Sunday

August 2, 2015

August 2, 2015

Number of results: 470

**Precalc**

Hello, good afternoon. I need help with my precalc hw. we are learning about finding zeros I dont which method I should use for this problem: if i is a zero of x^3+3x^2+ix+(4+i) what do i do? synthetic divison? or long division? when i did long division i got a werid ...
*October 14, 2008 by Samya*

**precalc**

1. Solve |2x + 5|< 9
*November 3, 2009 by kim*

**PreCalc**

please h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 4 8 7 4 9 0
*December 10, 2009 by Joe*

**precalc**

(4^x2)^2 mulipled by 1/(4^5x)=64
*October 19, 2010 by sarah*

**Precalc**

2^(x) = 0 what should x be to get 0?
*January 27, 2011 by Amy*

**precalc**

solve x/x^2-4 - 1/x+2=2
*December 7, 2011 by 95*

**PRECALC**

6∑6(2^K-1) K=1
*February 20, 2013 by ally*

**MATH**

WHAT IS PRECALC
*December 4, 2013 by ASHLEY*

**PreCalc**

Solve for the variable m^2 + 2m +3 > = 0
*December 12, 2007 by LT*

**precalc**

what is the domain and range of -4 + 3^(x+2)
*July 30, 2008 by Jack*

**precalc**

how do u do evaluateL cos135
*December 7, 2008 by nadine*

**precalc**

How do you graph abs(y)=x
*July 24, 2009 by annemarie*

**PreCalc**

log base 5 (75)
*October 4, 2010 by aaaa*

**sophmore Precalc Please Help!!**

(e^x + e^-x)/2=1
*October 17, 2010 by KATELIN*

**precalc**

find where f(x)<0 and f(x)>0 f(x)=xlnx-2x
*October 18, 2010 by emily*

**Precalc**

How do adjM work?
*March 16, 2011 by Tory*

**precalc**

1/x is less than or equal to 4/x^3
*February 5, 2012 by Declan*

**precalc**

how to graph y=5sin[3[2-pi/6]]+2
*October 1, 2012 by Deb*

**Precalc**

how do I graph this function? x^2-xy+2x-1=0
*October 4, 2012 by Matt*

**Precalc**

how do you find x in 7-=log(x/10^-12)
*November 19, 2012 by Rebekah*

**precalc**

partial decomposition 12/x(x-2)(x+3)
*May 22, 2013 by jinie*

**PreCalc**

How do i solve for the variable 3x= sqrt5x+1
*December 12, 2007 by LT*

**PreCalc**

write in interval notation 2x^2 < or = 9x+5
*December 12, 2007 by LT*

**precalc**

what are the slopes of the asymptotes of the hyperbola: (x^2)/9 - (y^2)/4 = 1
*February 24, 2008 by Kristen*

**precalc**

Solve sinx+cosx=0 Thanks!
*March 6, 2008 by Andrea*

**precalc**

how do u solve for this? sqrt(-10i+12)
*October 14, 2008 by Samya*

**precalc**

given e^x=1+x+x^2/2!+x^3/3!+... how do you prove that lim((e^(h)-1)/h)=1 as x->0
*February 25, 2009 by sam*

**PreCalc**

How do you find the amplitude of y=7/8sin[(-8ð/5)x]
*May 20, 2009 by Maggie*

**Precalc**

Can you simplify radical 253?
*October 9, 2009 by MUFFY*

**precalc**

Let f(x) be linear f(16)=-5 f(20)= -17 Find f(x) Calculate f(12)
*April 25, 2010 by Reema*

**precalc**

(3x)^2/(27^x2)=1 I have to find the solution
*October 18, 2010 by pauly*

**PreCalc**

Simplify the ratio of factorials. (n+2)!/(n-1)!
*November 10, 2010 by B*

**precalc**

find domain of f(x) = 15/sqrt(x+6)
*December 18, 2010 by mo*

**Precalc**

(2^(x))(5)=10^(x) steps too please how to solve
*February 2, 2011 by Amy~*

**precalc**

Find the equation of the parabola: x^(2)+4x = y-8
*April 7, 2011 by Haley*

**precalc**

solve the system of equations: x^(2)+y^(2) = 12 xy = -4
*April 7, 2011 by Haley*

**precalc**

How do you solve log5 sqrt125?
*April 26, 2011 by Ashley *

**Precalc**

Find (-1+i)^1/3 list steps
*December 7, 2011 by 95*

**precalc**

What is the directrix and focus of the equation 1/16(y+4)^2=x-3
*December 16, 2011 by 95*

