Number of results: 20,713

**Pre-Calculus/Calculus**

I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...

*July 1, 2008 by Molly*

**Pre Calculus**

Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)

*November 15, 2009 by Pre Calculus*

**Finite Math**

Fifty percent of students enrolled in calculus class have previously taken pre-calculus. Thirty percent of these students received an A for the calculus class, whereas twenty percent of the other students received an A for calculus. Find the probability that a student selected...

*June 10, 2015 by Nikole*

**Pre-Calculus**

I am in Honors Pre-Calculus and am having a hard time understanding my teacher. I feel so stupid. Does anyone have any suggestions on a website that might give me some insight into what I am doing wrong? Thanks!

*October 7, 2008 by Jill*

**Pre-Calculus**

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)

*September 17, 2011 by Cristina*

**Pre-Calculus**

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)

*September 17, 2011 by Cristina*

**pre-ap pre calculus**

To solve an equation by finding x-intercepts, Cynthia graphed the function y=x^3-5x+|2x-3| Give several possibilities for the original equation. How do I do it and what's the answer? Thanks

*September 8, 2009 by Anonymous*

**Pre Calculus 12**

Im going over my pre calculus 12 exam, and I need help with one question from the chapter Transformations of graphs and stuff. Combining Transformations 2y = f(5x-10)+8 The original points are (4,6) and the new points I got by translating it and stuff are : (14/5,20) But in ...

*January 22, 2013 by Shreya*

**Pre-Calculus**

Can you show me how to find the rectangular equation: r=2cos(theta) + 3 sin (theta) All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you

*October 3, 2011 by Leah*

**Pre-Calculus - Reiny**

Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on paint and uploaded ...

*October 17, 2012 by Shreya*

**pre calc**

A math teacher uses four algebra books, two geometry books, and three pre-calculus books for reference. In how many ways can the teacher arrange the books on the shelf if books coiver the same subject matter are kept together?

*September 25, 2011 by Katie*

**pre-calculus**

3(4^x)-2^(x+2) = -1

*May 14, 2008 by Mike*

**pre calculus**

27^8x-3=(1/81)^8x-4 x=?

*December 5, 2008 by Anonymous*

**pre calculus**

2n^1/3(n^2/3+n^-1/3)

*November 23, 2010 by sam*

**pre-calculus**

what is the F-^1 of 6/x+4

*May 22, 2011 by kelly*

**pre calculus**

(m+3)+5

*July 9, 2011 by Anonymous*

**pre calculus**

-2< x < 5 - -

*August 8, 2011 by Carus II*

**Pre-calculus**

2^(x)/(1-2^(x))=3

*December 12, 2011 by Ivan*

**pre-calculus**

(2^(4+pi))/ 2^(1+pi)

*January 29, 2013 by yukia*

**pre-calculus**

x^3e^x - 4e^x =0

*February 5, 2013 by suie*

**Pre-Calculus**

3x^2 + 8 = -4

*September 11, 2013 by Janae*

**pre calculus**

x^2-3/4x+1/8=0

*December 10, 2013 by Rose*

**pre calculus**

x^2-3x-7=0

*December 10, 2013 by Rose*

**pre calculus**

2k^2+5k-9=0

*December 10, 2013 by Rose*

**pre calculus**

2k^2+5k-9

*December 10, 2013 by Rose*

**pre calculus**

C=2 x^=8y

*July 17, 2016 by Anonymous*

**Pre Calculus**

Formula: a = b = c

*December 7, 2006 by Clarice*

**Pre Calculus**

Formula: a = b = c

*December 7, 2006 by Clarice*

**Pre calculus**

gfk

*November 5, 2007 by Anonymous*

**Pre-Calculus**

How do I find xy^-2(xy^2 - 4y^4) ??

*January 5, 2010 by Taryn*

**Pre-Calculus**

How do you factor x^3 - 64?

*February 7, 2010 by Daisy*

**pre- calculus**

simplify 3x+2y/3y

*August 12, 2010 by Tara*

**pre calculus**

if y = bX, then its inverse is

*December 17, 2010 by john*

**pre calculus**

let f(x)= -x^2 - 1. evaluate f(x)at x=6, -6

*February 18, 2011 by henry baliz*

**pre calculus**

what is the vertices of 7x^2+5y^2=35

*March 7, 2011 by akim*

**pre calculus**

what is the vertices of (x+1)^2/4+(y+2)^2/25=1 ?

