Thursday

April 17, 2014

April 17, 2014

Number of results: 37,678

**for Emily math**

(x+6)(x-2) = x*x -2*x + 6*x + 6*(-2) = x^2 - 2x + 6x - 12 = x^2 + 4x - 12 look at this page http://www.the-mathroom.ca/freebs/alg2/alg2.htm
*Monday, May 25, 2009 at 12:19am by Reiny*

**alg2 check?**

1. (2)(3)x^1+3 = 6x^4 2. (4)^3 x^1*3 y^2*3 = 64x^3y^6
*Thursday, July 11, 2013 at 8:57pm by Chol*

**Alg2**

my bad ^^; its not sentence, its sequence...
*Thursday, March 15, 2012 at 3:08am by Please check my answer (:*

**Algebra II**

Why not see if there is a help video for this assignment. I know there is in the FLVS Alg2 course. Check it out!
*Tuesday, June 22, 2010 at 9:40pm by Mr. W*

**alg2 check?**

Remember that ^ has higher precedence than * or +, so in these expressions, parentheses are required: 1. (2)(3)x^(1+3) =6x^4 2. (4)^3 x^(1*3) y^(2*3) =64 x^3 y^6
*Thursday, July 11, 2013 at 8:57pm by MathMate*

**alg2 check**

a.)write the equation of the line that has a slope of -2 and a y-int of -6. I don't understand if I use y=mx+b or not.how would I plug this in If im trying to get an answer?
*Thursday, July 18, 2013 at 8:03pm by tyneisha*

**alg2**

solve for 10/x^2-2x + 4/x = 5/x-2 3x/x+1 + 6/2x = 7/x 8(x-1)/x^2-4 = 4/x-2 check for any extraneous solutions! thanks!
*Saturday, May 19, 2012 at 8:27pm by skye*

**alg2 check**

y = mx + b m = -2, b = -6 y = -2x +(-6) y= -2x-6
*Thursday, July 18, 2013 at 8:03pm by chol*

**alg2 check**

-2 = (-2/3)(-6) + b -2 = 4 + b -2-4 = 4-4 +b -6 = b m = -2/3 y = mx + b y = -2x/3 +(-6) y = -2x/3 - 6
*Thursday, July 18, 2013 at 8:18pm by Chol*

**alg2 check?**

first off, did you check to see whether x=4 fits the equation? 2(4)+2(4+3) =?= 2(4+7) 8 + 14 =?= 22 yes, so your answer is correct 2x+2(x+3)=2(x+7) 2x+2x+6 = 2x+14 4x+6 = 2x+14 2x = 8 x = 4 Looks like you nailed it. Good job.
*Thursday, July 18, 2013 at 1:09pm by Steve*

**alg2 check?**

1.)...(2x)(3x^3)? I said it was x=5 am I right?step by step plz? 2.)....(4xy^2)^3 im not sure about this one
*Thursday, July 11, 2013 at 8:57pm by tyneisha*

**alg2 check?**

solve for n:6(5n-1)=2(15n-3) I got 30n-6=30n-6 but I think I was suppose to keep going but don't know how. Do I divide or multiply
*Monday, July 15, 2013 at 5:28pm by tyneisha*

**alg2 check?**

solve: 2x+2(x+3)=2(x+7) what I got was x=4 but I really think I calculated wrong. Can you show me the step by step process please?
*Thursday, July 18, 2013 at 1:09pm by tyneisha*

**alg2 check**

b.)write the equation of the line that passes through the point (-6,-2) and has a slope of -2/3. if im using y=mx+b then how would I plug in -2/3 since it is a fraction instead of a regular number?
*Thursday, July 18, 2013 at 8:18pm by tyneisha*

**Alg2**

plug in all your info into the formula ( you have extra information) S(n) = a(r^n -1)/(r-1) 781 = a(5^5 - 1)/(5-1) 781 = a(3124/4) 781 = 781a a = 1 check: t(5) = 1(5^4) = 625
*Sunday, January 15, 2012 at 7:19pm by Reiny*

**Pre-Calculus**

I assumed you knew the formulas, since you have know them to do these kind of problems look under "other identities" http://library.thinkquest.org/20991/alg2/trigi.html
*Sunday, November 14, 2010 at 10:00pm by Reiny*

**math - 1 paragraph**

Since you are the one who took it first and presumably know how to do it, it would be best explained in your own words. If you need to review the subject, try http://library.thinkquest.org/20991/alg2/polyf.html
*Monday, February 23, 2009 at 6:07pm by drwls*

**8th grade**

This site explains it. http://library.thinkquest.org/20991/alg2/systems.html
*Saturday, February 6, 2010 at 6:32pm by Ms. Sue*

