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April 17, 2014

Search: math-followup

Number of results: 214,311

math-followup
A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple. Picking randomly in the dark, how many shoes must I pick before for sure that there is one matching pair in red or blue? Ms Sue answered 4. Request for explanation please. math - Ms. Sue, Tuesday, January 29, ...
Wednesday, January 30, 2013 at 8:41am by rama

math-followup
the ans shud be 5 tho. Not 4
Wednesday, January 30, 2013 at 8:41am by oluchi

followup question
-- For this question, I know how to find the initial speed. If it asks, "What is the speed of the car just before it lands safely on the other side?" how do i calculate that because it's not the same as final velocity right? --------------------------------- you got u, the ...
Friday, February 4, 2011 at 4:09pm by Damon

Science followup
I posted a question on flying fish and Sra answered me this morning, and she sent me a browse that she typed in but nothing there was helpful...Does anybody else know if flying fish can communicate and if so how?..Thank you!
Thursday, February 17, 2011 at 5:38pm by Inna

Science followup
One link talked about fish that live deeper in the sea about their using color, olfactory, etc. But I did find that in the site I gave you this morning about jumping fish, it did say "yes, fish communicate." How do flying fish jump out of the water? Their pectoral fins enable ...
Thursday, February 17, 2011 at 5:38pm by SraJMcGin

geometry - followup
While the question did not state the dimensions of the field, a quick web search will confirm that the field is 90' on a side, in the shape of a square.
Tuesday, October 18, 2011 at 12:57pm by Steve

Followup-Calculus-Extrema
Find and classify the relative maxima and minima of f(x) if f(x)= defint a=0 b=x function= t^2-4/(1+cos(t)^2) dt x^2-4/(1+cos(x)^2)= 0 x^2-4=0 x^2=4 x= +/- 2 So I got relative maximum as -2 and 2. And relative minimum as zero. However, when I graph it on Wolfram, it gives me ...
Friday, May 17, 2013 at 9:44pm by Eric

Followup-Calculus-Extrema
I got +/-4.99 and +/-7.99 when I typed the keyword 'local maximum x^2-4/(1+cos(x)^2)' into the equation box. It just gave me a list of maxima.
Friday, May 17, 2013 at 9:44pm by Eric

Chemistry (Analytical) followup
Thanks DrBob for answering the question! I was assuming it was something similar to that, but my confusion is that a follow up question is asking what happens to the dissolved Ca2+ if the pH is reduced to 2, so the pH has some effect, but I don't know what.
Saturday, February 8, 2014 at 3:41pm by Nathan Berry

Chemistry (Analytical) followup
I assume this is the CaC2O4 problem. If the pH is reduced to 2, that makes the H^+ MUCH larger (by a factor of 10,000,000 which is really MUCH larger) and the solubility of the CaC2O4 is increased significantly. The reason is that you add a competing reaction (actually two ...
Saturday, February 8, 2014 at 3:41pm by DrBob222

physics
Please post followup questions separately
Saturday, November 20, 2010 at 7:48am by drwls

math
by how many order of magnitute is the speed of light greater than the average speed of grey sound? Rose Diamond when he set the hight gate track 710 m record of for this 47.43 sec in April 2003 710m/47.43s = close to 15 m/s. The speed of light is 3 x 10^8 m/s or 30 x 10^7 m/s...
Monday, October 16, 2006 at 9:56pm by math

how would I....
how would I express the repeating decimal representaion of 1/9 as an infinite series using sigma notaion? Limit of (as n-> infinity) (Sigma) 0.1 + (0.1)^2 + (0.1)^3 +... (0.1)^n = 0.11111.... = 1/9 I think drwis did this right, It looks like lim n->infty Sigma i=1 to n 10-i
Thursday, October 19, 2006 at 4:53pm by math!

me
(4-y^2)/(y-2) = y/2 (4-y^2)/(y-2) = y/2 4 - y^2 = (y*(y-2))/2 4 - y^2 = (y^2-2y)/2 8 - 2y^2 = y^2 - 2y 3y^2 - 2y - 8 = 0 (keep the above equation in mind) quadratic formula: (-b +/- sqrt(b^2 - 4ac))/2a now solve by plugging in the appropriate numbers and choose (normally) the ...
Monday, October 30, 2006 at 8:28pm by math

literature - Don Quixote or Middlemarch
which one is better? In my opinion, for a high school student, Don Quixote reads better.
Sunday, November 5, 2006 at 8:50pm by math

math
the price of is 150/m3. the price is raisd by 10% each year. wat will the price of oil be at the end of two years? what is 1.1^2 * 150? if i understand the question the answer would be 181.5 The question isn't exactly clear how the 10% is done. If it is raised by 10% of the ...
Wednesday, December 20, 2006 at 12:17am by math