*March 7, 2011 by akim*

**Pre Calculus 1**

ln(3x-1) - ln(x+2) = 2ln5

*March 29, 2011 by Laura Grace*

**Pre Calculus 1**

lnx + ln(x+3) = 2

*March 29, 2011 by Laura Grace*

**pre-calculus**

What is the domain of (x+2)/(x-2)?

*February 15, 2012 by Tiffany*

**PRE CALCULUS HELP PLEASE**

((ln(x))^1/2)/(ln(x^1/2))=6

*March 3, 2013 by jim*

**pre calculus**

2x^2+11x-21=0

*December 10, 2013 by Rose*

**pre - CALCULUS**

Let B = [-1 3 6 -3]. Find -4B. A. [-4 12 24 -12] B. [-3 1 4 -5] C. [4 -12 -24 12] D. [4 3 6 -3] b ?

*April 11, 2015 by Ciara*

**Pre-Calculus**

14cos+7=O

*November 10, 2016 by jay*

**pre calculus**

find (a)2v+u, (b)u-3v, and (c)5u-v u=<0,-4>, v=<-2,-8>

*November 26, 2016 by Anonymous*

**pre calculus**

find (a)2v+u, (b)u-3v), and (c)5u-v u=<-2,-3> v=<-1,-10>

*November 26, 2016 by Anonymous*

**pre calculus**

find (a)2v+u, (b)u-3v), and (c)5u-v. 1.u=i-j, v=6i+9j 2.u=2i+3j, v=-i-2j

*November 26, 2016 by Anonymous*

**pre calculus**

solve 2x + y = 8 4x + 2y = 16

*November 29, 2016 by Anonymous*

**Math - Studying for Pre Calc exam!**

Approximate the solutions (to three decimal places) of the given equation in the interval (- pi/2, pi/2) 6 sin 2x − 8 cos x + 9 sin x = 6 Can you help with this please? I am studying for my Pre Calculus 1 exam and am stuck on this question...! The answer options are a. x...

*July 12, 2016 by Lottie*

**Pre-Calculus**

How do I find f(g(x)) when there is a radical?

*October 1, 2007 by Courtney*

**pre calculus**

x^2+y ^2+ 4x + 6y - 12 = 0 how do i find the domain?

*March 26, 2010 by mmm*

**pre calculus**

simplify sin(2 pi/3+x)

*November 18, 2010 by Eli*

**Pre-Calculus**

2secx= 3cscx

*March 31, 2011 by Erika*

**Pre-calculus**

x-2/x2-1 This equation is a function or not?

*June 27, 2011 by Keila*

**Pre Calculus**

FACTOR COMPLETELY 1) x^8-y^8

*September 13, 2011 by Libby*

**pre-calculus**

tan(1/2)cos^-1(9/10)

*April 22, 2012 by Kim*

**Pre-Calculus**

is f(x)=9x^(5/3) a power function?

*July 25, 2012 by Assad*

**pre calculus**

are you an online tutor

*September 16, 2012 by reese*

**Pre-Calculus**

Is the period of f(x) = 2cos(3x - ð) 2ð/3?

*November 24, 2012 by Peter*

**Pre-calculus**

1) What is the equivalent of this? -5x(2x+7y)+7xy-4x(y+3)

*March 23, 2013 by Isis*

**Pre-Calculus**

How to find domain of: y = -3 + ãx+6

*September 3, 2013 by Dara*

**Pre-Calculus**

y= ((2-3x^(1/x))/(2+3x^(1/x)) Is the horizontal asymptote y= 1 or y= -1?

*December 18, 2013 by Ann*

**Math (pre calculus)**

ax+b/cx+d=2 solve for x

*February 20, 2014 by Danielle*

**Pre-Calculus/Trigonometry**

for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)

*September 30, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

For f(x)= 1/(x-5) and g(x)= x^2+2, find: a. (f o g)(x) b. (g o f)(6)

*September 30, 2014 by Anonymous*

**pre-calculus**

6cos^2(x)-5cos(x)-6

*December 4, 2014 by Ashleigh*

**college pre-calculus**

if 1-1/x=2-2/x, then 3-3/x=? A. -3 B. -1/3 C. 0 D. 1/3 E. 3 idek how to do it?

*January 11, 2015 by Derek*

**Pre-Calculus**

find the inverse of g(x)=(x+7)^3+4

*February 3, 2015 by Drue*

**Pre-Calculus**

What are the holes of the function f(x) = (x^2 + 3x - 4)/(x^2 + 9x + 20)?

