Thursday
May 5, 2016

Posts by shawn

Total # Posts: 546

American History
1.True 2.A 3.B 4.D 5.A 6.True 7.c. 8.False 9.True 10False 11.A 12.True 13.True 14.D 15.A 16.C 17.False 18.C 19.True 20.true 21.C. 22.A. 23.B 23
May 14, 2009

Science
Why do non-polar substances tend to boil at relatively low temperatures?
May 14, 2009

english
how do you describe an authors writing style and structure?
May 10, 2009

math
18 inches is the answer to the first question because you must be 48 but you are only 30 now, you must grow 18 (48-30) 1,010 is the answer to the second question, 840+1,150=1990 but you can only eat 3,000-1,990 now which is 1,010 :)
March 14, 2009

psychology
1. The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful ...
March 13, 2009

college precal
find all the values: sin2x- sqrt3cosx=0
December 12, 2008

sci/275
Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. · Post your response to the following: Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix C. How ...
December 9, 2008

Algebra check
Where appropriate, include the approximation to the nearest ten-thousandth. 27.) log x = -3 I have the answer as 1 28.) 7 ^(4-9x)= 49 I have the answer as 2/9 29.) 8^x =5.2 not sure 30.) 1n x=5/8 not sure Are these answers right?
December 1, 2008

Algebra help
Thanks
December 1, 2008

Algebra help
State the domain and the range of each function. 22.) f(x)=e^x +3 the +3 is separated 23.) g(x)= 1n(x-1)
December 1, 2008

Math help
Okay x^2-4 = 4 x^2= 8 sqrt(x^2)= sqrt 8 x= 2.83 is this right?
December 1, 2008

Math help
Where appropriate, include the approximation to the nearest ten-thousandth. 31.) log(x-4)+ log(x+4)= log4 I have the answer as 4 Is this answer right?
December 1, 2008

Algebra help 2
27.) x=1 28.) I have x= 2/9 Not sure about the last two 29.) 8^x =5.2 not sure 30.) 1n x=5/8 not sure
December 1, 2008

Algebra help 2
Where appropriate, include the approximation to the nearest ten-thousandth. 27.) log x = -3 I have the answer as -3 28.) 7 ^(4-9x)= 49 I have the answer as 2 29.) 8^x =5.2 not sure 30.) 1n x=5/8 not sure Are these answers right?
December 1, 2008

Algebra Thanks
Thanks
December 1, 2008

Algebra help bobpursley
Where appropriate, include the approximation to the nearest ten-thousandth. 24.) 3^x= 1/81 I have x = 1/5 25.) logx 125 =3 I have x = 5 26.) log64 x = 1/2 I have x = 8 Are these answers right?
December 1, 2008

Algebra
Where appropriate, include the approximation to the nearest ten-thousandth. 24.) 3^x= 1/81 I have x = 1/5 25.) logx 125 =3 I have x = 5 26.) log64 x = 1/2 I have x = 8 Are these answers right?
December 1, 2008

Algebra
Where appropriate, include the approximation to the nearest ten-thousandth. 24.) 3^x= 1/81 25.) logx 125 =3 26.) log64 x = 1/2
December 1, 2008

Algebra help
State the domain and the range of each function. 22.) f(x)=e^x +3 23.) g(x)= In(x-1)
December 1, 2008

Algebra
actually the +3 is separte so it is f(x)= e^x +3 and the second problem is g(x)= In(x-1)
December 1, 2008

Algebra
State the domain and the range of each function. 22.) f(x)=e^x +3 23.) g(x)=1n(x-1)
December 1, 2008

Algebra help
Okay I got it log (8/3) = log 8 - log 3 = 2.079 - 1.099 = 0.98 log 24 = log (3x8) = log 3 + log 8 = 3.688 log 25 = log 5^2 = 2 log 5 = 2.138
December 1, 2008