Check!!!
okay so the question is: A unit circle center at the origin undergoes a series of transformations. The equation of the resulting graph is (x-3)^2+ (y+4)^2= 25 describe the transformation the unit circle underwnt Answer: The original circle was centered at the origin and had ...
Wednesday, February 14, 2007 at 3:54pm by math

Matthew
Simplify: 5x{24-19)x[25+23)divided by 12-(9-7)} Please help! Subject is algebra. sorry- please help! Am I working the problem correctly? IS THE ANSWER 50? 5x{24-19)x(25+23)divided by (12-(9-7)) = (5x5x48)/(12-2) = (25 x 48)/10 = ? No, the answer is not 50. As best as I can ...
Wednesday, February 14, 2007 at 5:54pm by Math

math
How do I change a fraction to a percent? Like 9/15 to a percent for instance. put 9/15 in your calculator and hit equals
Wednesday, February 14, 2007 at 7:53pm by math

Sandra
2/7 divided by 6 I know to invert the fraction, then what? Please help! 2/7 divided by 6/1 = 2/7 multiplied by 1/6 Multiply and then reduce. http://mathforum.org/library/drmath/sets/select/dm_divide_fract.html =)
Monday, February 19, 2007 at 8:56pm by Math

Bailey
I can't figure this out. Please help! Estimate 16 20/21 * 28 3/7 - 4 13/25 + 8 2/47 as a whole number or as a mixed number where the fractional part is 1/2 Someone please help! 17 * 28 - 5 + 8 would give you an estimate. However, since you don't have parentheses (), I don't ...
Tuesday, February 20, 2007 at 9:53am by Math

Math
How do you find critical points in a function? For example, find the critical points in f(x)=12+2x^2-x^4 please help me somebody find the derivative and set it equal to zero
Wednesday, February 21, 2007 at 6:53pm by Math

Math+ confused?!
I had to solve for this: 1) choose 4 people from a class of 12 My answer: n=12 r=4 12C4 = 495 2) chosse 8 people from a class of 12 my answer: n=12 r=8 12C8 = 495 why is it that they both eqaul 495? maybe I am doing it wrong but I am confused why do they both equal 495? They ...
Tuesday, May 15, 2007 at 2:11pm by Math

calculus
equation of the normal to the graph of f(x)= x/2x-3
Monday, November 5, 2007 at 6:30pm by math

math
The capacity of an elevator is either 15 children or 11 adults. If 8 children are currently in the elevator, how many adults can still get in?
Thursday, December 6, 2007 at 10:50am by math

math
suppose you have a pipe with circumference of 8 cm and length equal 3 cm and that 10 turn of a wire are wrapped about the pipe. what is the length of the wire
Friday, December 7, 2007 at 1:49pm by math

finance
What does the shape of a treasury bond yield curve tell you about expected future inflation?
Monday, March 10, 2008 at 8:49pm by math

math
create a 3 d shape that has two pickels
Thursday, May 29, 2008 at 8:31pm by math

math
help me solve these problems please 1 1/2 - 3 2/5 + 8/15 - 2 2/3 (-4 7/12) - (-3 2/3)- 1 /24 + 2 5/8 -3 1/2 - (- 1 5/6) + (-1 1/12)+ 2 3/4 8-5*2+6/(-2) this i think i can get the right answer 8-10+(-3) -2+(-3)=-5 is that the rite answer 2 7/9/ (-1 4/81)- 11/17 -1.5 / (-3) + (-...
Sunday, August 3, 2008 at 5:40pm by math

math
Convert: 2.7x10^-3 kg/cm^3 to kg/m^3 0.81 g/cm^3 to kg/m^3
Tuesday, August 26, 2008 at 10:17am by math

arnold
how do i solve this? x +(12/x)=12 and (5/x+4)=4+(3/x-2)
Thursday, August 28, 2008 at 6:35pm by math

arnold
thank-you. i see how to do it now
Thursday, August 28, 2008 at 6:35pm by math

kayla
A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?
Tuesday, September 2, 2008 at 6:13pm by math