**alg2 check?**

Graph the system of inequalities then substitute the (x,y)order pair into both inequalities. y>3x+1 y<-2/3x+4 (second one has a line under the arrow) I don't get what they are asking for? if they want me to solve it how am I suppose to set it up?
*Thursday, July 18, 2013 at 1:49pm by tyneisha*

**Alg2**

Thanks, I did!
*Sunday, December 4, 2011 at 2:24pm by Rock*

**Alg2**

You're welcome!
*Sunday, December 4, 2011 at 7:20pm by MathMate*

**Alg2**

yes
*Monday, May 7, 2012 at 3:26am by Reiny*

**ALG2**

Thank you!
*Friday, December 28, 2012 at 8:20pm by Yvette B.*

**Alg2/Trig**

Okay thanks for your help!
*Thursday, June 4, 2009 at 11:23pm by Vincent*

**Alg2**

20
*Sunday, December 4, 2011 at 2:23pm by Rock*

**Alg2**

Correct!
*Sunday, December 4, 2011 at 2:23pm by MathMate*

**Alg2**

YaY!!!!!
*Sunday, December 4, 2011 at 2:23pm by Rock*

**Alg2**

240
*Sunday, December 4, 2011 at 2:24pm by Rock*

**Alg2**

Perfect!
*Sunday, December 4, 2011 at 2:24pm by MathMate*

**Alg2**

Tysm :D
*Thursday, February 2, 2012 at 1:53am by Yolie*

**Alg2**

An =(n+1)/3n ? A(n+1) = An + 2/3 or An = 1/3 +(2/3)(n-1)
*Thursday, March 15, 2012 at 3:08am by Damon*

**alg2 check?**

2x+2(x+3)=2(x+7) 2x + 2x + 6 = 2x + 14 4x + 6 = 2x + 14 2x = 8 x = 4 You're right.
*Thursday, July 18, 2013 at 1:09pm by Ms. Sue*

**alg2 check?**

correct solution: 24x-6=46-24x-2 48x = 50 x = 50/48 = 25/24 the first major error is the +2 instead of -2 second error is subtracting 6 instead of adding 6 to both sides I think you had picked them out correctly
*Thursday, July 18, 2013 at 1:19pm by Reiny*

**Alg2**

10*9/2 = 45
*Thursday, December 1, 2011 at 10:51pm by Steve*

**Alg2**

intercept has 9 letters 2 t's 2 e's so, 9!/2!2!
*Saturday, December 3, 2011 at 12:22pm by Steve*

**Alg2**

I need more help
*Sunday, December 4, 2011 at 12:05pm by Rock*

**Alg2**

You have to ask a question.
*Sunday, December 4, 2011 at 12:05pm by bobpursley*

**Alg2**

387.187
*Tuesday, December 13, 2011 at 8:17pm by Rock*

**Alg2**

Ty Damon ^^
*Thursday, March 15, 2012 at 3:08am by Lihn*

**alg2 help**

16x^2 /9y^2
*Sunday, July 14, 2013 at 8:55pm by Chol*

**alg2**

but i dont understand how she got it
*Monday, June 9, 2008 at 8:48pm by jerson*

**alg2/trig**

3 multiplies by 4 factorial.
*Wednesday, April 1, 2009 at 7:58pm by Anonymous*

**alg2/trig**

I bet you mean a/(a-b) + b/(b-a) a/(a-b) - b/(a-b) (a-b)/(a-b) 1
*Thursday, October 13, 2011 at 8:36pm by Damon*

**Alg2**

I need help with problem solving...
*Sunday, December 4, 2011 at 2:20pm by Rock*

**Alg2**

what is 25(1.0325)^15 ?
*Tuesday, December 13, 2011 at 8:17pm by Reiny*

**Alg2**

typo, variables don't match
*Monday, March 12, 2012 at 1:34am by Reiny*

**Alg2**

Find the half-life of C14. Call it n years 2^(-t/n) < .005 -t/n < ln(.005)/ln(2) = -7.64 t > 7.64n check: 2^-7.64 = .005013, so after 7.64 half-lives, we are down to .5% of the original.
*Friday, December 9, 2011 at 8:09pm by Steve*

**Alg2**

whoa wrong equation its (9y/x)^(1/4)
*Monday, February 9, 2009 at 10:40pm by Chopsticks*

**alg2**

for the graph: y>x^2+9 what is the range?
*Wednesday, January 19, 2011 at 11:39pm by exam tomorrow! help*

**alg2**

Solve: 3x − 7 (sqrt x) + 2 = 0
*Thursday, January 20, 2011 at 12:05am by katie*

**Alg2**

# of possibilities of arrangements for the word intercept?
*Saturday, December 3, 2011 at 12:22pm by Rock*

**Alg2**

I can See It!!! I was multiplying 600 & 2 together... Thanks :)
*Sunday, December 4, 2011 at 7:20pm by Rock*

