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October 25, 2014

Search: Pre-Calculus-Trig

Number of results: 19,292

Pre- Calculus
Evaluate the trig function tan33degress
February 23, 2012 by Steve

pre calculus 2
use the fundamental trig. Identities to simplify tan^4x+2tan^2x+1
July 24, 2011 by denise

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
find the trig functions of angle x if the terminal side of x passes through the point (-12, 5).
August 7, 2011 by Lala Kennedy

Pre-Calculus/Trig...
Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
October 1, 2014 by Anonymous

Pre Calculus/Trig
find the area of a circle inscribed in triangle ABC where a=9, b=13, and the measure of angle C=38 degrees
October 11, 2007 by Nick

Pre Calculus
Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)
November 15, 2009 by Pre Calculus

Calculus/pre-trig
Write the formula for the discriminant. State the types of roots for a quadratic equation, explaining how the discriminant helps you determine the type.
October 25, 2014 by Anonymous

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-Trig
A road rises 140 feet per horizontal mile. What angle does the road make with the horizontal?
January 30, 2011 by Chloe Mack

Pre-Calculus-Trig
A 40 foot high flagpole sits on the side of a hill. The hillside makes a 17 degree angle with horizontal. How long is a wire that runs from the top of the pole to a point 72 feet downhill from the base of the pole?
January 30, 2011 by Chloe Mack

Pre-Calculus-Trig
A pilot in a plane at an altitude of 22,000 feet observes that the angle of depression to a nearby airport is 26 degrees. How many miles is the airport from a point on the ground directly below the plane?
January 30, 2011 by Chloe Mack

Pre-Calculus-Trig
A surveyor stakes out points A and B on sides of a building. Point C on the side of the building is 300 feet from A and 440 feet from B. Angle ACB measures 38 degrees. What is the distance from A to B?
January 30, 2011 by Chloe Mack

Pre-Calculus-Trig
A lighthouse keeper 100 feet above the water sees a boat sailing in a straight line directly toward her. As watches, the angle of depression to the boat changes from 25 degrees to 40. How far has the boat traveled during this time?
January 30, 2011 by Chloe Mack

Trig/Pre-Calc
Need help with current Trig problem for tomorrow: Solve the logarithmic equation algebraically. Approximate the result to three decimal places. 6log3(0.5x)=11 I know to start off the equation you divide by 6. I know the answer is 14.988. I just am puzzled on how to receive the...
May 16, 2011 by Eric

Pre-Calculus-Trig
Two trains depart simultaneously from the same station. The angle between the two tracks on which they leave is 120 degrees. One train travels at an average speed of 45 mph and the other at 70 mph. How far apart are the trains after three hours?
January 30, 2011 by Chloe Mack

Pre-Calc/Trig...
If f(x)=1/(x+2), what is f(3+h)? A. 1/(3+h) B. 1/(h+5) C. 1/(x+2)(3+h) D. (3+h)(x+2)
October 3, 2014 by Anonymous

Pre-Calculus-Trig
A pole tilts 12 degrees from the vertical, away from the sun, casts a 34 foot long shadow on level ground. The angle of elevation from the end of the shadow to the top of the pole is 64 degrees. How long is the pole?
January 30, 2011 by Chloe Mack

pre-calc/ trig
Sinx=0
October 15, 2013 by Amy

Pre-Calc/Trig...
Assume f(x) = -2x + 8 and g(x) = 3x. What is the value of (f + g)(-1)?
October 3, 2014 by Anonymous

Pre-Calc/Trig...
vertex form:y-4=-(x-4)^2
October 6, 2014 by Anonymous

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-Calc/Trig
Help Please Find (fog)(2) and (f+g)(2) when f(x)= 1/x and g(x)=4x+9
September 28, 2014 by Anonymous

Pre-Calc/Trig...
Solve using any method. 1. 2x^2+5x-3=0 2. -x^2+x+1=0
October 15, 2014 by Anonymous

Pre-Calc/Trig
How would I solve this? x^2+10x+24=0
October 25, 2014 by BelovedAngel

Pre-Calc/Trig
Have i solved this correctly? x^2+3x-28=0 (x+7)(x-4)=0 x=-7 or 4
October 25, 2014 by BelovedAngel

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 Calc , Math
Find the 6 Trig ratios of -7Pie/3
January 2, 2011 by Joe Daddy

Pre-Calculus-Trig
A boat travels for 8 kilometers in a straight line from the dock. It is then sighted from a lighthouse which is 6.5 kilometers from the dock. The angle determined by the dock, the lighthouse(vertex), and the boat is 25 degrees. How far is the boat from the lighthouse?
January 30, 2011 by Chloe Mack

Pre-calc, Algebra, Trig
(2x squared-3x +1)(4)(3x+2)cubed (3)+(3x +2)raised to the 4 (4x-3) Simplify
January 20, 2009 by Josiah

