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December 22, 2014

Search: Precalc HW (NO IDEA HOW TO SOLVE)

Number of results: 23,498

precalc
1. Solve |2x + 5|< 9
November 3, 2009 by kim

precalc
solve x/x^2-4 - 1/x+2=2
December 7, 2011 by 95

PreCalc
Solve for the variable m^2 + 2m +3 > = 0
December 12, 2007 by LT

PreCalc
How do i solve for the variable 3x= sqrt5x+1
December 12, 2007 by LT

precalc
Solve sinx+cosx=0 Thanks!
March 6, 2008 by Andrea

precalc
how do u solve for this? sqrt(-10i+12)
October 14, 2008 by Samya

Precalc
(2^(x))(5)=10^(x) steps too please how to solve
February 2, 2011 by Amy~

precalc
solve the system of equations: x^(2)+y^(2) = 12 xy = -4
April 7, 2011 by Haley

precalc
How do you solve log5 sqrt125?
April 26, 2011 by Ashley

Precalc
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. ...
June 14, 2007 by <3 A

algebra
Solve the indicated variable: 1. Volume of a cone: solve for h: V=ir^2h/3 2. Temperature formula: solve for C: F=9/5C+32 pleaseeeee help me solve these! plzzz! i have nooo idea how to do these. THANKS! =)))
September 20, 2009 by kitty kat

precalc
Solve log subscript4 112 = x.
September 1, 2010 by Anonymous

Precalc
how to solve 5(2^(3x)) = 8 Steps too please answer is ln 1.6 / 3 ln 2
January 26, 2011 by Amy

Precalc: Logarithms
Solve for x? xln(x) + 1 > x + ln(x) e^1/x > 1 Any help would be appreciated. THANK YOU!
August 3, 2008 by Joe

Precalc.
solve the equation on the interval [0,2pi) sin^2x=1
March 19, 2010 by Anonymous

Precalc
There's f(x) = (2x+3)/(x+4) and g(x) = (4x-3)/(2-x) Solve for x in f(g(x)) I tried this but I could not end up with the answer being x
January 6, 2011 by Anonymous

Precalc
how to solve for x: 500e^(0.3x) = 600 Steps please.
January 26, 2011 by Amy

Precalc (complete the squares)
(2x+1)^2 +4=0 solve the equation. help please :(
November 11, 2011 by Cindy

precalc
solve 5^y=4^y+3.Round your answer to the nearest tenth.
January 14, 2012 by 95

Precalc
Solve the following equation for x in terms of ln and e. (2e^3)-6-(16e^-x)=0
March 3, 2014 by Aly

Math- Precalc
could someone please help me solve this problem... e^x - 12e^(-x) - 1
November 15, 2010 by Alex

precalc
Hi. Can someone help me with this? Simplify: (sin^2x)(cos^2x)+(sin^4x) The answer is sin^2x, but I have no idea how to get there! Thanks!
February 18, 2008 by Andrea

Check my precalc
what is the f inverse of f(x)= ln(x-3) I got y= e^x - 4 Solve 8 times 10^(2x-7)=3 I do not know how to do this. Do i get 8 and 10 with the same base? How? Thanks!
November 18, 2012 by Rebekah

PreCalc
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...
February 26, 2007 by Jill

Math
Given g(x) = print_coeff(m,1)x print_const(b), find g(print_coeff(n,1)a) I was told that the answer for this is a. However, I have no idea how to solve it. Please help me understand. I have no idea how to interpret what you have written. It is not standard algebraic notation. ...
August 10, 2007 by Doralis

precalc
solve the following logarithmic equation: 2lnx= log base e^3 343
June 30, 2013 by Anonymous

PreCalc
Solve the system by the addition method -10x^2 + 10y^2-320=0 30x^2 + 6y^2 - 336 = 0
December 11, 2007 by LT

Math - PreCalc (12th Grade)
Use the inverse matrix to solve this system of equations: 4x+3y=7.5 7x+9z=14 4y-z=8.3 4,3,0 7,0,9 0,4,-1
March 21, 2014 by Shawna

Precalc/Trig
I have no idea how to solve this one problem: Round to two decimal places. Two observers 25 feet apart, sight to the top of the tree. If the angle of elevation to the top of the tree from the observer closest to the tree is 30 degrees and the angle of elevation from the ...
December 1, 2014 by Heather

Precalc
1. Find the exact value 3sin(invertangent (-1)) I got 0. Given 0<x<orequalto 1, determine the value of inversine (x) + inversetan (squareroot(1-x^2)/x) I really have no idea how to do that. I am trying to draw a diagram but cant figure it out. Thanks!
February 11, 2013 by Rebekah

Precalc
1. Solve log (4x) = log (2) + log (x-1) the fact that this is x-1 and not + is really messing me up because i keep getting a negative number and that isnt possible 2. Solve: absolut value of(x^2 -4x-4) = 8 thanks so much!!! I have been studying and my final is tomorrow. these ...
December 20, 2012 by Rebekah

