Thursday

April 24, 2014

April 24, 2014

Number of results: 3,222

**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**

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

**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**

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

**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**

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*

**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**

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**

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 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**

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**

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**

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**

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*

**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**

why is (-125)^-2/3 1/25. why isn't it -1/25?
*Wednesday, March 12, 2008 at 10:31am by Abby*

**alg2**

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

**Alg2**

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

**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**

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!**

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

**alg2**

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

**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**

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

**ALG2**

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

**Alg2**

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

**Math(alg2)**

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

**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!**

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

**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**

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**

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

**Alg2**

Solve the equation -5e^-x + 9 = 6 I subtracted 9 to both sides and got: -5e^-x= -3 < this is where I'm stuck at.
*Thursday, February 2, 2012 at 1:53am by Yolie*

**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**

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**

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**

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*

**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 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**

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 **

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.*

**precalc**

Suppose that z1=6-8i. Find: A. The Trig Form of the complex number z1, where your theta is in degrees. B. The Trig form of z1*z2, where z2=5[cos(60degrees)+isin(60degrees)] C. The Trig Form of (z1)^4
*Monday, December 5, 2011 at 1:34pm by Joshua*

**math**

could someone please refresh my memory of the basic trig functions? ex) cos^2 + sin^2 = 1? That is a trig identity. http://www.sosmath.com/trig/Trig5/trig5/trig5.html
*Thursday, April 12, 2007 at 10:18pm by raychael*

**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**

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**

How many ways can six different books be arranged on a shelf if one of the books is a dictionary and it must be on an end?
*Sunday, December 4, 2011 at 2:24pm by Rock*

**Alg2**

If the sum of a geometric series is 781, the number of terms is 5, the common ratio is 5 and the last term is 625, what is the first term a1?
*Sunday, January 15, 2012 at 7:19pm by Embraced*

**ALG2! WORD PROBLEM!**

define a variable and write an inequality for each problem.then solve. Nineteen more than a number is less than 42.
*Thursday, October 4, 2012 at 8:48pm by tyneisha*

**alg2 help**

[4x/ 3y]^2 it should look like 4x over 3y in parenthesis ^2 at the top right. please take me step by step I got 1.6
*Sunday, July 14, 2013 at 8:55pm 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**

Zeus Industries bought a computer for $2500. It is expected to depreciate at a rate of 20% per year. What will the value of the computer be in 2 years?
*Tuesday, December 6, 2011 at 9:48pm by Rock*

**trig**

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4
*Monday, April 21, 2008 at 12:33am by Joshua*

**trig**

What is the shift along x of the following trig functions? y = (3sinx/2) + 4 y = -2sin(x)-4 y = sin(-3x + 3)
*Monday, April 21, 2008 at 12:34am by Amandeep*

**trig**

express the trig. ratios sinA,secA n tanA in terms of cotA.
*Saturday, May 7, 2011 at 5:49am by Anonymous*

**trig**

How do you solve cos(2arcsin 1/4) using inverse trig. functions??!! PLEASE HELP ME!
*Monday, May 9, 2011 at 11:20am by Tor*

**Trig**

Find (if possible) the trig function of the quadrant angle. sec 3pi/2
*Monday, June 6, 2011 at 4:00pm by Master chief*

**trig**

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?
*Monday, April 21, 2008 at 8:53pm by Priya*

**trig**

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?
*Tuesday, April 22, 2008 at 12:03am by Chaitanya*

**trig**

how do i do this? give the signs of the six trig functions for each angle: 74 degrees?
*Wednesday, December 3, 2008 at 6:59pm by Tay*

**trig**

simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)
*Sunday, March 14, 2010 at 1:14pm by hilde*

**trig**

find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3
*Wednesday, September 14, 2011 at 10:38pm by karen*

**trig**

use the unit circle to find the exact value for all the trig functions of è=2ð/3.
*Monday, February 1, 2010 at 9:54pm by Anonymous*

**Precalculus**

How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?
*Saturday, August 6, 2011 at 5:39pm by Jess*

**Trig**

find the exact values of the six trig functions of angle... sin(-315degrees) how do i do this?
*Thursday, September 1, 2011 at 9:16pm by ALISON*

**trig**

I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx
*Thursday, January 19, 2012 at 8:45am by Claire*

**trig**

I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx
*Thursday, January 19, 2012 at 8:45am by Claire*

**Trig**

Does anybody know a good website that will hlp me with finding the six trig functions of a point NOT on the unit cricle?
*Wednesday, September 16, 2009 at 7:59pm by Anonymous*

**trig**

find the 5 other trig functions if cos(theta) = square root of 2/2 and cotangent is less than 0
*Wednesday, June 9, 2010 at 7:04pm by kelly*

**trig**

what is the exact value of 7pi for all trig func.?
*Monday, February 1, 2010 at 10:23pm by claire*

