February 24, 2017

Search: Probability (Pre-Calculus)

Number of results: 30,394

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

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

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

Probability (Pre-Calculus)
A class is given a list of eight study problems from which five will be part of an upcoming exam. If a given student knows how to solve six of these problems, find the probability that the student will be able to answer: (a) all five questions on the exam. (b) exactly eight ...
March 25, 2010 by Hailey

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

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 algebra answer check
The probability that you will win a contest is 76%. What is the probability that you will lose the contest? 24%
May 30, 2012 by amy

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
A bag contains 4 blue marbles, 2 black marbles, and 3 red marbles. If a marble is randomly drawn from the bag, what is probability that it is not black? 1/2 2/9 5/9 7/9 14/19
November 27, 2012 by king chris

Hi, Well, I have a test tomorrow and I was hoping that's someone could maybe help me? I don't understand probability... Here's a question I don't understand: Find the probability of tossing three coins and getting only two tails. Can anyone help?
May 23, 2008 by Lily

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

Consider a class with 10 sophomores, 8 juniors, and 6 seniors. Two students are selected at random. 1) What is the probability of selecting 1 junior and 1 senior. 2) Find the odds of selecting two students who are not seniors. How do I set these up to solve?? Any help is ...
September 14, 2008 by Lucy

3 numbers x y and z are to bea randomly chosen between 0 and 1. A What is the probability that X + y + z will be less than 1? B What is the probability that both x+ y<1 and 1<x+a Try your best and... Thanks alot!
July 21, 2011 by jane

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-Calc, Probability
From a deck of 52 playing cards, 7 cards are dealt. What are the odds of the following event occuring --4 From one suit, 3 from another The probability of the event occurring is also acceptable. But, the answer is 99/16722971 (as far as the odds go
July 20, 2012 by Jay

In 1980 (before the era of in-vitro fertilization), there were 3,612,258 births in the United States (according to the U.S. Census Bureau), of which 68,339 births were to twins and 1,337 births were to triplets or more. What was the probability of having multiples (twins or ...
June 19, 2013 by f

Pre-Calculus-check answers
How many ways can 5 students be chosen from a group of 4 juniors and 6 seniors to be on the prom committee if exactly 3 students must be seniors? Answer: 5400 Find the probability of getting a sum of 5 on the first toss of two number cubes and a sum of 6 on the second toss. ...
October 11, 2008 by Lucy

Given the ensuing well drilling data, answer the following. • .30 (30%) probability of a productive well absent test information • Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well .70 of the time • Pre-drilling ballistics test’s...
October 25, 2007 by sophia

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

The below table shows the probabilities generated by rolling one die 50 times and noting the up face. What is the probability of getting an odd up face? roll 1 Probability 0.22 roll2 probability 0.10 roll 3 probability 0.18 roll 4 probability 0.12 roll 5 probability 0.18 roll ...
May 3, 2012 by sc

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
November 23, 2010 by sam

what is the F-^1 of 6/x+4
May 22, 2011 by kelly

pre calculus
July 9, 2011 by Anonymous

pre calculus
-2< x < 5 - -
August 8, 2011 by Carus II

December 12, 2011 by Ivan

(2^(4+pi))/ 2^(1+pi)
January 29, 2013 by yukia

x^3e^x - 4e^x =0
February 5, 2013 by suie

3x^2 + 8 = -4
September 11, 2013 by Janae

pre calculus
December 10, 2013 by Rose

pre calculus
December 10, 2013 by Rose

pre calculus
December 10, 2013 by Rose

pre calculus
December 10, 2013 by Rose

pre calculus
C=2 x^=8y
July 17, 2016 by Anonymous

math probability
this is a probability question... Suppose you are asked to choose a whole number between 1 and 13 inclusive. (a) what is the probability that it is odd?...7/13 (b) What is the probability that it is even?...6/13 (c) what is the probability that it is a multiple of 3?...4/13 (d...
December 18, 2008 by joe

pre algebra Is it A,B,C or D?
Rodney flips a fair coin and chooses a letter tile A, E, I, O AND U. He performs this experiment 50 times to determine the experimental probability that heads is tossed and the letter A is chosen. Which of the following is most likely to be the experimental probability that ...
May 23, 2016 by Katie Please help me :(

The probability, P, in percent, that a person will respond to a certain ad can be modelled by the equation P(n)=1-2^(-0.05n), where n is the number of days since the ad began on tv. After how many days is the probability greater than 20%? my work: 0.20=1-2^(-0.05n) then i ...
May 19, 2009 by Jus

pre algebra
The probability that Ann will have a test on Wednesday is .9. If she takes the test, there is a probability of .8 that she will pass the test. What is the probability that Ann will not pass the test on Wednesday? Is it .18 ?
May 23, 2016 by kathy

Pre Calculus
Formula: a = b = c
December 7, 2006 by Clarice

Pre Calculus
Formula: a = b = c
December 7, 2006 by Clarice

Pre calculus
November 5, 2007 by Anonymous

How do I find xy^-2(xy^2 - 4y^4) ??
January 5, 2010 by Taryn

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

What is the domain of (x+2)/(x-2)?
February 15, 2012 by Tiffany

March 3, 2013 by jim

pre calculus
December 10, 2013 by Rose

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

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-Algebra (Probability)
The theoretical probability of spinning an even number on a spinner is 2 — 3 . The spinner has 8 even-numbered sections. How many sections are on the spinner?
May 7, 2015 by Pyrenees

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

2secx= 3cscx
March 31, 2011 by Erika

x-2/x2-1 This equation is a function or not?
June 27, 2011 by Keila

Pre Calculus
September 13, 2011 by Libby

April 22, 2012 by Kim

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

Is the period of f(x) = 2cos(3x - ð) 2ð/3?
November 24, 2012 by Peter

1) What is the equivalent of this? -5x(2x+7y)+7xy-4x(y+3)
March 23, 2013 by Isis

How to find domain of: y = -3 + ãx+6
September 3, 2013 by Dara

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

for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)
September 30, 2014 by Anonymous

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

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

find the inverse of g(x)=(x+7)^3+4
February 3, 2015 by Drue

What are the holes of the function f(x) = (x^2 + 3x - 4)/(x^2 + 9x + 20)?
February 19, 2016 by Anonymous

How do I find the domain of K(x) = x(32 - 2x)^2?
June 2, 2016 by Anonymous

Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)
November 5, 2016 by Iris

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 alegabra
There are 14 nickels, 10 dimes, 6 quarters, and 22 pennies, what's the probability I will pick a dime from the jar?
June 3, 2014 by Adrianna

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

Describe the end behavior of f(x)=2x^4-5x+1.
August 23, 2008 by Lucy

Pre Calculus
July 25, 2009 by Shellie

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

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

December 12, 2011 by NN

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