2,195 Answered Questions for the topic Pre Calculus

Pre Calculus Math

05/14/17

(3-2x+3x^2+2)(5)
Let f(x)= 3-2x, g(x)= square root of x, h(x)= 3x^2+2. Find the indicated values. 
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Pre Calculus

05/08/17

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 2 cos 5θ
I would like for someone to explain how to do this. I don't want just an answer. My guess would be about the x-axis because there is a cosine but I don't think this a correct method to find out the... more
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Pre Calculus

05/08/17

Need help. Question is in the description.
Tyler threw the ball in to the air. It landed 2.6 seconds later. He released the ball at 4.5 feet. Figure out a function to model the ball. Only algebraic solutions accepted.
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Pre Calculus

05/03/17

sin2xsinx=cosx
Find the exact solutions of the equation in the interval [0,2π)  
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04/12/17

Summation with non upper limit
Hi, I woild like assistance with showing work on how to solve a summation question And determining if it is convergent or divergent Thanks in advance!    Question: (summation... more
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Pre Calculus Identities

04/10/17

Simplify the following trig expression
 Simplify the following trig expression : 1/1-sec x - 1/1+sec x 
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Pre Calculus Precalculus

04/10/17

write an equation of a parabola with vertex at the origin and the given directrix y=3
Find the standard form of the equation of the parabola with vertex a the origin directrix y =3.
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Pre Calculus Algebra 2

04/09/17

what are the solutions for 2sinø -sqrt root3=0 for 0< ø<2pi
This question is in the trig section of my course and I can't really understand what its asking me...
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Pre Calculus

03/23/17

What is the value of tan(arcsin square root 2 /2)
tan(arcsin √2/2)
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Pre Calculus

03/23/17

Given cos theta =-3/5 and 180 < theta< 270 find sin theta
Cos theta=-3/5 and 180≤ Theta ≤ 270
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03/21/17

Solve a rational function, find intercepts , domain , and asymptotes of 2(x-2)(x+1)/(x-3)(x+5)
Need this to graph please have no idea , need all intercepts, asymptotes and domain
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Pre Calculus

03/18/17

Precalc: Identities
Prove the following:sinx(tan^2x+1)=tanxsecx
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Pre Calculus Calculus Trigonometry

03/16/17

Find the partial fraction decomposition of the rational expression with prime quadratic factors in the denominator 5x^4-7x^3-12x^2+6x+21/(x-3)(x^2-2)^2
Find the partial fraction decomposition of the rational expression with prime quadratic factors in the denominator 5x^4-7x^3-12x^2+6x+21/(x-3)(x^2-2)^2
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03/07/17

f(x)=10^x and g(x)=-4(10^x)
what is the domain and range and the y-intercept?  
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Pre Calculus College Algebra

03/05/17

Find a polynomial of least degree with only real coefficients and having the given zeros.
1-square root of 3, 1+square root of 3, and 1+i.
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Pre Calculus Theta

02/28/17

Find an angle ø with 0<ø<360 or 0<ø<2pi that has the same sine value as 3pi/8
I want to know how to solve this in radians 
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Pre Calculus

02/27/17

A vector starts at (9, 11) and terminates at (6, -10).
A vector starts at (9, 11) and terminates at (6, -10). What is the magnitude of this vector?Round to 2 decimal places
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Pre Calculus

02/25/17

Pre calculus
Find the standard form of the equation of the ellipse satisfying the given conditions.Foci: (0, -2), (0, 2); y-intercepts: -3 and 3
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Pre Calculus

02/25/17

Pre calculus
Find the standard form of the equation of the ellipse satisfying the given conditions.Major axis horizontal with length 12; length of minor axis = 6; center (0, 0)
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Pre Calculus

02/25/17

Pre calculus
Find the standard form of the equation of the ellipse satisfying the given conditions.Endpoints of major axis:(-2, -1) and (-2, 7) ; endpoints of minor axis:(-4,3) and (0,3).
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Pre Calculus

02/25/17

Pre calculus
1. Find the standard form of the equation of the ellipse satisfying the given conditions.Endpoints of major axis: (10, -3) and (-2, -3); endpoints of minor axis: (4, -1) and (4, -5)
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Pre Calculus

02/18/17

Finding the value of x
A soccer ball is kicked with some initial velocity v at some angle θ such that its path in the air follows the equationy=1.0+1.73x-1.225x^2where (x,y) is the coordinate of the ball along its path... more
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Pre Calculus

02/15/17

Help Please
The cost of manufacturing a semi-circular window is the cost of the glass pane together with the cost of the framing material. When ordering this window, a customer specifies the length of the base... more
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Pre Calculus

02/12/17

Solve this equation by factoring square root 6 x^2-x-square root 6=0
I am struggling with this question 
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Pre Calculus

02/09/17

Determine the quadrant when the terminal side of the angle lies according to the following conditions: sin (t) > 0, sec (t) > 0.
Determine the quadrant when the terminal side of the angle lies according to the following conditions: sin (t) > 0, sec (t) > 0.
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