**Trig**

Find (if possible) the trig function of the quadrant angle.
*Monday, June 6, 2011 at 3:59pm by Master chief*

**trig**

write a product of two trig functions that equals 1.
*Sunday, November 6, 2011 at 9:38pm by Dani*

**Trig**

Solve the following trig equation 2cos(x-π/6)=1
*Tuesday, January 31, 2012 at 2:51am by Matt*

**Trig **

csc thea= -2, quadrant 4. what are the six trig functions?
*Monday, May 6, 2013 at 4:17pm by Shay*

**trig**

TRIG Identities, Gr. 12: Prove: cot4x=1-tan^2x/2tan2x
*Thursday, May 23, 2013 at 2:56pm by Josh*

**Alg2**

Radioactive iodine is used to determine the health of the thyroid gland. It decays according to the equation y=ae -0.0856t where t is in days. Find the half-life of this substance. Round to the tenths place.
*Tuesday, December 6, 2011 at 9:50pm by Rock*

**Alg2**

Radioactive iodine is used to determine the health of the thyroid gland. It decays according to the equation y=ae -0.0856t where t is in days. Find the half-life of this substance. Round to the tenths place.
*Thursday, December 8, 2011 at 7:37pm by Rock*

**trig**

What is the shift along x of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you
*Monday, April 21, 2008 at 8:51pm by Priya*

**trig**

What is the shift along y of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you
*Monday, April 21, 2008 at 8:52pm by Priya*

**trig**

Let Q be an acute angle such that sinQ=.6. Find the values of the following using Trig Identities: cosQ and tanQ
*Tuesday, July 27, 2010 at 10:06pm by student*

**Trig**

Use Trig identities to verify that sec^4(x)-tan^4(x)=1+2tan^2(x), Only work with one side of the equation
*Tuesday, March 1, 2011 at 5:23pm by Anonymus*

**trig**

how to i find the six trig values for (7pi/3)
*Tuesday, January 12, 2010 at 9:50pm by Rak*

**trig**

what's the single trig. function of cos6xcosx-sin6xsinx
*Thursday, May 17, 2012 at 4:44pm by MIK*

**Alg2**

A piece of wood discovered in an archaeological dig was found to have lost 62% of it's carbon-14. Carbon-14 has a half-life of 5630 years. Determine it's age.
*Tuesday, June 1, 2010 at 9:51pm by Cal*

**trig**

Suppose that q is in standard position and the given point is on the terminal side of q. Give the exact value of the indicated trig function for q.
*Monday, February 21, 2011 at 11:50am by Anonymous*

**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*

**Trig**

The next two steps in solving this trig identity question are ??? 1/csctheta x costheta x sintheta x sectheta = sinsqtheta arghhh need help please
*Saturday, December 17, 2011 at 7:43pm by Don*

**trig**

What is the range of the trig function sin(-3x+3)?
*Monday, April 21, 2008 at 12:35am by Chaitanya*

**Trig**

Trig Identity. 1-sin^2x/1-cosx
*Sunday, May 15, 2011 at 5:56pm by Jill*

**trig**

write 2+2 squareroot of 3i in trig form.
*Thursday, May 17, 2012 at 5:01pm by ky*

**Alg2**

Help...Please... You buy a commemorative coin for $25. The value of the coin increases 3.25% per year. How much will the coin be worth in 15 years? Round to the nearest cent.
*Monday, December 12, 2011 at 10:25pm by Rock*

**Alg2**

Please Help... You buy a commemorative coin for $25. The value of the coin increases 3.25% per year. How much will the coin be worth in 15 years? Round to the nearest cent.
*Tuesday, December 13, 2011 at 8:17pm by Rock*

**trig 26**

simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta) - tan(theta)*cos(theta)+ cos(pi/2 - theta) 3. (sec y - tan y)(sec y + tan y)/ sec y combine fractions and simplify to a...
*Sunday, March 14, 2010 at 1:25pm by hilde*

**Math- gr.12 Trig. **

Hi, could someone explain to me how to use a counterexample in trig to prove whether something is either an identity or equation? For ex. how would you do that with this question? sec^2x-tan^2x= cos x
*Monday, January 11, 2010 at 7:15pm by May*

**trig**

Getting ready for trig semester finals. Can't figure out how they are simplifying these equations. (these are the review not actual test) tanx-sqr3=2tanx and 2sin^2+sinx=0
*Sunday, December 11, 2011 at 4:49pm by Josh*

**Alg2**

A geometric sequence has a common ratio of 4. If the fifth term in the sequence is 2256, what is the second term?
*Wednesday, May 9, 2012 at 1:55am by Anon*

**ALG2! WORD PROBLEM!**

define a variable and write an inequality for each problem.then solve one half of a number is more than 6 less than the same number.
*Thursday, October 4, 2012 at 10:12pm by tyneisha*

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