/2 4d 0
April 6, 2013

Quantum Physics
1/sqrt(2) -1/sqrt(2) 1/sqrt(2) 1/sqrt(2)
March 15, 2013

Physics
0.5, 0, 0, 0.5, 0, 0.5, 0.5, 0
March 10, 2013

physics
0.5, 0, 0, 0.5, 0, 0.5, 0.5, 0
March 6, 2013

PHYSICS!!!
0.0887 is the answer....correct on and say thanks.....
February 27, 2013

Languege arts
A B B C B A C A FALSE
February 7, 2013

math
a. early- .1 on time- .6 late- .18 cancelled- .12 b. mutually exclusive c. .7
January 15, 2013

chemistryy
5.043661*10^15
January 12, 2013

chemistry
4.7E-15
January 11, 2013

Chemistry
could you explain me this one A photon interacts with a ground state electron in a hydrogen atom and is absorbed... And I will explain you the formula
January 11, 2013

PreCalculus - Find Inverse
replace f(x) with x and x^3 with y^3 in the equation and then solve for y ... Hope that helps !!
November 27, 2012

physics help needed very urgent !!!
The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 55 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a ...
October 26, 2012

Science
You have a stock solution of 3.5M glucose. You need a working solution of 0.5M glucose in a volume of 400ml. Explain how you make the solution. Also what is the concentration of the dilution solution?
October 15, 2012

English
Lacey was right!(:
May 13, 2012

child development
3 is A 5 is C 9 is A 10 is B 11 is C Those are right because I did this test already. :) The ones I didn't mention already have the right answer.
April 24, 2012

math
I dunno, but maybe u can help me!
March 1, 2012

Science
You are correct,the answer is B. Good job :)
February 1, 2012

trig
58!! I'm workin on it too! LOL! See you in class!
December 13, 2011

You have to get involved!ï¿½ From the first day of school, freshman year of high school, those were the words that constantly fell from my momï¿½s mouth. I would not go a week without hearing those five words. At that time I did not ...
October 15, 2011

Physics
it is based off the equation: displacement = (initial velocity)*(change in time) + 1/2(acceleration)*(change in time squared) since that equation is linear, the equation recommended for this problem is: "angle" = 0 + 1/2(acceleration)*(change in time squared) that is...
October 7, 2011

algebra
Say, cost per day = D Say, cost per km = k 3D + 150k = 180 2D + 400k = 180 Multiply the first equation by 2 and the second by 3: 6D + 300k = 360 6D + 1200k = 540 Subtract the first equation from the second: 900k = 180 Divide both sides by 900: k = 0.2 2D + 400k = 180 2D + 400(...
September 29, 2011

Algebra
There are no like terms. It cannot be simplified.
September 29, 2011

algebra
Say Aarons age = 2A years Therefore, Half of Aarons age = A years Therefore, Tanya's age = A+10 2A + A+10 = 55 3A + 10 = 55 3A + 10 -10 = 55 - 10 3A = 45 A = 15. Therefore, Tanya is 15 + 10 = 25 years old. (Aaron is 2 x 15 = 30 years old)
September 29, 2011

arithmetic
ANSWER: 65 Substitute 30 into n: 7 + (30 - 1) x 2 7 + (29) x 2 7 + 58 = 65
June 29, 2011

Maths C
To solution is in the idea that Simpson's rule requires an even number of intervals and uses parabola capped trapezoids created by three points. Weddle's rule works accurately for more than 7 and odd numbers of intervals. Good luck in indentifying the derivation of the...
June 23, 2011

english
He had planned to take the last flight out to Chicago. However, the flight was cancelled due to bad weather.
June 2, 2011

american history
There are no statements listed :)
June 2, 2011

life orientation
Can you please post lines 10-15 or the passage you are implying to :)
June 2, 2011