Algebra help
If loga 8=2.079, loga 5=1.609, and loga 3=1.099, find the following? 19.) loga 8/3 is this 1.89? 20.) loga 24 Not sure 21.) loga 25 not sure how to do this
December 1, 2008

Algebra help
Thanks
December 1, 2008

Algebra help
Simplify: Note: The first letters next to log are the small letters. 16.) logr r 17.) logt t^4 18.) logb 1
December 1, 2008

Algebra help
Okay thanks
December 1, 2008

Algebra help
Express in terms of logarithms of a, b, and c: log(a^3b^2)/c How would I convert this?
December 1, 2008

Algebra help
Thanks
December 1, 2008

Algebra help
Find the formula for the inverse of each function. 4.) g(x)= (x+5)^3 I do not understand how to do this one.
December 1, 2008

Algebra check
Thanks
December 1, 2008

Algebra check
Convert to exponential equations. 12.) m=log3 9 I have the answer as 3^m =9 13.) log2 64=6 I have the answer as 2^6 =64 Are these answers right?
December 1, 2008

Algebra check Reiny
So then are these answers right? 10.) 4^-3 =1/64 I have the answer as log4 1/64 =-3 11.) 144^1/2 =12 I have the answer as log 144^12 =1/2
November 30, 2008

Algebra check DrBob222
I have a question the formula that I used was b^y=x means that logbx=y is this the correct formula? so using that formula I got the following. 4^-3 =1/64 I have the answer as log4 1/64 =-3 144^1/2 =12 I have the answer as log 144^12 =1/2
November 30, 2008

Algebra check
Thanks.
November 30, 2008

Algebra check
Convert to Logarithmic equations. 10. 4^-3 =1/64 I have the answer as log4 1/64 =-3 11. 144^1/2 =12 I have the answer as log 144^12 =1/2 Are these answers right?
November 30, 2008

Algebra inverse question
Hi Reiny, I just have one question for 4.) the problem is g(x)= (x+5)^3 how were you able to convert the equation to the following? let y = (x+5)^2 interchange x with y x = (y+5)^2
November 30, 2008

Algebra inverse
Find the formula for the inverse of each funtion. 3.) f(x)= 2x-5 for this one I have y= (x+5)/2 is this correct? 4.) g(x)= (x+5)^3 I am stuck on this one.
November 30, 2008

Thanks
Thanks
November 30, 2008

Algebra check Damon
Not a function but is it one to one?
November 30, 2008

Algebra check
Determine whether f(x)=x^2 is one to one. I have the answer as yes. Is this right
November 30, 2008

Algebra check
Determine whether f(x)=x^2 is one to one. When I substitute values in for x even when I use negative values x^2 will be positive so is it one to one?
November 30, 2008

Algebra help drwls
for f of g(x) I have -4x^2-10x-6 Is this right?
November 30, 2008

Algebra help
Find (fog)(x)and (gof)(x)if f(x)=x-x^2 and g(x)= 2x+3. Okay so I did the following: For f(of)g(x), take (2x+3) - (2x+3)^2 (insert g(x) where the "x" is in f(x) ) For g(of)f(x), take 2[x-x^2] +3 The first answer that I get for (2x+3) - (2x+3)^2 is -4x^2-12x-9 The ...
November 30, 2008

Algebra help
Find (fog)(x)and (gof)(x)if f(x)=x-x^2 and g(x)= 2x+3.
November 28, 2008

Algebra word problem help
Thank you. I was able to get the same answers.
November 21, 2008

Algebra word problem help
The average walking speed R of people living in a city of population P,in thousands, is given by R=0.37InP+0.05, where R is in feet per second. a.) The population of Honolulu, Hawaii is 395,790. Find the average walking speed. b.) A city's average walking speed is 2.70 ft/...
November 21, 2008

6th geography kinda in a hurry
whoops i meant NYG to arizona not TN
November 20, 2008

6th geography kinda in a hurry
Number the rivers in the sequence the NY giants will cross them en route to the valley of the sun(Tennessee) Arkansas Delaware Hudson Illinois mississippi Missouri Ohio Rio Grande
November 20, 2008