**precalc**

what is the directrix and focus of the equation 1/16(y+4)^2=x-3
*December 16, 2011 by 95*

**precalc**

what is the directrix and focus of the equation 1/16(y+4)^2=x-3
*December 16, 2011 by 95*

**precalc!!!!!**

Use long division : (a^3-b^3)/ (a-b)
*March 18, 2012 by ALISON*

**Precalc**

Find a4 for the arithmetic series with s4=-36 and a1=9
*July 21, 2012 by Wren*

**Math**

Precalc (1+i)^3 and the cube root of 8i
*March 18, 2013 by Crystal*

**precalc**

Find the focus and directrix of y=4x^2
*April 18, 2015 by moooose*

**Precalc**

if you have how do u do 2^2x - 2^x - 6 =0 (calc)how do u do it? using logs??
*January 26, 2009 by Spencer*

**precalc**

Determine whether the equation is linear in x. 5-3x=0 5=10/2 x+3=x-5
*September 14, 2009 by kate*

**PreCalc**

h t t p : / /w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 3 0 7 8 3 thats fair but can i ask why you do not perfer to use a formula?
*December 7, 2009 by Jo*

**precalc**

How do i verify: cotx = (sin2x)/(1-cos2x)
*March 13, 2010 by jill*

**precalc**

Solve log subscript4 112 = x.
*September 1, 2010 by Anonymous*

**precalc**

f(x)=Log1/3^(9x)find the domain and range.
*January 14, 2011 by madison*

**precalc**

Is sine an even or odd function?
*January 21, 2011 by lauren*

**precalc**

Find sec x if sin x = -0.6 and cos x = 0.8.
*January 21, 2011 by anna*

**Precalc**

how to solve 5(2^(3x)) = 8 Steps too please answer is ln 1.6 / 3 ln 2
*January 26, 2011 by Amy*

**Precalc**

What is the degree of the following polynomial equation? (x+9)(x-5)(x+2)=0 1. 2 2. 3 3. 4 4. 5
*February 20, 2011 by CJ*

**Precalc**

What is the upper and lower bound of sin x+2
*October 24, 2011 by Max*

**Precalc**

By appropriate calculations, show that: lim r(x)=5c^4 (x->c)
*January 18, 2012 by Grace*

**Precalc**

Evaluate Tan[(3pi-70000pi)/2]
*March 28, 2012 by Megan*

**precalc**

(cos3x)^4+(sin3x)^4=cos(g(x)) find g(x)
*April 21, 2013 by dylan*

**precalc**

(cos3x)^4+(sin3x)^4=cos(g(x)) find g(x)
*April 21, 2013 by dylan*

**precalc**

(cos3x)^4+(sin3x)^4=cos(g(x)) find g(x)
*April 21, 2013 by dylan*

**Precalc**

what is the inverse tangent of negative root3/3
*June 16, 2013 by Anonymous*

**Math/precalc**

What is the period and amplitude of y=3tan(2/3x-pi/6)? Thanks!
*March 28, 2014 by Emily*

**precalc**

verify the identity ((cosxcotx)/(1-sinx))-1=cscx
*April 1, 2008 by billy bob j*

**Precalc: Logarithms**

Solve for x? xln(x) + 1 > x + ln(x) e^1/x > 1 Any help would be appreciated. THANK YOU!
*August 3, 2008 by Joe*

**Precalc**

how do u find the zeros of x^3+13x^2-16x+8? w/o a calc?
*October 29, 2008 by Kate*

**Precalc.**

solve the equation on the interval [0,2pi) sin^2x=1
*March 19, 2010 by Anonymous*

**Precalc**

I think it was skiped can you post resposne in this question h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 9 8 2 9 1 7 1
*March 28, 2010 by Kate*

**Precalc**

Find the vertex and focus of the parabola. (x^2)-(24y) = 0
*December 3, 2010 by barb*

**Precalc**

There's f(x) = (2x+3)/(x+4) and g(x) = (4x-3)/(2-x) Solve for x in f(g(x)) I tried this but I could not end up with the answer being x
*January 6, 2011 by Anonymous*