**ALG2!**

1.7 - 0.78>5 solve please
*Thursday, October 4, 2012 at 8:24pm by tyneisha*

**Alg2**

take the square root of each side. x=+- 10
*Monday, February 2, 2009 at 8:13pm by bobpursley*

**alg2/trig**

The expression a/a-b + b/b-a is equivalent to a) 1 b)-1 c) ab/a-b d)a+b/a^2-b^2 please help!
*Thursday, October 13, 2011 at 8:36pm by jess*

**Alg2**

what is the # of possibilities of buying 2 CD's from 10 that are on sale?
*Wednesday, November 30, 2011 at 11:22pm by Rock*

**Alg2**

what are the # of possibilities of buying 2 CD's from 10 that are on sale?
*Thursday, December 1, 2011 at 10:51pm by Rock*

**ALG2! WORD PROBLEM!**

0.5n > n - 6
*Thursday, October 4, 2012 at 10:12pm by Ms. Sue*

**Alg2**

Rationalize the demoninator of each expression. (9y/x)^4 i have no idea how to do that
*Monday, February 9, 2009 at 10:40pm by Chopsticks*

**Alg2**

what is the number of possibilities of arrangements of the letters in the word intercept?
*Wednesday, November 30, 2011 at 11:23pm by Rock*

**Math(alg2)**

solve the exponential equation 5(2)^2x - 4 = 13 thanks
*Tuesday, March 13, 2012 at 1:40am by Sammy*

**alg2**

how do i solve for: 2^(x+1) =9 3e^(x-8) +5=14 log2x=4 and ln(2x-5)=4? thanks!
*Saturday, May 19, 2012 at 2:05pm by bkue*

**ALG2!**

-3K - 8 is less than or equal to 5k .....solve please
*Thursday, October 4, 2012 at 8:23pm by tyneisha*

**ALG2! WORD PROBLEM!**

19 + n < 42
*Thursday, October 4, 2012 at 8:48pm by Ms. Sue*

**ALG2! WORD PROBLEM! PLZ HELP!!**

Amen, Reiny!
*Wednesday, November 28, 2012 at 8:44pm by Ms. Sue*

**Math alg2!**

30 5+2X=65 CALCULATE TI
*Thursday, December 13, 2012 at 8:14pm by khan*

**alg2**

function of x equals x minus the absolute value of x, where x is greater than zero.
*Thursday, September 11, 2008 at 11:44pm by Fredr*

**Alg2/Trig**

I plugged that into my graphing calculator and that isn't right. Could someone help?
*Thursday, March 5, 2009 at 8:09pm by Chris*

**Alg2/Trig**

yes, that is also what I got (and I checked it by finding the actual angles)
*Thursday, June 4, 2009 at 11:23pm by Reiny*

**alg2**

Describe the end behavior for the graph of y= 12x^6 + 4x^4 - x^3 + 6x +1
*Sunday, January 9, 2011 at 10:48pm by morgen*

**alg2/trig**

Which expression is defined for all real numbers? a) x + 3/x^2 b) 5/(x + 2)^2 c)4/(x − 2)^2 d)7/x^2 + 3
*Sunday, October 2, 2011 at 3:12pm by jaz*

**alg2/trig**

how would you express cos(75 as a single fraction?
*Thursday, April 26, 2012 at 11:11pm by lisa*

**Alg2**

Find a quadratic equation with integral coefficients having roots 1/2 and -5/2.
*Wednesday, May 9, 2012 at 1:20am by Sira*

**Alg2/Trig**

Sketch a graph. see that vertex is at (3.-1) so form is (y+1) = k(x-3)^2 substitute in (2,0) to find k 1 = k (-1)^2 k = 1 so y = (x-3)^2 or y = x^2 - 6 x + 9
*Thursday, March 5, 2009 at 8:09pm by Damon*

**alg2/trig**

Wait... so it's 3 multiplied by 4? Sorry, I'm not used to reading when it's typed out.
*Wednesday, April 1, 2009 at 7:58pm by Chris*

**alg2/trig**

Use the cosine law. 4^2 = 5^2 + 8^2 - 2(5)(8)cos ß where ß is the angle opposite the side of 4
*Thursday, January 28, 2010 at 11:35pm by Reiny*

**Alg2**

How how I write the first six terms of this sequence? Please be detailed and thanks in advance :) f(n)= 3/-m
*Monday, March 12, 2012 at 1:34am by Lily*

**Alg2/Trig**

Write the log as a single function: logx + 2logy - logz
*Thursday, April 19, 2012 at 6:20pm by Alayna*