Sally
I have a factoring question; what is 8a^2-8a-30? I've been working on this for a while and I think I understand factoring, but I'm not getting the right answer, which is supposed to be 2(2a-5)(2a+3). Any help would be so appreciated! :)
Tuesday, September 23, 2008 at 6:50pm by Math

math
100x2 + 90x - 90x - 81 = Answer:100x2 - 81
Thursday, October 2, 2008 at 12:51am by Math

Algebra 1
-13=2b-b-10 1st step. (2b-b) = -13=b-10 2nd step- Make sure the variable (b) is on one side. We must add 10 to each side to make sure that variable (b) stands alone. -13 = b - 10 +10 = b + 10 ----------- -3 = b
Wednesday, October 1, 2008 at 11:26pm by Math

or pre-algebra
(a)on july 15,2007 , the national debt of the united states of americawas a little more than 8.8 trillion dollars. at that time, the population of the united states was a little more than 300 million. approximately how much money would each of the 300 million people living in ...
Thursday, November 13, 2008 at 11:43pm by math

math
can someone give me proof that a negative number times a negative number is a positive number I've always been told this in like seventh grade that it is but havne't been given any proof
Friday, January 30, 2009 at 3:42pm by Math

Algebra 2
i'm not sure how to evaluate this (6)/(X^-4) + (5)/(X^-2)
Sunday, February 1, 2009 at 10:30pm by Math

jess
Solve: 8p-4 = 4(2p-1) Isn't it equals to 0?
Tuesday, February 10, 2009 at 9:02pm by Math

percentage
a student has an avg of 57%. he has 2 test left which was are both worth 5% and 1 assigment worth 1 %. he also has 1 one big asigment worth 5%. how much would he need minimun in all these to get a 80% avg by the end of it?
Tuesday, April 21, 2009 at 6:28pm by math

Math
I need help with these three problems. I cant figure them out. 3. The difference of two numbers is tripled. The result is decreased by 1. If the lesser of the two numbers is 4 the result is 8.3. Find the greater number. 4. A number increased by 21 is ewuivalent to half the ...
Tuesday, May 5, 2009 at 7:36pm by Math

AL
The instructions to my book work says for the data in each table, tell whether y varies directly with x. If it does write an equation fo rthe direct variations. Well how do you do that exactly. Thanks you for your help.. Please help me.
Tuesday, May 12, 2009 at 5:02pm by Math

Math
I'm trying to create a graph in excel and how come when i put this into my graph (21.8(151.1)^-1)100 I get undefined and all my calculators on my computer also give me undefined however my ti 83 gives me an answer around 19
Thursday, June 4, 2009 at 8:51pm by Math

Math
now i'm trying to find a percent
Thursday, June 4, 2009 at 8:51pm by Math

Compound Interest : Future Value and Present Value
Payments of $1800 and $2400 weere made on a $10,000 variable-rate loan 18 and 30 months after the date of the loan. The interest rate was 11.5% compounded semi-annually for the first two years and 10.74% compounded monthly thereafter. What amount was owed on the loan after ...
Friday, July 24, 2009 at 1:22am by Math

Compound Interest
A bank offers a rate of 5.3% compounded semi-annually on its four year GICs(Guaranteed Investment Certificates). What monthly and annually compounded rates should it quote in order to have the same effective interest rate at all three nominal rates?
Friday, July 24, 2009 at 1:25am by Math

Chopsticks
solve the equation for x using the quadratic formula: 3x^2 + 8x + 1 = 0 Work: I tried factoring it, but I can't do it. (3x + ?)(x + ?) I'm thinking the ? = 1 but that won't work.
Monday, August 31, 2009 at 10:55pm by math

Chopsticks
Ahh wait I got it. I was thinking something weird. I jus thave to plug it in
Monday, August 31, 2009 at 10:55pm by math

help
Find the measures of two supplementary angles m and n m=6x+3 n=2x-7
Wednesday, September 30, 2009 at 10:30pm by math

math
write a sequence for the rule. 1. a - 4 = b 2. a +(2-1) = b 3. a - (3-3)= b 4. a +(4 - 3) = b 5. (a + 2) - 2 = b 6. (a + 4) - (2 -1) = b
Tuesday, October 13, 2009 at 3:27pm by math

algebra
first mutibly the base with the power.
Tuesday, October 13, 2009 at 3:21pm by math