Math
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.
March 7, 2007 by Blondie

Algebra
Solve 3x +1 < 5 or 3x +1 > 4 By saying "solve," is it asking for me to show it on a line and in interval notation? Here's another: f(x) < 3 and f(x) > 4, where f(x) = 1/2x - 7 I have no idea how to solve this! Please walk me through it! Thank you so much!
January 26, 2009 by Harper

Precalc
How to solve for x: 2^(2x) + 2^(x) -12 = 0 Steps too I tried solving this but I ended with ln(12) / 2ln(2) + ln(2) but the real answer is supposed to be ln(3) / ln(2) or 1.585
January 27, 2011 by Amy

Trig/Precalc
solve 6=e^0.2t Round your answer to the nearest hundredth Someone please help me - I don't understand this problem at all!
April 19, 2012 by tabby

PRECALC QUESTION
Solve for "x" and "y" given the following matrix equation: (2x, 0.5y, -2, 1) * (3, -2, 0, 1) = (-24, 19, -6, 5) (the matrices are going from left to right, they're all 2x2's.)
May 25, 2014 by Aly

Math
Solve P=P(base 0)e^kt Solve for t? I have no idea how to solve this
October 17, 2014 by Eiban

precalc/trig
Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places. 20 log(2x+2)=45
December 5, 2011 by Alexander

Trig/Precalc
Find the greatest possible value of 5cos(x)+6sin(x). I know that it would be a good idea to look for identities that are in the form of acos(x)+bsin(x), but I can't seem to find any. Other than that I don't really know where to go with this problem. Any help would be much ...
December 16, 2014 by majorbill

Precalc
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 ...
October 14, 2008 by Samya

Precalc
Solve for x log[1/3](x^(2) + x) - log[1/3] (x^(2) - x) = -1 Steps too please. so far I tried this and I got 3 = (x+1) / (x-1)
January 27, 2011 by Amy

Precalc with Trig
What value(s) of x from 0 to 2pi solve the following equation: cos squared x - cos x - 6 = 0
April 11, 2013 by Natalie

Algebra
How would I solve: 1/3(D+3)=5 I know you need to find the recipicile, but I have no idea how to solve this.
October 17, 2010 by June

Maths
solve the following pair of simultaneous equation: (x/a)+(y/b)=1 (x/b)+(y/a)=1 can someone help please?i have no idea how to solve it =( x/(ab) + y/b^2 = 1/b x/(ab) + y/a^2 = 1/a Subtract one from the other y(1/b^2 - 1/a^2) = 1/b - 1/a y(1/b + 1/a)(1/b - 1/a) = (1/b - 1/a) ...
July 11, 2007 by Emma

Precalc
Solve for x log[1/3](x^(2) + x) - log[1/3] (x^(2) - x) = -1 Steps too please. so far I tried this and I got 3 = (x+1) / (x-1) I asked this question before, but what would x= ?
January 27, 2011 by Amy

Math
h=at-.25vtsquared ,solve for a Please help me, I have no idea how to solve!
October 4, 2009 by Petronella

Algebra
To solve the system of equations, which expression could be substituted for x into the first equation? 3x-5y=14 x+4y=10 a)10-4y b)4y+10 c)(1/4)x+(5/2) d)(-1/4)x+(5/2) I have another problem just like this one so if you could explain how to solve this one I can (hopefully) ...
July 27, 2007 by maddie

PRECALC
solve for x in the interval zero to two pi. 2 sin 4x = 1 i got 5 pi/24 and pi/ 24 but my teacher said that there should be eight solutions. what would those be and how would i find it"
October 3, 2012 by greeny

PreCalc
Use the following conditions to create a sketch of the function by hand. a. f(x) is increasing from (-infinity,-4)union(-4, infinity) b. there is a vertical asymptote at x=-4 c. There is a horizontal asymptote at y=2 d. f(0)=-5; f(1)=-3; f(3)=1 I have an idea of what this ...
September 30, 2009 by MUFFY

Algebra 2
How do I answer this f(x) = x - 3 (x + 4)^(1/2) and am asked how to solve for x when y = -5 I have no idea how to do this and know that I could just solve it by guess and checking but I want to know how to do this algebraically when plugging in the -5 and trying to solve for x...
May 26, 2009 by Dylan

Geometry
I have no idea how to solve this problem. The question says: Determine whether the points A(4,5), B(-3,3), C(-6,-13) and D(6,-2) are the vertices of a kite. Explain your answer. Can you please help me with the steps to solve it and understanding it.
February 18, 2008 by Avalon

Trig/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 ...
April 13, 2012 by tabby

Precalc
solve the equation: log base 10 of x - log base 10 of (7-4x)=2 Please help i have been stuck on this for awhile!
November 26, 2013 by Alison

