Number of results: 927
Suppose that Cot(theta) = c and 0<theta<pi/2. what is a formula for tan (theta) in terms of c? Cot = 1/tan I know that, but I don't understand what the question is really asking for.
Wednesday, January 23, 2013 at 2:29pm by Greg
3x to the third power<24x If this is 3x3 < 24x then divide by 3x on each side x2 < 8 x < sqrt8
Monday, October 23, 2006 at 4:34pm by Tricia
Is there any complex numer that is equal to its conjugate? a+bi=a-bi????? precalc 11th grade a+bi=a-bi ---> 2 bi = 0 ---> b = 0 So, the imaginary part has to be zero.
Thursday, November 16, 2006 at 7:10pm by bill
If g(x = log subscript 7 x then what is the value of g(1/49)? I believe it's 1/2 but I'm not sure. no recall that log 1/49 (base7) = log 1 - log 49 = 0 - 2 =-2
Saturday, January 13, 2007 at 1:59pm by emma
So if f(x) = log subscript 5 x then the value of 125 is -3 and the value of 1/25 is -2. Right?
Saturday, January 13, 2007 at 2:27pm by Hannah
I'm studying for my precalc exam and have completed 42 practice problems. I have 3 I need to answer that I can't. Please help. What is the base of the function G(x) = log subscript b x if it's graph has points (16,4)? Using the properties of logarithms how do I rewrite log ...
Saturday, January 13, 2007 at 5:23pm by jackie18
I'm terrible at pre calc, could someone tell me if the solution set for log subscript 2 x + log sub 2 (x-1)=1 is the solution -1? Using either the elimination or substitution method is the solution set for 4x + y =11 and 2x -y = 7 is the answer (3, -1)? Kudos! Yes.
Saturday, January 13, 2007 at 5:57pm by eragon
PRECALC! HELP ASAP!!
A television antenna sits on the roof. Two 78-foot guy wires are positioned on opposite sides of the antenna. The angle of elevation each makes with the the ground is 23 degrees. How far apart are the ends of the two guy wires? I have no idea where to start from... any help ...
Tuesday, February 13, 2007 at 11:17pm by anonymous
Someone please help me solve this equation for y. (x^2)(y^2)+xy=1 I need to solve for y so that i can graph it! y^2 + y/x - 1/x^2 = 0 Treat 1/x as b and -1/x^2 as c in the quadratic equation ax^2 + bx + c = 0 There are two solutions y = [-1/x + sqrt(1/x^2 + 4/x^2)]/2 and y...
Monday, February 26, 2007 at 9:30pm by Jill
Precalc stuff.. square root of z-1= square root of z +6 are you solving for z? square both sides then solve for z. that's my problem, i'm not sure how to solve for z. i need a process. it's not in my book or anything.
Wednesday, March 7, 2007 at 5:21pm by Blondie
5-5^2 = 5-25 =-20 The fifth term is just when n=5 I believe. What is the fifth term of the sequence a sub n=5-n^2? a)-11 b)-20 c)-7 d)-5 I believe that the answer that fits the best is d, but I could be wrong
Thursday, March 8, 2007 at 10:14pm by Rom
Evaluate (sin45 degrees)(cos30 degrees) / sec45 degrees a)5 b)7/3 c)1/2 d)7/2 My best guess is 1/2 but I'm not sure if I did the problem right. I found sin 45 and cos 30 multiplied the vvalues together and then divided them by sec45. My answer was 0.5303295 and I rounded that ...
Saturday, March 10, 2007 at 1:47am by raven31791
I have a couple questions, I need to know how to solve these type of problems. X^2 -4< X + 16 5/n+2 - 5/n = 2/3n 2X^3-x^2-6X + 1/ X^2 + 5x - 8 1) rearragne the terms to get x^2-x-20<0 (x-5)(x+4)<0 which means that one term can be negative, or -4<x<5 check that. ...
Thursday, June 14, 2007 at 5:47pm by <3 A
Is it possible to find a rational function that has x-intercepts (-2,0) and (2,0), but has vertical asymptote x=1 and horizontal asymptote of y=0? The horizontal asymptote and the x-intercepts parts stump me. If you can't reach y=0, then how can you get the x-intercepts? And I...
Saturday, July 7, 2007 at 12:08am by Pamela
I'm having trouble understanding a sine concept. For instance, I know that the sine of 15 is .25881. Likewise, the sine of 165 is also .25881. How can I find other values of sine that also equal .25881? Thank you very much.
Thursday, October 25, 2007 at 10:36pm by Jim
Hello, good afternoon. I need help with my precalc hw. we are learning about finding zeros I dont which method I should use for this problem: if i is a zero of x^3+3x^2+ix+(4+i) what do i do? synthetic divison? or long division? when i did long division i got a werid ...
Tuesday, October 14, 2008 at 4:06pm by Samya
PreCalc (still confused)
Hello and Happy Halloween! Trying to get this problem and could use some help. Find the dimensions of the rectangle with minimum perimeter if its area is 400 square meters. Find the least perimeter. I know that a rectangle has two sides that are equal and two other sides that ...
Sunday, November 1, 2009 at 1:01pm by Muffy
PreCalc (Just Can't Comprehend)
Find the dimensions of the rectangle with minimum perimeter if its area is 400 square meters. Find the least perimeter. I know that a rectangle has two sides that are equal and two other sides that are equal but I am unsure about what type of equation to use. I thought maybe I...
Sunday, November 1, 2009 at 9:41pm by MUFFY
I'm given some sort of curve with these points defined (-pi/2 , -1) and (pi/2,1) ok now I have to do this f(x+2) so I have to shift all the x cordinates over two... how do I do this -pi/2 - 2
Monday, November 16, 2009 at 5:58pm by PreCalc
Teach me how to express 5sqrt3 - 5i in polar form please. I don't want you to do the work for me. Just show me the steps I need to do the work properly on my own. Otherwise I will not pass this class or the exam when I enter college, and I do not want to retake PreCalc. Its a ...
Friday, April 13, 2012 at 3:44pm by tabby