*February 19, 2016 by Anonymous*

**Pre-Calculus**

How do I find the domain of K(x) = x(32 - 2x)^2?

*June 2, 2016 by Anonymous*

**Pre-Calculus**

Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)

*November 5, 2016 by Iris*

**Pre-Calculus**

What is the absolute value of: 3 - 8i? A. 9 B. 64 C. √55 D. √73

*November 7, 2016 by Sade*

**pre calculus**

Can you explain how to find (u • v)(u + v) when u <-1, 7> and v <4, -3>

*November 23, 2016 by Anonymous*

**Pre-Calculus 12**

2x^3 - 13x^2 + 32x - 13 = 0

*March 7, 2017 by Eayan*

**Pre-Calculus/Trivia**

csc(theta)= 1/x sec(theta)= 1/ sqrt(1-x^2) cot(theta)= sqrt(1-x^2)/x What are these equations used for in real life matters or in regards to calculus? Can't seem to find the answer anywhere :/

*February 20, 2012 by Maria*

**pre- calculus**

how do you find the root(s) of the equation x^2+3x-4=0

*October 13, 2007 by Anonymous*

**Pre-calculus**

Describe the end behavior of f(x)=2x^4-5x+1.

*August 23, 2008 by Lucy*

**Pre Calculus**

log(log10^10,000)

*July 25, 2009 by Shellie*

**pre-calculus**

Solve this Function: (3x-7)^2 (x^2-9x+18) ---------------------- x (x^2-12x+40) (x^16)

*April 26, 2010 by Treema*

**pre calculus**

How do you simplify cos ((pi)/2) - feta?

*May 10, 2010 by gisele*

**pre calculus**

f(x)= a+tan(bx) fina a and b f(0)= 5 f(pi/8)=1/sq root of 3 +5

*November 14, 2010 by Caitlyn*

**Pre-Calculus**

For what values of x is it true that |sin(x)-x| < 0.01?

*January 17, 2011 by Sara*

**pre calculus**

cube roots of 64i?

*May 20, 2011 by joe*

**Pre Calculus**

Logarithms Solve the equation for x 1-ln(3x+2)=0

*October 21, 2011 by Josh*

**PRE CALCULUS**

8-12SIN^2X=4COS^2X SOLVE FOR X

*December 12, 2011 by NN*

**pre-calculus**

use gauss-jordan x+2y=5 2x+y=-2

*March 28, 2012 by Anonymous*

**Pre-Calculus**

Find the inverse of matrix A. .6 -2 A= 6 -18

*May 24, 2012 by Sangita*

**pre calculus**

How do you solve c + 70 + 12c = 196 - 5c

*September 19, 2012 by elise*

**pre-calculus**

solve the equation (5/2)^2=(125/8) x=

*October 6, 2012 by ladybug*

**pre-calculus**

solve the equation 5^5x+1=125

*October 6, 2012 by ladybug*

**pre-calculus**

find the functions f and g so that Fog = H. H(x)=/2x+1\

*October 9, 2012 by ladybug*

**Pre calculus**

Tanx + sinxsecx/ cscxtanx

*February 10, 2013 by Kristen*

**Pre-Calculus**

Find the value of the parameter: x = 3t y = t^2 + 5 t = 2

*October 20, 2013 by Joy*

**Pre-Calculus**

Solve sin (pi/4(x-6))=0.5, 0<x<360

*January 11, 2014 by Hanu*

**Pre-Calculus**

Write Parametric equations of -3x+1/2y=2

*February 28, 2014 by Alexis*

**Pre-Calculus**

Find N if log base 6 (6^7.8)=N

*March 2, 2014 by Aly*

**pre calculus**

solve nonlinear inequality x^4 > x^2

*March 3, 2014 by Danielle*

**Pre-Calculus**

Write Parametric equations of -3x+1/2y=2

*March 3, 2014 by Alexis*

**Pre Calculus**

e^-x sqrt(3e^2x -5/4) = e^x No idea how to approach this.

*October 1, 2014 by Anonymous*

**Pre-Calculus**

Identify the slope of the asymptotes of 5(y -1)2 - 20(x - 1)2 =64. A) 2 and -2 B) 64 and -64 C) 5 and -5 D) 0.25 and -0.25

*November 12, 2014 by TeeKay*

**Pre-Calculus**

If r = 1, will a sequence be convergent or divergent?

*February 15, 2015 by Lucina*