6th geography
Yeah i have 2 more that i cant find: can you answer (or atleast help with) these questions- Number the rivers in the sequence the NY giants will cross them en route to the valley of the sun(Tennessee) And (the other question is much more important)what 5 states cover the area ...
November 20, 2008

6th geography
your a life saver
November 20, 2008

6th geography
what is the shallow part of the sea off the coast of Boston called?
November 20, 2008

Math Algebra check Thanks
Thanks
November 10, 2008

Math Algebra check please
Solve w= (va)/(r^2+a^2) for a. I applied the quadratic formula a= (v/w +- sqrt (v^2/w^2 - 4*(-wr^2)) /2 and I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w is this right?
November 10, 2008

Math help
Did I find this out correctly?
November 10, 2008

Math help
Solve: x-(3/x)<0 is the answer(-infinity, -sqrt3)U(0,sqrt3) ?
November 10, 2008

MAth answer check
One solution of kx^2 +6x-k=0 is -3. Find the other solution I have the answer as -1/3 is this right?
November 10, 2008

Algebra problem
Which of the following points is an x-intercept of the graph of f(x)=(x^2+2x)^2 -11(x^2+2x)+24? a.)(4,0) b.)(-6,0) c.)(6,0) d.)(-4,0)
November 10, 2008

Math check please
Solve w= (va)/(r^2+a^2) for a. I applied the quadratic formula a= (v/w +- sqrt (v^2/w^2 - 4*(-wr^2)) /2 and I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w
November 10, 2008

Math Help please answer
I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w
November 9, 2008

Math Help please
Solve w= (va)/(r^2+a^2) for a. is the answer a= sqrt[w(r^2+v^2)/v]?
November 9, 2008

Math Algebra help
Solve w= (va)/(r^2+a^2) for a. is the answer a= sqrt[w(r^2+v^2)/v]?
November 9, 2008

Math Algebra check
Which of the following quadratic equations has -4 and 3/4 as the solutions? a.)x^2+(13/4x)-3 b.)x^2+(30/7x)-(25/7) c.)x^2+(30/7x)+(25/7) d.)x^2-(13/4x)+3 I substituted the values and I have the answer as (a.)
November 9, 2008

Math help
Which of the following quadratic equations has -4 and 3/4 as the solutions? a.)x^2+(13/4x)-3 b.)x^2+(30/7x)-(25/7) c.)x^2+(30/7x)+(25/7) d.)x^2-(13/4x)+3 I substituted the values and I have the answer as (a.)
November 9, 2008

Math help update Thanks
Thanks
November 9, 2008

Math help update
let f(x) = 12x^2 +7x-10. Find x such that f(x)=0 a.) -4/5, 5/3 b.) -5/4, 2/3 c.) -2/5, 5/3 d.) -5/3, 2/3 I think I have it. I was able to factor out 12x^2 +7x-10 to (4x+5) (3x-2)=0 The answer is -5/4 and 2/3 right?
November 9, 2008

Math answer check
Determine the type of number that the solutions of x^2 +5x+3=0 will be I have the answer as rational is that right?
November 9, 2008

Math help 2 answers
I think I have it I was able to factor out 12x^2 +7x-10 to (4x+5) (3x-2)=0 answer is -5/4 and 2/3 right?
November 9, 2008

Math help 2
let f(x) = 12x^2 +7x-10. Find x such that f(x)=0 a.) -4/5, 5/3 b.) -5/4, 2/3 c.) -2/5, 5/3 d.) -5/3, 2/3
November 9, 2008

Math help 2 update
Thanks just to make sure I have the problem as x^2+8x less than or equal to 9.
November 9, 2008

Math help 2
Solve: x^2 +8x </=9. How would I solve this?
November 9, 2008

Math help Thanks
Thank you so much
November 9, 2008

Math help
Solve: x^2 +5x=1. Use a calculator to approxiamte the solutions with rational numbers. is the answer -0.1925824, 5.65331193 ?
November 9, 2008