Pre-Calc/Trig...
Use the discriminant to determine the nature of the roots. 1. 2x^2+5x-3=0 2. -x^2+x+1=0
October 15, 2014 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 cal\trig
Find the following cot(Arccsc 25/24) show your work
May 26, 2011 by Cheryl

Pre-calc/Trig...
which of the following are quadratic functions? check all that apply 1. y=2x^2-3x+7 2. y=3x-4 3. y=(5x-3x^2)/4+1 4. y=x-x^3
October 8, 2014 by Anonymous

Pre-Calculus-Trig
A straight road slopes at an angle of 10 degrees with the horizontal. When the angle of elevation of the sun (from horizontal) is 62.5 degrees, a telephone pole at the side of the road casts a 15 foot shadow downhill, parallel to the road. How high is the telephone pole?
January 30, 2011 by Chloe Mack

Pre-Calc/Trig...
am i correct? What is the axis of symmetry for the graph of y=2x^2-4x+2? x=? the line goes through 1? x=1
October 14, 2014 by Anonymous

Pre-Calc/Trig...
Help me please. Solve the equation: (x-3)(x+2)=0 Enter the solution with the lowest value.
October 16, 2014 by Anonymous

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-Cal: Trig
The point (7,2) determines a poistion angle "t". Find the exact value of sin(t).
January 23, 2011 by Alex

Pre-Cal: Trig
The point (7,2) determines a position angle "t". Find the exact value of sin(t).
January 23, 2011 by Alex

Pre-Calc/Trig
Helpp please State the domain and range of each of the following functions: 1. f(x)=1/(x+3) 2. g(x)=√x+6 3. h(x)=x^3+2x+5
September 28, 2014 by Anonymous

Pre-Calc/Trig...
Am i correct? A vertical shift is an example of a non-rigid transformation. True
October 14, 2014 by Anonymous

Pre-Calculus/Trig Check please and help
Could someone please check the first one and help me with the second one. I'm stuck-Thank you 1.What are theroots of the following polynomial equation? (x+2i)(x-5)(x-2i)(x+8) = 0 I think the roots are -2i,5,2i,-8-you take out the roots as opposites of what are in the equaion ...
September 5, 2011 by Tabitha

Pre Calc Trig
Verify the following: tan( a + p/2) = -cot a a= alpha and p= pie since I do not have that button.
March 29, 2011 by Brittany

Pre-Calc/Trig...
Which of the following quadratic functions has a graph that opens downwards? check all that apply A. y=2x^2-9x+3 B. y=x^2+4x+8 C. y=-(5+2x^2) D. y=60x-15x^2
October 9, 2014 by Anonymous

Pre-Calculus-Trig
Two surveyors, Joe and Alice, are 240 meters apart on a riverbank. Each sights a flagpole on the opposite bank. The angle from the pole to Joe (vertex) to Alice is 63 degrees. The angle from the pole to Alice(vertex)to Joe is 54 degrees. How far are Joe and Alice from the pole?
January 30, 2011 by Chloe Mack

Pre-Calc/Trig..
Write a function for the graph described as a transformation of y=x^2 y=x^2 experiences a vertical stretch of factor 2 and then a shift right of 3 units.
October 7, 2014 by Anonymous

Pre-Calc/Trig...
Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=x^2+7
October 7, 2014 by Anonymous

Pre-Calc/Trig...
Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=(x+5)^2
October 7, 2014 by Anonymous

Pre-Calc/Trig
How would I solve this one? I just can't get this one. 6x^2+11x-35=0
October 25, 2014 by BelovedAngel

Pre-Calc/Trig...
Help me please. Simplify 1. √-36 2. -√-625
October 17, 2014 by Anonymous

Pre- cal Trig
2cos^2x=cosx. Can you subtract the cos from cos^2? Or what would i have to do?
December 2, 2010 by Jessica

Pre-Calc/Trig...
Which of the following is the equation of a line parallel to the line y = 3x + 2, passing through the point (10,1)? 3x + y = 29 3x - y = 29 -3x - y = 29 3x + y = 29
October 3, 2014 by Anonymous

Pre-Calc/Trig...
Help me do this please. Simplify the expressions using imaginary numbers. 1. √-16 2. √-49
October 15, 2014 by Anonymous

Pre-Calc/Trig...
if h(x)=(fog)(x) and h(x)=3√x+3 find g(x) if f(x)= 3√x+2
October 4, 2014 by Anonymous

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
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-Cal (verifying trig identities)
How would you verify the identity? sin^1/2x-cosx-sin^5/2xcosx=cos^3xradsinx
February 12, 2009 by Crystal

math- pre calc/trig
Find the length of each side of a square if the diagonal is 7(square root 2)? How do I solve or set up this problem?
September 30, 2014 by jen

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 calc
express the followinf trig functions in terms of an acute angle. (a) cos 143 degrees (b) tan 192 degrees
January 25, 2010 by kate

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 - ) 2/3?
November 24, 2012 by Peter

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