**Alg2**

Solve the system for z. 2x - y + 2z = 11 x - 2y - 3z = -5 -3x + z = -3
*Tuesday, May 8, 2012 at 1:27am by Sira*

**Alg2**

if the roots are 1/2 and -5/2, then the quadratic would have factored to (2x-1)(5x+2) = 0 expand and you are done
*Wednesday, May 9, 2012 at 1:20am by Reiny*

**Alg2**

how many ways can 5 members of the 100 member US senate be chosen to be put on a committe?
*Wednesday, November 30, 2011 at 11:20pm by Rock*

**ALG2**

no. y=k/x^2 then consider the point 1,8 8=k/1^2 k=8 y=8/x^2 if x is 2, then y=2 another way to think this out: y is 8 when x is one, so if you double x, then y must be changed by 1/4, or y=2
*Friday, December 28, 2012 at 8:20pm by bobpursley*

**alg2 check?**

At this point, since the two sides of the equation have identical values, the equation is true for ALL values of n. There is no value of n which makes the equation not true. If you want to keep going, just do what you usually do. Add 6 to both sides: 30n=30n subtract 30n from ...
*Monday, July 15, 2013 at 5:28pm by Steve*

**Alg2**

Find all the arrangements for 5 books, and multiply by two, i.e. putting the dictionary at either end.
*Sunday, December 4, 2011 at 2:24pm by MathMate*

**ALG2**

take a look in your book or online for a proof of the quadratic formula. Its derivation shows how to factor these.
*Wednesday, February 29, 2012 at 9:50am by Steve*

**Alg2**

Find the value of c that will make the expression x^2-15x+c a perfect square. would c = 56.25 ?
*Monday, May 7, 2012 at 3:26am by Cyn*

**MATH - **

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
*Sunday, June 9, 2013 at 2:52pm by Fort*

**Math Help**

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
*Sunday, June 9, 2013 at 11:51pm by Mary*

**alg2 check?**

solve 3(8x-2)=46-2(12x+1) 24x-6=46-24x+2 24x-6=48-24x 48x-6=48 48x=42 x=42/48 or 7/8 what where the two mistakes made in the problem? I said the 46 going to 48 and subtracting the 6 from 48?
*Thursday, July 18, 2013 at 1:19pm by tyneisha*

**alg2/trig**

what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.
*Monday, January 23, 2012 at 9:29pm by lisa*

**alg2/trig**

Quadratic equation has two real equals roots, if Discrininant Ä = 0 Ä = greek letter Delta
*Thursday, April 5, 2012 at 10:07pm by Bosnian*

**alg2/trig**

If 4x^2+9=kx, what value of k will produce equal roots? the answer is 12 but i dont understand how you get it, please help!
*Thursday, April 5, 2012 at 10:07pm by lisa*

**alg2**

run this program given in the lesson to find factors of a) 105, b) 197, and c) 7128 Describe in words the function of f(x) =x - [x]. x>0
*Thursday, September 11, 2008 at 11:44pm by jerson*

**Alg2**

i am realy lost as to how to do this alg 2 problem: find the two real-number solutions of each equation: x^2=100 Can you please explain how to do it? Thanks!:)
*Monday, February 2, 2009 at 8:13pm by amaya*

**alg2/trig**

any time there is a fraction, the function is undefined when the denominator is zero. None of the choices is defined for all real numbers.
*Sunday, October 2, 2011 at 3:12pm by Steve*

**ALG2 **

If Y varies inversely as X^2, determine what Y would be if X = 2 and another point on the equation is (1,8). The answer I got was y=1/2^2=1/4 I'm not sure I worked this out correctly, is this correct?
*Friday, December 28, 2012 at 8:20pm by Yvette B.*

**Alg2**

If you can express the amount as y = a*2^(-t/n) then the half-life is n years. That is, as t increases by n, the amount is multiplied by 1/2 ae^-.0856t = a*2^(-t/n) divide by a and take logs -.0856t = -t/n ln 2 divide by t .0856 = ln2/n n = ln2/.0856 = .6931/.0856 = 8.1 So, ...
*Thursday, December 8, 2011 at 7:37pm by Steve*

**Alg2**

no,,,, 25(1.0325)^15 = 25(1.61566.. =40.39
*Tuesday, December 13, 2011 at 8:17pm by Reiny*

**alg2/trig**

The salary for any given year n is salary = 30000 + 5000n
*Wednesday, February 1, 2012 at 9:05pm by Reiny*

**ALG2**

x2 + bx + c and ax2 + bx + c could you factor this and explain it.
*Wednesday, February 29, 2012 at 9:50am by KAYG*

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