Friday

October 9, 2015
Number of results: 18,379

**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/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*

**Honors Pre-Calculus**

The prompt says "Graph each function. Determine the interval[s] for which the function is increasing and the interval[s] for which the function is decreasing." The problems that are given in this prompt are: 1. y= x^3+3x^2-9x 2. f(x)=1/(x+1)-4 3. g(x)=(x^2+5)/(x-2) I need mega...
*September 4, 2012 by Jessica Miller*

**Honors Pre Calculus**

Verify the trigonometric identity:￼ ￼(1+sin x)/ (1-sinx)=￼(1+sin x)/[cos x] Hint: [cos x] means the absolute value of cos x
*September 3, 2014 by Morgan *

**Honors Pre Calculus**

Verify the trigonometric identity:￼ ￼(1+sin x)/ (1-sinx)^2=￼(1+sin x)/[cos x] Hint: [cos x] means the absolute value of cos x
*September 3, 2014 by Morgan *

**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*

**Honors Pre Calculus**

Tony visits the local fair and sees one of the rides, the ferris wheel. The ferris wheel has a diameter of 50 feet and is on a platform of 4 feet. If it takes 12 seconds to make one full revolution, what is the equation of the height of a person on the ferris wheel at any time t?
*September 3, 2014 by Morgan *

**Honors Pre-Calculus**

The latitude of Durham, North Carolina is 36 degrees North. About how far from Durham is the North Pole? Use 3963 miles for the radius of the Earth. I believe there is a formula of s=r times the feta angle, but you may have to convert the degrees to radians. I'm not sure what ...
*September 24, 2007 by Anonymous*

**Honors Pre-Calculus**

You are traveling in a car toward a certain mountain at a speed of 80km/hr. The apparent size of the mountain is .5degrees. Fifteen minutes later the same mountain has an apparent size of 1 degree. About how tall is the mountain? I believe you must convert the degrees to ...
*September 17, 2007 by Anonymous*

**algebra honors**

I was placed into algebra honors instead of advanced math.. I am in 7th grade.. I have to maintain an 80% for the entire year or go to virtual school all summer.. My question is: Is there a special technique, formula, or very useful site that might help me grasp the concepts ...
*October 5, 2010 by Jarrad*

**Honors PRE CALCULUS**

Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity coefficient, and m is the ...
*November 16, 2010 by Matt*

**Honors PRE CALCULUS**

Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity coefficient, and m is the ...
*November 16, 2010 by Matt*

**Probabilities**

A team has 10 players named A, B, C, ... . Before each game an oŽensive captain, a defensive captain, and a water-boy are determined by chance. No one may have more than one of these honors per game. The probability the C and D both win honors for the sixth game is closest to...
*May 1, 2009 by Andrey L*

**Honors Pre-Calculus**

It is known that when a car with wheels of radius 14 in. is driven at 35 mph, the wheels turn at an approximate rate of 420 revoulutions for minute. Show how to obtain this rate of turn. If you ride a bicycle a distance of 5 miles in 15 minutes at a constant speed and if the ...
*September 11, 2007 by Anonymous*

**Honors Pre-Cal**

We're reviewing and I forgot how to do this. Given y=x2-4+3 (x2 is x squared) a)write in standard from b)find vertex c)find equation of the axis of symmetry d)find the x-intercepts e)find the y-intercept
*October 10, 2010 by Helen*

**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*

**Honors Pre- AlgebraMath**

Winona needs to average 5.8 points from 14 judges to win the competition. The mean scores from 13 judges were 5.9. What is the lowest score she can get from the fourteenth judge and still win?
*December 1, 2014 by Math is Hard*

**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*

**Question **

Do i really have to be in AP or IB classes in order to get into Yale School of Arts or no don't worry you don't have to take AP or IB but only if you are doing very well in school but you still have to be in honors like regular honors or regents.
*December 31, 2011 by Laruen *

**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*

**Honors Application **

I am filling out an Honors application for English/History and one of the questions asked why do I wish to take this course.. any ideas? Thanks My ideas are: I want want to take this course because I want to take a class that is a bit more advanced than regular classes.
*February 24, 2013 by Chris *

**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*

**HELP!**

Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year taking AP.
*April 14, 2014 by Erika *

**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**

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 - 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, dont know where to go abouts from here: I did it on paint and uploaded it...
*October 17, 2012 by Shreya*

**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 - đ) 2đ/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 + ăx+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*

**English II honors**

What do i need to know for english 2 honors?
*October 10, 2010 by Breanna*

**honors chemistry- isotopes...**

can scientists actually measure the mass and relative abundance of isotopes of an element by counting each particle and measuring their masses? [ i think no because it would be too small ] if not, how could a scientist measure the mass and relative abundance of isotopes of an ...
*October 31, 2006 by guitarking4000*

**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**

Is the difference of quotient of f(x) = -3x˛ -x equal to -3h - 6x - 1?
*September 22, 2012 by Peter*

**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*