Title for essay
I agree with Ms.Sue second title!
May 19, 2011

math
there are 3 ft in 1yd. 555ft/3ft=X yd/1yd 555ft=3xft divide =185 yards
May 8, 2011

geometry
Surface area of what? Cylinder, cone, sphere or ?
April 23, 2011

Cultural Diversity
YOU are not a nice person. Ms. Sue is very helpful and one of the nicest tutors here. I hope that the administrator of this site blocks you from ever posting here again.
April 22, 2011

Social Studies
April 21, 2011

geometry
Your question, I assume, is to find the length and width of the rectangle? The diagonal creates 2 right triangles. L = length L - 4 = width By the Pythagorean theorem, d^2 = L^2 + (L - 4)^2 20^2 = L^2 + (L - 4)^2 Solve for L, the length width = L - 4
March 15, 2011

algebra 1
March 15, 2011

Logarithms
Now, I feel stupid. I guess I should not work so late at night. I tried all these rules when all I needed to do was simplify log2√2 using the basic definition/relationship !! Thanks again. I don't remember learning logs some 40 years ago in HS and teaching myself. ...
March 9, 2011

Logarithms
Thanks so much Reiny.
March 9, 2011

Logarithms
I'm working on logarithmic equations and I'm stuck on how my book arrives at the next step. First, they use the change of base formula on, log(sqrt(2))(x^3 - 2) (sqrt(2)) is the base,changing to base 2 log(sqrt(2))(x^3 - 2)= log2(x^3 - 2)/(log2(sqrt(2)) I understand ...
March 9, 2011

Math 126
Arithmetic, the common difference is 11. 15 - 4 = 11 26 - 15 = 11 37 - 26 = 11 48 - 37 = 11 59 - 48 = 11
March 7, 2011

algebra
How can we answer without looking at the four choices of graphs? See the following in regards to graphing quadratic functions. http://www.purplemath.com/modules/grphquad2.htm
March 4, 2011

word problem
If this is your equation, M = −0.001t^3 + 0.1t^2 t = 14 min Substitute 14 for t and solve M = −0.001t^3 + 0.1t^2 M = −0.001(14)^3 + 0.1(14)^2 Now solve for M = number of words in 14 min
March 4, 2011

Math
This assumes that sides PQ and ST are corresponding sides. You do not state the relation of the sides in your problem. Create a proportion matching the corresponding sides and perimeters. PQ/ST = Perimeter PQR/Perimeter STU 18/6 = 78/x 18x = 468 x = 26 = Perimeter STU
March 4, 2011

math
Multiply the area of the rectangle by the square of the scale factor to get the area of reduced rectangle. Reduced area = 720 * (1/6)^2 Reduced area = 720 * (1/36) Reduced area = 720/6 Reduced area = ? sq in.
March 4, 2011

math
Master is incorrect f(x) = 7 ln x f' = 7/x f'(4) = 7/4
March 3, 2011

coordinate geometry
y - 18x + 18 = 4 Slope-intercept form of the equation is, y = mx + b m is the slope b is the y-intercept You need to put tour equation in the slope-intercept form by solving for y. Move everything to the right side of the equal sign. y - 18x + 18 = 4 y = 4 + 18x - 18 y = 18x...
March 3, 2011

geometry
Not sure I understand your question but I'll give it a try. AB = 4, 2 AB = 2 * 4 = 8 CD = 7 EF = 1 2AB - 1CD = EF 8 - 7 = 1
March 3, 2011

Algebra 2 word problem
Correct :)
March 2, 2011

math
You're welcome :), we all make mistakes.
March 2, 2011

math
Miss Sue, I think you missed the "0" before 45 (0.045 not 0.45) 0.045 = 45/1000 = 9/200 = 0.045 So, the fraction is, 45/1000 = 9/200 (reduced to lowest terms) 0.045 * 100 = 4.5% So, the percent is, 4.5%
March 2, 2011

