Friday

April 18, 2014

April 18, 2014

Number of results: 7,298

**Alg2/Trig**

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

**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*

**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/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/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/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/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/Trig**

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

**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/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/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/trig**

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

**alg2/trig**

Permutations: 5! Permutations with beginning consonants: 3*4!
*Wednesday, April 1, 2009 at 7:58pm by bobpursley*

**alg2\trig**

amount = 300(2)^n , where n is the number of days. so on the nth day you would have 300(2)^n
*Tuesday, January 31, 2012 at 8:09pm by Reiny*

**alg2/trig**

To the nearest minute, what is the approximate size of the smallest angle of a triangle whose sides are 4,5, and 8? How do I find the angle?
*Thursday, January 28, 2010 at 11:35pm by Judy*

**alg2/trig**

how much money would you earn in the fifth year? would you just plug in 5 into n to get your answer?
*Wednesday, February 1, 2012 at 9:05pm by jessica*

**Alg2/Trig**

no, that is wishful thinking. csc(u-v) = 1/sin(u-v) so work out the sin(u-v) according to your formula, the take the reciprocal of your final fraction.
*Thursday, June 4, 2009 at 11:23pm by Reiny*

**Alg2/Trig**

How would I go about solving this equation algebraically? Find the equation of the parabola y=ax^2 + bx+c that passes through the given points. (2,0) (3,-1) (4,0) Thanks.
*Thursday, March 5, 2009 at 8:09pm by Chris*

**Alg2/Trig**

Okay, I worked sin(u-v) out and I got 33/65. Would I then flip it over and get 65/33 as my final answer?
*Thursday, June 4, 2009 at 11:23pm by Vincent*

**alg2/trig**

1)3x^2-12x-21 solve by completing the square in simplest radical form 2) (1/x+3)-(2/3-x)=(4/x^2-9)find values of x 3)3/radical(3a^2b^4) is equivalent to 4) factor completely 27x^-75x^4
*Sunday, January 22, 2012 at 7:57pm by alice*

**alg2\trig**

if a3= 17 & a8=37 are terms in annarithmetic sequece, fina a1 & d. the answer is a1=9 & d=4 but i dont understand how they got the answer, please help!
*Sunday, January 29, 2012 at 9:10pm by dianela*

**alg2\trig**

a colony of 300 bacteria doubles each day. write an explicit formula to determine how many bacteria there would be on the nth day. how would you do this?
*Tuesday, January 31, 2012 at 8:09pm by jessica*

**Alg2/trig**

there are 5! ways or 120 ways to arrange the books, but only one is the correct one. so the prob. is 1/120
*Tuesday, March 24, 2009 at 8:18pm by Reiny*

**alg2/trig**

starting salary for a job is $30,000 with a guaranteed raise of $5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. please somone help!
*Wednesday, February 1, 2012 at 9:05pm by lisa *

**alg2/trig**

I got this question wrong on my test, and I have to correct it :/ How many permutations are there of all the letters in the word "TEXAS" ? The answer to this part is 120, but I have no idea on how to solve the second part without having to write it all down. *How many of these...
*Wednesday, April 1, 2009 at 7:58pm by Chris*

**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/trig**

4 x ^ 2 + 9 = kx 4 x ^ 2 - k x + 9 = 0 Quadratic equation has two real roots, if Discrininant Ä = 0 Ä = b ^ 2 - 4 * a * c In this case : a = 4 b = - k c = 9 Ä = b ^ 2 - 4 * a * c Ä = ( - k ) ^ 2 - 4 * ( 4 ) * 9 Ä = k ^ 2 - 144 = 0 k ^ 2 - 144 = 0 k ^ 2 = 144 k = sqrt ( 144 ) k...
*Thursday, April 5, 2012 at 10:07pm by Bosnian*

**Alg2/trig**

for the second: let's consider one of the ways: numbers show up: 1,2,3,4,5,6 the prob of that happening = (1/6)*(1/6)..(1/6) six times = (1/6)^6 but it did not have to come up in that order, as a matter of fact there are 6! ways for the 1,2,3,4,5,6 to come up or 720 ways so ...
*Tuesday, March 24, 2009 at 8:18pm by Reiny*

**alg2/trig**

for imaginary roots, the discriminant < 0 b^2 - 4ac < 0 4 - 4(1)(-k) < 0 4 + 4k < 0 4k < -4 k < -1 Of course we cannot pin-point the smallest number below -1 If you claim that you have the "smallest number" , I will simply subtract 1 from it, and I would have...
*Monday, January 23, 2012 at 9:29pm by Reiny*

**alg2\trig**

term(3) = a + 2d (by definition) = 17 term(8) = a + 7d = 37 a+7d = 37 a+2d = 17 subtract them 5d = 20 d = 4 sub into a + 2d=17 a + 8 = 17 d = 9
*Sunday, January 29, 2012 at 9:10pm by Reiny*

**Alg2/trig**

Hi, I hope you guys don't mind if I post a couple probability questions. A child returns a five-volume set of books to a bookshelf. The child is not able to read, and so cannot distinguish one volume from another. What is the probability that the books are shelved in the ...
*Tuesday, March 24, 2009 at 8:18pm by Chris*

**Alg2/Trig**

Find the exact value of the trigonometric function given that sin u = 5/13 and cos v = -3/5. (Both u and v are in Quadrant II.) Find csc(u-v). First of all, I drew the triangles of u and v. Also, I know the formula of sin(u-v) is sin u * cos v - cos u * sin v. However, I am ...
*Thursday, June 4, 2009 at 11:23pm by Vincent*

**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**

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**

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**

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**

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 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**

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

**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**

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

**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/Trig**

n * log ( a ) = log ( a ^ n ) log ( a ) + log ( b ) = log ( a * b ) log ( a ) - log ( b ) = log ( a / b ) 2 * log ( y ) = log ( x ^ 2 ) log( x ) + 2 * log ( y ) - log ( z ) = log ( x * y ^ 2 / z )
*Thursday, April 19, 2012 at 6:20pm by Anonymous*

**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**

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**

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

**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**

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**

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*

**correction - alg2/trig**

yes however, we have to look carefully what we mean by fifth year so for the duration of year 1 you would earn 30000 for the duration of the 2nd year you would earn 35000 for the duration of the 3rd year you would earn 40000 for the duration of the 4th year you would earn ...
*Wednesday, February 1, 2012 at 9:05pm by Reiny*

**alg2/trig**

im assuming oyu saying cos75 degree as a simple fraction; cos(75)=cos(45+30) recall the formula cos(a+b)=cos a cosb- sin a sin b cos(45+30)=cos(30)sin(45)- sin(30)sin(45) cos(45+30)=((sqrt(3))/2)((sqrt(2))/2)-… cos(45+30) =(sqrt(6)- sqrt(2))/4
*Thursday, April 26, 2012 at 11:11pm by visoth*

**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?**

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**

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*

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