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September 19, 2014

Search: Trigonometric prob

Number of results: 647

math
the probabilities that 3 friends A,B andC pass a driving test are1/3,1/4,2/5 respectively.All 3 take the test find the probability that(a)aa 3 failed the test (b) only B passes the test(c) only 2 of them pass the test (d)at least 1 passes the test... I will do one. Assuming ...
June 26, 2007 by celina

stats
a test consists of 25 multiple choice questions. Each has 5 possible answers, which only one is correct. If a student guesses on each question, find the following: a) prob that he will guess all of them right b)prob that he will guess at most 12 right c) prob that he will ...
February 18, 2011 by gio

TRIGONOMETRY
Write the following trigonometric expression as an algebraic expression in x free of trigonometric or inverse trigonometric functions sin(cos^-1 x) -1≤x≤1
December 4, 2012 by Matthew

Math(Correction)
Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. sec Q = 5 tan = 2sqrt6 a) cos Q b) cotQ c) cot(90 degrees - Q) d...
March 23, 2010 by Mark

Math(Correction)
Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. sec Q = 5 tan Q = 2sqrt6 a) cos Q b) cotQ c) cot(90 degrees - Q) ...
March 23, 2010 by Mark

Math
Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. sec Q = 5 tan = 2sqrt6 a) cos Q b) cotQ c) cot(90 degrees - Q) d...
March 23, 2010 by Mark

statistics
Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die
October 4, 2013 by Sandra

Statistics
How do I plug this into the Binomial Probability Formula? prob(lost) = 5/1000 = 1/200 prob(not lost) = 199/200 prob( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20 = .005224..
March 9, 2014 by Brenda

Trigonometric prob.
Hi, my question is attached to the web below (picture), because I can't draw the diagram on here. Sorry for any inconvenience. Please help and thanks. imageshack . us/photo/my-images / 845 / img0043gx . jpg/ Sorry, the web address is spaced out so you need to put it together.....
April 30, 2012 by Anonymous

Math
How do I work this math prob. I always have a B and would like to bring it up. Caan you PLEASE help me with this prob. on unit rates "$2 for 5 cans of tomato soup"
January 10, 2011 by Sarah

Trigonometric Expressions
Simplify and write the trigonometric expression in terms of sine and cosine: tanxcscx= 1/f(x) What does f(x)=
July 20, 2011 by Anonymous

math
State a trigonometric ratio that is equivalent to each of the following trigonometric ratios Sin 3pie/10 Cos 6pie/7
November 10, 2012 by Melissa

Math(Correction)
Use the given function values and trigonometric identities (including the relationship between a trigonometric function and its cofunction of a complementary angle) to find the indicated trigonometric functions. Sorry for the mistake. They are two seperate functions and i need...
March 23, 2010 by Mark

math- algebra- help please!
3 dice are rolled let (y,r,b) represent each outcome? a- sample space b- prob rolling a sum of 18 c- prob of rolling a sum less than 5
April 6, 2011 by Zach

algebra
Prob.1: -14=2x+2x-2 Prob.2: 5x=50
May 29, 2013 by cheyenne

math 10
determine the value of the three primary trigonometric ratios i have triangle in front of me but what am i looking for? what is trigonometric ratios?
February 4, 2010 by just wondering part 2

Trig.
I really need help so please help. write the first trigonometric function in terms of the second trigonometric function. sec x; tan x
April 30, 2010 by Theresa

Trigonometric Identities
Which of the following are trigonometric identities, I have narrowed it down to two - (cscx + cotx)^2 = 1 OR sin^2(x)sec^2(x) + 1 = cot^2(x)csc^2(x)
March 24, 2011 by Veronica

Trig
In ABC, vertex C is a right angle. Which trigonometric ratio has the same trigonometric value as Sin A? A Sin B B Cosine A C Cosine B D Tan A
December 13, 2011 by Carl

Statistics
DIAGRAMS MUST BE DRAWN Given the standard normal distribution, determine:Prob Z greater than 1.50 Prob Z between1.06 and 1.96 Given the standard normal distribution determine the Z values that contain 80% in the middle of the curve.
March 2, 2013 by Sue

Probability and Statistics (Continuation)
Assume 10% of the engines manufactured on an assembly line are defective. If engines are randomly selected one at a time and tested. What is the probability that the third nondefective engine will be found a)on the fifth trial? b) on or before the fifth trial? MY answers: a) P...
September 29, 2013 by Katy