Measurment
Are 22, 16, and 28 the sides of this triangle? What is "a nine in the middle" mean? What does this "9" represent? Your question cannot be answered as worded. What exactly does your problem say or state to do?
March 1, 2011

denominators
You need to use parenthesis. If this is your problem v/(v+5)+v/3 = -4/(v+5) Multiply both sides by 3(v+5) 3v + v(v + 5) = -12 3v + v^2 + 5v = 12 v^2 + 8v + 12 = 0 (v + 2)(v + 6) v = -6 or v = -2 Make sure you check the solutions in the original equation. I have NOT checked the...
March 1, 2011

Math
W = width W + 42 = length P = 2W + 2L 228 = 2(W) + 2(W + 42) Solve for W W + 42 = Length
March 1, 2011

Math
x = hrs farming y = hrs babysitting 10x + 5y >= 150 x + y <= 25 Solve the system
March 1, 2011

algebra
Parallel lines have equal slopes. Equations in the form y = mx + b m = slope, b = y-intercept Your equation, y = 1/2 x + 2.3 Do you know the slope now?
March 1, 2011

math
Circumference, C = 2 pi r or, C = pi d C = 2 pi r C = 2(3.24)(100) C = 628 feet for one lap 5280 * 2 miles = 10,560 feet 10560/628 = ? = laps in 2 mile
March 1, 2011

Math
tan -120 = (sqrt(3)) = 1.73205 coterminal with 240 deg in QIII so positive reference angle is 60 Where did you get - 0.71312301 Are you using a cal. set to the wrong setting, rads vs degrees?
March 1, 2011

March 1, 2011

Algebra 2
3x^2 + 1 + (-3x)/(x^2 - 3) Yes, your answer is correct, but I was taught that the remainder is expressed as, (-3x)/(x^2 - 3)
March 1, 2011

http://www.jiskha.com/display.cgi?id=1299028007
March 1, 2011

calculus
Ignore my response. I completely misunderstood the question.(:
March 1, 2011

calculus
I think I read the question wrong. I thought the question wanted the slope of the tangent of f(x) at (1,-5) and the two equations at this point.
March 1, 2011

calculus
y = x^2 - 2 f' = 2x P(1,-5) f' = slope m = 2(1) = 2 Equation of the line tangent at P(1,-5) m = 2 y = mx + b -5 = 2(1) + b -5 = 2 + b b = -7 Equation of the tangent line is, y = 2x - 7 2x - y = 7 Equation of the normal line at P(1,-5) (The normal line is the line that ...
March 1, 2011

accounting
Post your question, but I've noticed that there are not many experts here for accounting questions (depending on the specific question). Depending, I might be able to help, depending on how involved and the specific area involved. Someone might be able to point you in the ...
March 1, 2011

Algebra 2
You have to do polynomial long division. I can't layout the problem here because of the alignment of columns and such. See this website. It explains in detail how to do this. I'll check your answer if you post it. Good luck :) http://www.purplemath.com/modules/polydiv2...
March 1, 2011

geometry
See this post. Only the side length is different. Same method is used. http://www.jiskha.com/display.cgi?id=1298927532
March 1, 2011

Algebra 2
You need parenthesis. I'll assume your problem is, x/(x+1) + 5/x = 1/(x^2 + x) x/(x+1) + 5/x = 1/(x(x + 1)) Multiply both sides by x(x + 1) x^2 + 5(x + 1) = 1 x^2 + 5x + 5 = 1 x^2 + 5x + 4 = 0 (x + 1)(x + 4) = 0 x = -1 or x = -4 Make sure you check both answers in the ...
February 28, 2011

calculus
| = integration symbol | u dv = uv - | v du | arctan(4t) dt u = arctan(4t) du = 4/(16t^2 + 1) dt dv = dt v = t It should look like this, = t arctan(4t) - | 4t/(16t^2 + 1) dt After you set that up, substitute w = 16t^2 + 1 dw = 32t dt 1/32 dw = t dt Then, the integration should...
February 28, 2011

math algebra1
x = Janet's distance to office 2x - 1 = Lynn's distance to office x + 2x - 1 = 8 3x = 9 x = 3 x = 3 mi from Janet's house to office 2x - 1 = 5 miles Lynn's house to office
February 28, 2011