Calculus
What is the area of the largest rectangle that can be placed in a 5-12-13 right triangle (as shown)?
Monday, October 26, 2009 at 6:26pm by math

3rd grade
When you write 2,500 in expanded form, how many addends do you have? 2,000+ 500+0+0 ??
Wednesday, October 28, 2009 at 7:36pm by Math

kaley
find the points at which the graph of 4x^2 - 4x + 12y^2 -6y = 10 has a vertical and horizontal tangent line. For the vertical only solve for y and for the horizontal only solve for x. I got the deriviative to be: (8x-4)/(-24y + 6). For the horizontal, x = 1/2 For the vertical ...
Monday, November 2, 2009 at 9:00pm by math

alison
How do i find the points of inflection for: f(x)= (1/12)x^4 -2x^2 +15 The answers are (2, 25/3) and (-2, 25/3) but i dont know how to get the answers. Can someone show me step by step?
Sunday, November 8, 2009 at 4:17pm by math

alison
I have to do a lot of homework problems like this but I do not really understand how to do any of them. Can someone show me how to do this one so I can do the rest of my homework problems on my own? Thanks. Let A = (a, f(a)) and B = (b, f(b)) Write an equation for: a) the ...
Wednesday, November 11, 2009 at 4:40pm by math

alison
I have to do a lot of homework problems like this but I do not really understand how to do any of them. Can someone show me how to do this one so I can do the rest of my homework problems on my own? Thanks. Let A = (a, f(a)) and B = (b, f(b)) Write an equation for: a) the ...
Wednesday, November 11, 2009 at 5:55pm by math

5th grade
I am not sure on this question. Can you help me. Question: How can you tell if 31/33 is already in its simplest form? I wrote my answer to the following questions, can you tell if it is right? Question: Can the Greatest Common Factor of 18 and 36 be greater than 18? My Answer...
Friday, November 13, 2009 at 12:57pm by Math

math
Let (AB) and (CD) be 2 parallel lines by a transversal at E and F respectively.The bisector of AEF and BEF cut (CD) at M and N respectively.The bisector of CFE cuts [ME] at S, and the bisector of DFE cuts [Ne] at T.Show that: ETFS is a rectangle
Monday, December 14, 2009 at 10:10am by math

kate
can someone please help me solve this problem with the steps. A small can of juice contains 16 fl oz. A large can has twice the base circumference of the first. How much juice is in the large can if both cans are right circular cylinders and the second can is similar to the ...
Sunday, December 20, 2009 at 1:31pm by math

math
-1x>-5 _ _ 8 16 help
Sunday, January 17, 2010 at 4:08pm by math

algebra
the permeter of a rectangle is 148 inches the length exceeds the width by 52 inches find the length and width..
Sunday, January 17, 2010 at 4:30pm by math

algebra
yes so the width is 11 and the length is 63
Sunday, January 17, 2010 at 4:30pm by math

Jane
I am confused what would be a real-life solution using polynomial division.
Thursday, January 21, 2010 at 4:43pm by Math

lisa
This is a question given to me to answer:How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other kind? This is my answer: ...
Thursday, January 21, 2010 at 5:00pm by Math

MATH
Tory is painting a design on her jacket. The side lengths measure 14 cm, 16 cm and 12 cm. What type of triangle is this?
Wednesday, February 10, 2010 at 5:36pm by MATH

Math
Then how much is 1 mL?
Tuesday, February 16, 2010 at 9:04pm by math

i dont know
no that's not math, i said that the subject was I DON'T KNOW!
Tuesday, February 16, 2010 at 9:18pm by math

English
In the park would be the best answer.
Tuesday, February 16, 2010 at 7:02pm by math

Math
what is higher 50 mL or 5 L?
Tuesday, February 16, 2010 at 9:04pm by math

i dont know
What is the capital of the state that shares its long southern border with Texas?
Tuesday, February 16, 2010 at 9:18pm by math

physics
huh?
Tuesday, February 16, 2010 at 7:13pm by math

12th grade
I think that's history
Tuesday, February 16, 2010 at 9:52pm by math

Math
So is 5 L better then 50 mL
Tuesday, February 16, 2010 at 9:04pm by math

Grade 2 english
oh, you had to unscramble it.
Tuesday, February 16, 2010 at 10:20pm by math