STATISTICS
PINWORM INFESTATION COMMONLY FOUND IN KIDS CAN BE TREATED WITH THE DRUG PYRANTEL PAMOATE. RESEARCH SHOWS THE TREATMENT IS EFFECTIVE IN ABOUT 90% OF CASES. DRUG IS ADMINISTERED TO 25 KIDS WHAT IS THE PROBABILITY THAT EXACTLY 23 OF THEM ARE CURED? WHAT IS THE PROB. THAT MORE ...
February 10, 2008 by todd

statistics
PINWORM INFESTATION COMMONLY FOUND IN KIDS CAN BE TREATED WITH THE DRUG PYRANTEL PAMOATE. RESEARCH SHOWS THE TREATMENT IS EFFECTIVE IN ABOUT 90% OF CASES. DRUG IS ADMINISTERED TO 25 KIDS WHAT IS THE PROBABILITY THAT EXACTLY 23 OF THEM ARE CURED? WHAT IS THE PROB. THAT MORE ...
February 10, 2008 by todd

statistics
Pinworm infestation commonly found in kids can be treated with the drug pyrantel pamoate. Research shows the treatment is effective about 90% of cases. The drug is administered to 25 kids. What is the probability that exactly 23 of them are cured? What is the prob. that more ...
February 10, 2008 by todd

Finance
Assuming that the returns from holding small-company stocks are normally distributed, what is the approximate probability that your money will double in value in a single year? What about triple in value. Many of my classmates have an expected return of 17.6% and a standard ...
July 15, 2012 by Anonymous

ECON! Please help!
Joe: y= 100 (High) prob = 2/5 =25 (medium) prob= 2/5 =0 (low) prob = 1/5 Calculate: 1. José’s risk premium, p, associated with farming and 2. José’s certainty equivalent associated with farming. The village decides to implement an informal insurance (risk sharing) arrangement...
June 1, 2010 by anonymous

statistics
Information given:the distribution of male head circumference (HC) is normal with a mean of 56cm and a standard deviation of 1.8cm first question -the prob that HC of a random chosen man is larger than 57.8cm is? Work: pr(x)>57.8cm z=(57.8-56)=1.8--->.9641 i got it wrong...
April 15, 2010 by UPD

Stats
nformation given:the distribution of male head circumference (HC) is normal with a mean of 56cm and a standard deviation of 1.8cm first question -the prob that HC of a random chosen man is larger than 57.8cm is? Work: pr(x)>57.8cm z=(57.8-56)=1.8--->.9641 i got it wrong...
April 15, 2010 by UPD

Trigonometric Functions
Determine the Value of all six trigonometric functions of theta when given? I need help. This is for my midterm review, if anyone is willing to help, I'd appreciate it. a) sin theta= 3/5 and theta is in quadrant 1. b) tan theta= -2 and theta is in quadrant II c) sec theta = 2 ...
January 6, 2008 by Mike

Trigonometry
I don't understand how I'm supposed set the problem up or what theta is... Use the given function value(s), and trigonometric identities (including the cofunction identities), to find the indicated trigonometric functions. sec theta = 5, tan theta 2 * 6^1/2 a) cos theta b) cot...
April 23, 2009 by Chris

Calculus 2
Evalute the integral of x/(x^2+4)dx using u-substitution and then trigonometric substitution. I did this and got (1/2)ln(x^2+4)+C using u-substitution and x^2+4+C using trigonometric substitution. What did I do wrong??? thank you for helping!
October 10, 2012 by Heather

trigonometric identities
Prove the following trigonometric identities 1. tanx = sinx + sin^2x/cosx(1+sinx) 2. cos^3+(cosx)(sin^2x) = 1/secx
June 22, 2012 by noel

math
dale placed six cARDS IN A BAG.QONE CARD IS LABELD 1,TWO CARDS ARE LABELD2,AND RTHREE CARDS ARE LABELD 3.FIND THE PROBABILITY OOF PICKING TWO CARDS IN THE ORDER OF THE NUBERS LISTED TH EFIRST CARD IS RETURNED BEFORE THE SECOND IS PICKED ..... P,(1,2) P(3,NOT1) p(NOT2,2) P(1,3...
May 22, 2007 by sam

circular (trigonometric) functions
hi, i need help solving this trigonometric equation: sinx+3cosx=0 i don't know what to do as i can't just diviide the two to create tanx which is what i have been doing in previous questions... yes, you are on the right track sinx = -3cosx sinx/cosx = -3 tanx = -3 so x must be...
April 14, 2007 by elle