Math check
Complete the square: x^2 -12x. Which of the following is the correct perfect-square trinomial? the answers are: a.) x^2 +22x+121 b.) x^2 -10x+25 c.) x^2 -20x+44 d.) x^2 -12x+36 This is tough because the answers could be a.) b.) and d.) I am not sure which to choose.
November 9, 2008

word problem 3 thanks
I forgot to move the decimal one more place.
November 9, 2008

word problem 3
Rosie's Palm Pirates, a manufacturer of electronic organizers, estimates that when x hundred Palm Pirates are made, the average cost per unit is given by C(x) = 0.4x^2 -3.68x+9.524, where C is in hundreds of dollars. What is the minimum cost per unit? is the answer $ 10.60
November 9, 2008

Math help
What is the y-intercept of f(x)=x^2+x-12? the answers are a.)(0,12) b.)(-72,0) c.)(0,-12) d.)(0,-72) I have the answer as (c.)(0,-12) is this right?
November 9, 2008

Algebra y-intercept
What is the y-intercept of f(x)=x^2+x-12? the answers are a.)(0,12) b.)(-72,0) c.)(0,-12) d.)(0,-72) I have the answer as (c.)(0,-12) is this right?
November 9, 2008

Math question thanks
thanks so much
November 9, 2008

Math question
Solve: x^-2 - x^-1= 5/4 I multiplied all terms of your equation by 4x^2 to get 5x^2 + 4x - 4 = 0 I get (-2+/-2sqrt6)/5 is this correct?
November 9, 2008

Math word problem 2
You are really good. Thanks. I really appreciate the breakdown of the problem.
November 9, 2008

Math word problem 2
Sabine and Hercule can assemble a table in 45 minutes. Working alone, it takes Hercule 48 minutes longer than Sabine to put this table together. How long would it take for Sabine to assemble the table by herself? What formula would I use to solve this?
November 9, 2008

Math word problem check
oh okay thanks.
November 9, 2008

Math word problem check
The Mad River flows at a rate of 3 km/h. In order for a boat to travel 78.2 km upriver and then return in a total of 8 hr, how fast must the boat travel in still water? what formula would be used to solve this problem? I used the formula of V = D/T T = D/V, you know that 78.2...
November 9, 2008

Math question
I tried the equation and got (-2 }2ã6)/5 Is this the answer?
November 9, 2008

Math
Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?
November 9, 2008

Math word problem
Is the answer 10 km/h?
November 9, 2008

Math word problem
The Mad River flows at a rate of 3 km/h. In order for a boat to travel 78.2 km upriver and then return in a total of 8 hr, how fast must the boat travel in still water? what formula would be used to solve this problem?
November 9, 2008

Math Check
Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?
November 9, 2008

Algebra help
Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?
November 9, 2008

Math question
Thanks I understand now.
November 9, 2008

Math question
Solve: x^2 +4x+1=0 Is the answer 2+-sqrt2?
November 9, 2008

Math help
Thanks
November 9, 2008

Math help
Solve: x+5=x^2 I have (1+- sqrt 21)/2 Is that right or did I calculate something wrong?
November 9, 2008

Algebra
Solve: x^2 +4x+1=0 Is the answer 2+-sqrt2?
November 9, 2008

Algebra
Thanks
November 8, 2008

Algebra
Solve: 5x(x-5)-2x(x+4)=-90 Is the answer 5,6 ?
November 8, 2008

Math check
Solve: 3x^2-11=0 Is the answer" +- sqrt 11/3?
November 8, 2008

Math Algebra check
Solve: 3x^2-11=0 Is the answer" +- sqrt11/3?
November 8, 2008

geography
sorry i meant titusville PA and i got it but thanks
October 30, 2008

geography
what happened in titusville in 1559
October 30, 2008

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