Algebra 1
You're welcome :)
February 28, 2011

Algebra 1
y = height = -16t^2 + 63t + 4 The vertex of this parabola is called the maximum point. Vertex = -b/2a Vertex = -63/(2(-16)) Vertex = t value = 1.96875 So, the maximum value for t seconds is 1.96875 y = height = -16t^2 + 63t + 4 t = 1.96875 y = -16(1.96875)^2 + 63(1.96875) + 4 ...
February 28, 2011

math
Assuming he spent all his money, x = Money he started with 1/3 x = spent on hat 1/6 x = spent on socks 12 = spent on a tie Total spent = 1/3 x + 1/6 x + 12 Total spent = 2/6 x + 1/6 x + 12 Total spent = 3/6 x + 12 Money he started with - Total spent = 0 x - (3/6 x + 12) = 0 6/...
February 28, 2011

Math 10+
Or, do you mean 2^(-3) = 1/(2)^3 = 1/8
February 28, 2011

Math 10+
1/8 = 0.125 x^(0.125)
February 28, 2011

math
The diagonal of a square forms two 45-45-90 triangles. The sides of a 45-45-90 triangle are in the ratio, a : b : hypotenuse x : x : x(sqrt(2)) The diagonal is the hypotenuse of this 45-45-90 triangle. Side = 7 7 * (sqrt(2)) = ?
February 28, 2011

What is ã ?
February 28, 2011

You're welcome! I hope I'm right. :) The problem is so wordy, so at first, I wasn't sure if more was expected. Good luck!
February 28, 2011

1. Looks right. 2. I'm not sure why you subtracted the \$7000. first. The problem says 0.18 on orders of at least 22,000 units? 22,000 * 3.00 = 66,000 22,000 * 2.82 = 62,040 66,000 - 62,040 = 3,960 rebate 3960/66000 = 0.06 * 100 = 6% discount 3. 30,000 * 3 = 90,000 30,000...
February 28, 2011

What exactly is your question? You show work and answers for all 4 questions. Are your answers correct? Are you asking for someone to check your work because you don't know if the answers you have listed are correct? You need to ask specific questions.
February 28, 2011

maths
Is this what you don't understand? 45% = 45/100 = 0.45
February 28, 2011

algebra
If this is what you mean, cube root = cr (cr(81)) = (cr(27))*(cr(3)) (cr(81)) = 3*(cr(3)) (cr(81)) = 3(cr(3)) This can be written as 81^(1/3) = 3(3^(1/3)) 81^(1/3) = (3^(3/3)*(3^(1/3)) 81^(1/3) = 3^(4/3)
February 28, 2011

Algebra
(sqrt(xyz))^3 (sqrt(xyz))*(sqrt(xyz))*(sqrt(xyz)) xyz(sqrt(xyz)) This can be written as, ((xyz)^(1/2))^3 = (xyz)^(3/2)
February 28, 2011

geometry
What is the figure and where are these segments? (AB, BC, AD, CD) located on this figure?
February 28, 2011

algebra
Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8). You are given 3 points of the rectangle. You need to find the 4th point. Rectangle ABCD, labeled clockwise from the bottom horizontal segment. A(-0.1, -3.4) B(-7.9, -3.4) C(-7.9...
February 28, 2011

algbra
drwls gave you the equation above. "You therefore have a horizontal line with equation" y = 18.1 points (-6.2,18.1) and (-3.4,18.1) As drwls said above, "The slope is zero and the y-intercept is 18.1." The slope intercept form of an equation is, y = mx + b ...
February 28, 2011

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