Trigonometric Substitution
Trigonometric Substitution a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 . b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or ...
June 28, 2011 by John

trig
find the reference angle of -20000 and express the six trigonometric functions of -20000 in terms of the six trigonometric functions of its reference angle.
September 15, 2012 by patrick

stats again
ok I get it, so once I get the prob figred for one person, how do I figure it if additional attempts are made and the question is about the prob of at least one of the additional attempts say n = 6 getting the same results as the first Once you have the probability of passing ...
July 5, 2007 by holly

algebra
another prob(last one) 6x-7x=18
June 8, 2010 by Anonymous

Prob/Stat
If P(A) = .3 and P(B) = .4 and P(AandB) = .2 what is P(A/B)? P(B/A)? Are A and B indepentent?
April 1, 2012 by Sheila

quantum
prob 2 ans please?
September 13, 2013 by Anonymous

math prob
how many midsegments does a triangle have?
May 8, 2009 by gabe

math
so the prob of drawn an ace or spade is 4/52
October 27, 2009 by rency

chemistry
So i if do 4 x250/100 i will get the answer for the prob?
July 18, 2014 by kody

Math Prob
ok for changing the base of a log from 10 to e is there a formula?
December 11, 2008 by confused

SPELLING PLEASE help
the prob is: middle : center :: thinner : s _ _ _ _er
November 27, 2007 by Amber

MATH Prob.
How many different ways can a teacher line up 5 students for lunch?
August 20, 2009 by Twg

stats & prob.
Given the values of n=5, p= 0.15, and (1-p)=0.85, calculate the standard deviation of the data.
November 27, 2012 by Georgia

probability!
we were given a chart - "researchers developed the following tabel of joint probabilities of number of drinks per day and development of ulcers" and the question is a. what proportion of people have ulcers - how am i supposed to know htis b. what is the prob that someone who ...
October 21, 2010 by Lauren

tRiG/ AlGeBrA
1) Use double-angle identities to write the following expression, using trigonometric functions of x instead of 4x. cos 4x 2) Use half-angle identities to write the following expression, using trigonometric functions of x instead of x/4. sin x/4
February 27, 2012 by CHEYANNE

trig
1) Use double-angle identities to write the following expression, using trigonometric functions of x instead of 4x. cos 4x 2) Use half-angle identities to write the following expression, using trigonometric functions of x instead of x/4. sin x/4
May 28, 2012 by marie

prob.
If it is given that P(A)=1/3 and P(B/A)=2/3 (the dividing sign is ment to be a vertical bar), what is P(A and B). I got .07. Is this correct? If it isn't, why not?
December 18, 2008 by Juliette

MATH Prob.
How many three-symbol codes can be formed from the letters I, S, P, and Y without repetition?
August 6, 2009 by Twg

trigonometric
2 cos x - 1 =0
May 5, 2010 by charles

MATH Prob.
Three angles of a quadrilateral each measures 87*(degrees)..what is the measure of the fourth angle??
August 19, 2009 by Twg

MATH Prob.
What is the expected value of one 700 tickets in a raffle for a prize of $1400?
August 20, 2009 by Twg

MATH Prob.
how many three letter symbols can be formed from the letters A,C,K,L, & M without repetition? so far I have 12
August 8, 2009 by Twg

Algebra 2: Prob and Stats
Find the sample size that produces the margin of error +-4.0% a) 325 b) 25 c) 16 d) 625
May 24, 2010 by Skye

Trigonometry
what is the trigonometric form of z=1+i?
December 1, 2012 by Josh G.

MATH Prob.
if you have two fair dice that are rolled, what is the probability of a sum 6 given that the roll is a 'double'?
August 8, 2009 by Twg

MATH Prob.
What are the odds in favor of getting at least one head in three successive flips of a coin?
August 11, 2009 by Twg

MATH Prob.
There are 6 contestants in a singing competition. How many different ways can first, second, and third place be awarded?
August 20, 2009 by Twg

precalculus
put this in trigonometric form: -3-i
May 26, 2008 by bill

trig
What is the trigonometric notation for 3-3(sqrt3i)?
April 17, 2011 by Jackie

precal
identify the trigonometric form of -6+6i
May 20, 2011 by joe

Trigonometry
What does a trigonometric value represent?
August 21, 2013 by Anonymous

Prob and Stats
In a multiple regression with 5 predictors in a sample of 56 U.S. cities, what would be the critical value for an F test of overall significance at a= .05? A. 2.45 B. 2.37 C. 2.40 D. 2.56
December 9, 2009 by please help!