**Precalc**

how to solve for x: 500e^(0.3x) = 600 Steps please.
*January 26, 2011 by Amy*

**Precalc (complete the squares)**

(2x+1)^2 +4=0 solve the equation. help please :(
*November 11, 2011 by Cindy*

**precalc**

Use Sigma Notation to write the sum [10-(1/10)^2]+[10-(2/10)^2]+[10-(3/10)^2]+[10-(4/10)^2]
*December 4, 2011 by Alex*

**precalc**

solve 5^y=4^y+3.Round your answer to the nearest tenth.
*January 14, 2012 by 95*

**precalc**

f(x) =pi/2-x g(x)= 5sinx/8+cos x find (gof)(pi/2) and (fof)(pi/2)
*January 24, 2012 by juli*

**Precalc-Factoring**

I am so confused. How do I factor: 35x^2 - 46x + 15
*August 27, 2012 by Daquasianisha*

**Precalc**

Prove: sin2x*sinx/2cosx + cos^2 0 = 1
*November 8, 2013 by S*

**Precalc**

Solve the following equation for x in terms of ln and e. (2e^3)-6-(16e^-x)=0
*March 3, 2014 by Aly*

**Precalc**

(e^x - 1 )/(x^2 - 1) < 0 Any way to get started? I'd appreciate any help. And also, xlnx + 1 > x + lnx
*August 5, 2008 by Joe*

**Precalc**

I dont know if i did this correctly is(x-1) a factor of 17x^10+16x^6+1 its no.. right?
*October 19, 2008 by Vi*

**Trig/PreCalc**

Factor the Polynomial completely: 10x^4y-20x^2y^2
*December 29, 2008 by Nuna*

**precalc**

express the complex number in standard form(that is like a+bi) 1/2+i 2+i/2-i
*October 31, 2009 by kim*

**trig/PreCalc**

Find all real zeros of the function y = -7 + 4
*March 23, 2010 by jodi*

**Precalc**

Find the smallest positive answer to the equation: sin(2x)=1
*April 7, 2010 by Lori*

**precalc**

Using the formula T= 15(x+y/60+z/3600), give the equivalent degree for 3:30 am
*August 28, 2010 by Anonymous*

**Math- Precalc**

could someone please help me solve this problem... e^x - 12e^(-x) - 1
*November 15, 2010 by Alex*

**precalc**

Find the vector v with the given magnitude and the same direction as u. ||v||=7, u=3i+4j
*March 13, 2011 by Christine*

**precalc**

How do I calculate the number of images in a particular iteration for a transformation?
*March 13, 2011 by Carly*

**precalc**

find two functions f and g such that (f+g)(x) = 5 and domain of f + g is [0, infinity)
*September 27, 2011 by m*

**precalc**

Write the partial fraction decomposition of the rational expression. 6x^2+1/x^2(x-1)^2
*December 4, 2011 by Robert*

**Precalc**

Write a 3 x 4 pre-image matrix for a kite with the points (2,4) (4,5) (6,4) and (4,1)
*January 19, 2012 by Grace*

**precalc**

find the solution of the equation in [0,2pi) cos^2x-sinxcosx=0
*January 24, 2012 by juli*

**precalc graph**

If it says to identify 5 critical points what would that be?
*October 1, 2012 by Deb*

**Precalc**

rewrite sinxtanx/(cosx+1) as an expression that doesn't involve a fraction.
*October 23, 2012 by Sophia*

**precalc**

For the equation 2x 3 - 11x 2 + 12x + 9 = 0, the root 3 has a multiplicity of _____.
*November 27, 2012 by brenn*

**Precalc **

Write the complex number z = −6 in polar form
*February 23, 2013 by Jane*

**precalc**

simplify: (x^-2 - y^-2) / (x^-1 - y^-1) i know you have to get rid of the negative powers, but i cant figure out how, any help?
*February 16, 2008 by Devon*

**Precalc**

What annual rate of interest is required to double an investment in 3 years?
*January 12, 2011 by Amy*

**precalc**

Rewrite 3y^2 + 6y + 108x - 969=0 in standard form, show work.
*December 16, 2011 by 95*

**Precalc HELP PLEASE**

verify 1-sintheta * costheta * tantheta = cos^2theta
*January 23, 2012 by valeria *