English
Both
Tuesday, February 16, 2010 at 8:09pm by math

3rd grade math
The answer is 13. 13 times 2 = 26 13 times 6 = 78 13 times 4 = 52
Thursday, February 18, 2010 at 9:05pm by Math

honors algebra 1
composition function g(f(x)) so where ever you see x in the g(x) equation plug in f(x) so do the reverse g(x)= (1/2)x so when you check your work g(f(x))= (1/2(2x)) ----> the 1/2 and the 2 cancel and you are left with just x so it checks!
Thursday, March 4, 2010 at 9:35pm by math

donna
3x+4Y=13 (2,7)
Sunday, March 7, 2010 at 7:42pm by math

MATH
does the series 1/n from n=0 to infinity converge or diverge? what convergence test is this?
Tuesday, March 9, 2010 at 12:29pm by math

9th grade
5x-3y=23...............equation (1) 3x+5y=7.................equation (2) Eq. (1) x 5: 25x-15y=115......Equation (3) Eq. (2) x 3: 9x + 15y=21........Equation (4) Eq (3)+Eq. (4): 34x = 136 (eliminating y) Therefore, x = 4
Tuesday, March 16, 2010 at 6:50pm by Math?

frank
(6-4x-x^2)^2
Wednesday, July 21, 2010 at 10:47pm by Math

algebra II
�ã(x+9)= -9
Sunday, July 25, 2010 at 1:22pm by math

Math
Help! How do I complete these magic squares! They're taking me FOREVER! In magic squares, certain numbers have to add up to a certain sum, and be the same sum diagonal,across,and vertical. (Sorry if I didn't explain well) Arrange the numbers 2,4,6,8,10,12,14,16, and 18 so that...
Wednesday, August 25, 2010 at 4:00pm by math

science
A hypothesis is an educated guess, or a guess that you make based on your knowledge, on the outcome of an experiment.
Tuesday, August 24, 2010 at 5:41pm by math

college
(2x^(2)+7x-15)/(2x^(2)+13x+15)
Tuesday, August 31, 2010 at 9:06pm by Math

college
(2x^(2)+7x-15)/(2x^(2)+13x+15)
Tuesday, August 31, 2010 at 9:06pm by Math

statistics
2.60
Thursday, September 9, 2010 at 11:49pm by math

statistics
2.60
Thursday, September 9, 2010 at 11:49pm by math

statistics
256(trust me)
Thursday, September 9, 2010 at 11:51pm by math

statistics
A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20 -1.77* Nurturance 16.11...
Thursday, September 9, 2010 at 11:57pm by math

statistics
A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20 -1.77* Nurturance 16.11...
Thursday, September 9, 2010 at 11:58pm by math

statistics
A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to know whether the kind of students in this class differs from that of fourth graders in general at her school. On the test, a score of 10 indicates ...
Thursday, September 9, 2010 at 11:59pm by math

alicia
Thanks Ms. Sue!
Tuesday, September 14, 2010 at 3:25pm by math

alicia
Okay, write the expression or inequality. : the difference of a number z and 11 is equal to 35 How would I do that? please explain in great detail
Tuesday, September 14, 2010 at 3:25pm by math

math
what is a word problem for 2x-4=8?
Tuesday, September 28, 2010 at 7:59pm by MATH

jake
The point (0,1) has the distance ____, from the line defined by y=-2x-1 How do you solve this? I tried the pythagorean theorem but I don't think I did it right as I came out with the square root of two. Can someone please explain this to me.
Thursday, October 7, 2010 at 10:39pm by math

liz
You build a box that is 4 feet long, 5 feet wide, and 8 feet high. The distance from the top left front corner to the top right back corner is ______. I tried a= 4 + 5 a= 41 d = 41 + 8 d= 105 d=+- 10.25 is this right?
Friday, October 8, 2010 at 5:04pm by math

Shadow
Write a two column proof. 1.Reflexive property of Congruence. -Thanks
Wednesday, October 13, 2010 at 11:52pm by Math

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