# Pre-Calculus

21,887 results-
## 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 -
## 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! -
## Pre Calculus

Pre Calculus why is sin(-20)/cos 380 equal to tan (-200) -
## 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 -
## 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 -
## 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 -
## 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 -
## 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 -
## 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 -
## Pre-Calculus 12

I am refering to the question posted on Tuesday, June 6, 2017 at 8:26pm. "how to graph y= (x^2-3x-10)/(x-2)" This is the reply I got: Pre-Calculus 12 - Damon, Tuesday, June 6, 2017 at 9:21pm (x-5)(x+2)/(x-2) well we know it is 0 at x = 5 and at x = -2 and -
## Question

@Alex asked this question when I was on earlier: Let line l_1 be the graph of 5x + 8y = -9. Line l_2 is perpendicular to line l_1 and passes through the point (10,10). If line l_2 is the graph of the equation y=mx +b, then find m+b. I'm wondering like how -
## 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 -
## 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? -
## 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 -
## Pre-Calculus

3x^2 + 8 = -4 -
## pre calculus

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

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

x^2-3x-7=0 -
## pre calculus

(m+3)+5 -
## pre calculus

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

3(4^x)-2^(x+2) = -1 -
## pre-calculus

x^3e^x - 4e^x =0 -
## pre calculus

C=2 x^=8y -
## pre calculus

2k^2+5k-9=0 -
## pre-calculus

(2^(4+pi))/ 2^(1+pi) -
## pre calculus

2k^2+5k-9 -
## Pre-calculus

2^(x)/(1-2^(x))=3 -
## PRE CALCULUS HELP PLEASE

((ln(x))^1/2)/(ln(x^1/2))=6 -
## pre calculus

2n^1/3(n^2/3+n^-1/3) -
## pre calculus

-2< x < 5 - - -
## Math, calculus, advanced functions, pre calculus

An investments value, V(t) is modelled by the function V(t)=2500(1.15)^2, where t is the number of years after funds are invested A) find the instantaneous rate of change in the value of the investment at t=4, what intervals would you choose? Why? My -
## 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 ? -
## Pre-Calculus

14cos+7=O -
## Pre-Calculus

What is the absolute value of: 3 - 8i? A. 9 B. 64 C. √55 D. √73 -
## Pre Calculus 1

ln(3x-1) - ln(x+2) = 2ln5 -
## Pre-Calculus

How do you factor x^3 - 64? -
## Pre Calculus 1

lnx + ln(x+3) = 2 -
## Pre-Calculus

Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v) -
## Pre-Calculus 12

how to graph y= (x^2-3x-10)/(x-2) -
## pre calculus

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

Formula: a = b = c -
## Pre Calculus

Formula: a = b = c -
## Pre calculus

gfk -
## pre-calculus

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

solve 2x + y = 8 4x + 2y = 16 -
## Pre-Calculus 12

how to solve 3^(x-2) = 5^x -
## pre calculus

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

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

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

if y = bX, then its inverse is -
## pre calculus

what is the vertices of 7x^2+5y^2=35 -
## pre calculus

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

2x^2+11x-21=0 -
## pre- calculus

simplify 3x+2y/3y -
## Pre-calculus

Can someone help me with this equation: y = (2*10^(-44))*(e^(0.055x))? -
## Pre calculus- help!

find (gof)(x) when f(x) = √x+1 and g(x) = x^2+3/x -
## pre-calculus

Let f(x)=x^2+bx+27. Find the value(s) of b so that f(x) has minimum value of 2. -
## Pre-Calculus

is f(x)=9x^(5/3) a power function? -
## Pre-Calculus

For any two linear functions f(x)=ax+b and g(x)=cx+d, is f o g the same as g o f? -
## Pre-Calculus

given: ((x-2)^2/9)+((y-4^2/16)=1 what is the major axis? -
## pre calculus

Name 3 different representations of the following (-6, 3pi/4) -
## Pre-calculus

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

2secx= 3cscx -
## pre-calculus

Determine whether y is a function of x: x^2y-x^2+4y=0 Please help. Thanks. -
## pre calculus

Can you explain how to find (u • v)(u + v) when u <-1, 7> and v <4, -3> -
## 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? -
## Pre-Calculus 12

2x^3 - 13x^2 + 32x - 13 = 0 -
## Pre-calculus

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

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

FACTOR COMPLETELY 1) x^8-y^8 -
## Pre-Calculus

Find the value of the parameter: x = 3t y = t^2 + 5 t = 2 -
## pre calculus

are you an online tutor -
## Pre-Calculus

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

use gauss-jordan x+2y=5 2x+y=-2 -
## Pre-Calculus 12

Solve using logarithm: 2^(4x+1)=3^x -
## pre-calculus

tan(1/2)cos^-1(9/10) -
## Pre-Calculus

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

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

find the inverse of g(x)=(x+7)^3+4 -
## pre calculus

simplify sin(2 pi/3+x) -
## pre-calculus

6cos^2(x)-5cos(x)-6 -
## Pre calculus

f(x)={ x+5, if x>0 3, if x<=0 Graph the function can someone please help -
## Pre-Calculus

Need help with the following along with all steps. Find y" for y = 3x + 4/x -
## Pre-Calculus

How to find domain of: y = -3 + ãx+6 -
## Pre-Calculus

Reflect f(x)=x^2 about the y-axis. What changes? -
## Math (pre calculus)

ax+b/cx+d=2 solve for x -
## Pre-Calculus/Trigonometry

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

How do I find f(g(x)) when there is a radical? -
## pre calculus

how do you tell if a function is even or odd? -
## Pre-Calculus

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

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

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

Help me please, just explain. How would I find f(1)? f(1)= x; -3, -2, -1, 0, 1, 2 f(x); 3.4, 0, -1.2, 0.4, 1.3, 1.7 -
## Pre-Calculus

Find P + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) (the k+1 and k in front of the P are subscripts) A. 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] B. 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) C. 7 + 13 + 19 + …+(6k + 1) D. 7 -
## pre - CALCULUS

Find functions f and g so that h(x) = (f ∘ g)(x). h(x) = (6x - 14)8 -
## Pre-Calculus

Evaluate. 1-|200+||-2|(-5)^3|| I get 49 as an answer -
## Pre Calculus

log(log10^10,000)