Calculus
I'm having difficulty figuring #2 of this prob;em. I'm utterly clueless. Can someone explain it? Please and thank you. y=x 2. List the roots of the function.
August 18, 2011 by Elee

PLEASE HELP - DIVISORS PROB
What is the probability that a randomly selected divisor of 720 is a multiple of 4? Express your answer as a common fraction.
November 15, 2012 by failureinmath

math
what is the ffive trigonometric function of sin =2/5 ?
August 21, 2009 by jhonas

math
find the value of the trigonometric functions
November 23, 2009 by dq

Trigonometry
How do you express sin4x as a trigonometric function of x?
February 15, 2010 by Veronica

math
to find of trigonometric ratios of angles 60
March 9, 2010 by atiqullah

trig
Graph this trigonometric function. y=-4cos(x/2+3.14)+1
April 15, 2011 by Bob

Trigonometry
what is z= -2-2square root of 3i in trigonometric form.
December 2, 2012 by Josh G.

trig
what is the correct answer in trigonometric identities. DiViDE ; x^5 + 5x^4 - 2x^3 + 3x^2 + 2x + 1 by x + 3
February 2, 2012 by mien

Calculus 2
find the integral of x/(x^2+4)dx using trigonometric substitution.
October 10, 2012 by Heather

math
find the 6 trigonometric functions of tan (-3/8): sin < Ř
November 27, 2012 by kym

Math
Find in terms of trigonometric function of x Tan(90° + x)
January 19, 2013 by Riley

math
am having prob..wv zs numb..given that f(x)=x+6/2x,find f(4) and f inverse(x) am not sure abt the answer the frst 1,i get 1.25 and the second oneeee i dnt knw hw to do it
September 16, 2008 by pallaa

MATH Prob.
How many batting lineups of the nine players can be made for a baseball team if the catcher bats first, the shortstop second, and the pitcher last?
August 12, 2009 by Twg

chem
I am having a hard time with the following : 50 g HCl + 50g Ca(OH)2=H2O+? amt of CaCl2? I dont know how to set this prob. up.Please HELP!Thank you in advance....
November 12, 2010 by joann

Math
state the primary trigonometric ratio associated with angle a p(-2,5)
November 26, 2011 by Nikki

math
The trigonometric function sin(-8 x) is equal to one of following:
December 13, 2011 by Anonymous

maths
Express sin 2x cos 4x as a sum of trigonometric functions.
December 23, 2012 by laura

maths
Express sin 2x cos 4x as a sum of trigonometric functions
December 24, 2012 by tom

Math
Trigonometric identity SinD tanD Simplify please
February 5, 2013 by Sarah

trig
Solve the equation. Express your answer in trigonometric form. x^5 - 11 = 0
June 28, 2013 by tony

math prob
Twelve people attend the first meeting of the Star Wars Club. They exchange e-mail addresses. How many exchanges take place?
October 6, 2013 by Anonymous

Plz Help!I Need to find Hypotheses for prob.
If 3x - 7 = -4, then x = 1. Write the hypotheses of this statement
December 2, 2006 by Margie...

Calculus III
Derivative of Inverse Trigonometric Functions f(x) = sin(arccos(4x)) What is f'(x)?
January 22, 2008 by Sean

Calculus III
Derivative of Inverse Trigonometric Functions f(x) = cos(arcsin(2x)) What is f'(x)?
January 22, 2008 by Sean

trig
write the expression sin4xsin5x as a sum or difference of trigonometric functions
April 14, 2008 by sam

Trig
Give the exact value of the trigonometric function: arctan(√3)
January 21, 2010 by Trevor

Trig
verify following trigonometric identities. 1/sec0tan0 = csc0 = sin0
August 24, 2010 by Jose

trig
determine an exact expression for the trigonometric function sin(13pi/12).
October 25, 2010 by jj reddick

trig
cos t=.7, tan t<0. find the values of the other 5 trigonometric functions.
November 27, 2011 by Marni

trig
Find the exact value of the trigonometric function. -cot(pi/4 + 16pi)
December 12, 2011 by Keenia

Calculus
Determine the exact values of the six trigonometric functions of the angle.(-5,-2)
September 8, 2014 by Ashley

math
okay i am comepletely stuck on this math prob....: x + 5y - 10 = 0 x = 2y - 8 i know the answer is -20/7 , 18/7 but i have no idea how they got it so someone PLZ HELP!!!!
February 26, 2008 by shelby

MATH Prob.
What are the odds in favor of drawing a spade and a heart if drawing from a deck of cards w/o replacement?
August 11, 2009 by Twg

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