Precalc
How to solve this inequality and graph? (2x+5)/(x+1) > (x+1)/(x-1) would I first get rid of x-1 and divide x+1 over to get (2x+5)(x-1)/(x+1)(x+1) > 0 if so, then who would I graph this?
September 24, 2010 by Amy~

precalc: elimating the parameter
hi, i'm having trouble understanding the concept of eliminating the parameter to obtain an equation in x and y alone. can anyone please solve this problem and explain it? thank you so much. x = 3T-4 y= = 1-2T (0<t<3) those signs are actually less than or equal to.
July 9, 2008 by joseph

calculus
1) Solve for x in terms of k: log3(x) + log3(x+7) = k; 3 is the base 2) e^(x+5) = e^(x) + 6, solve for x. Please help, I have no idea how to do these and I've tried several times!
October 2, 2010 by Cornelius

precalc pre ap
If theta is a rotation angle that terminates in quadrant ll and sin of theta is 5/13, find cos of theta and tan of theta. Use the first Pythagorean identity to solve for cos of theta and use quotient identity to solve for tan of theta.
December 2, 2012 by lore

PreCalc
Find the amount of time required to double a dollar investment at 7.72%, if the interest is compounded continuously. 4.49 years 8.98 years 17.96 years I'm not understanding this, I got 3.9 years when I tried to solve this.
August 28, 2010 by Anonymous

Precalc HW (NO IDEA HOW TO SOLVE)
Low Earth orbiting satellites orbit between 200 and 500 miles above Earth. In order to keep the satellites at a constant distance from Earth, they must maintain a speed of 17,000 miles per hour. Assume Earth's radius is 3960 miles. a. Find the angular velocity needed to ...
November 19, 2007 by Amie

Please help me solve it. Math
solve for the value of x: 6log (x^2+1)-x=0. please help me because I do not have any idea in this topic.
April 8, 2013 by Jeconiah

Precalc
Okay for this question I know I am supposed to use the law of sines. But how can i tell what side is what? In right triangle ABC, a = 120 and c = 140, and C is the right angle. Solve the triangle. Round to the nearest tenth, if necessary.
August 5, 2011 by anna

check my precalc
#1. solve x^2-1<0 I got (-1,1) #2 x(x+1) >20 I got (-infinity, -4) U (5,infinity) #3 what is the domain of this function? f(x)= squre root of (x-3x^2) i got [-1/3,0] thanks!!!
October 1, 2012 by rebekah

Chemistry
What NaCl concentration results when 209 mL of an 0.660 M NaCl solution is mixed with 492 mL of a 0.270 M NaCl solution? __ mol/.209 L = 0.660 M __ mol/.492 L = 0.270 M .. I have no idea how to solve this. I have no idea why I even set up the equation above when it's asking me...
April 9, 2012 by Katherine

Algebra III
3^2x - 6 x 3^x + 9 = 0 Solve for x I have no Idea what to do
February 18, 2008 by Matt Eaton

Math equation
I have no idea how to solve this. f(x)=3x-4 a) f(10) b) f (-2) c) f (0) d) (b)
May 17, 2012 by Mary

Social Studies--Check My 1 Answers Please--
What was "Manifest Destiny"? a. the idea that Americans of European descent were superior to Native Americans b. the idea that woman were destined to attain political equality with men c. the idea that America was destined to expand to cover the entire continent ******* d. the...
February 26, 2014 by Wendy

Precalc/Triangles
Draw and solve any triangles satisfying alpha = 29 degrees a = 7 c = 14 I realize I need to draw a non-right triangle and label the sides but I am completely confused one what to do after I draw the triangle
November 13, 2012 by Greg

Algebra 2
solve log2(3x-1)-log2(x-1)=log2(x+1) i have absolutely no idea how to solve this. can anyone help me, please?
November 9, 2010 by Kelly

Math
solve for the indicated letter. z=11-y, for y the solution is y= No idea
May 18, 2009 by scooby9132002

algebra I
Please help I have no idea where to start. Solve for h 5h + 5+ 4h = 36
February 20, 2011 by MATH HELP PLEASE

ap calc
If f(x)=e^x, g(x)=sin(x), and h(x)=f(g(x)), then h'(pi/2)=? Please help I have no idea how to solve
December 21, 2014 by Anonymous

Math
I have no idea how to start. I cannot remember how to solve this for anything. 3x/4+6=-12
September 8, 2009 by Karen

algebra
I have a problem that I have no idea how to solve. The instruction say to solve and check the given equation by rational exponents. The equation is: x to the 5/2 power = 32. Can you show me how to do this step by step?
December 7, 2011 by ron

math
Q=3x^2+4y^2 if x+y=7 what is minimum value for Q. I have absolutely no idea how to solve this problem.
February 12, 2012 by summer

Please solve it.Logarithm
Please help me because I do not any idea in Logarithm topic.Solve for the value of X: 6log(x^2+1)=5
April 2, 2013 by Seth

English
Noun means a person,place thing or idea. List 3 things for each. Person: teacher,doctor,nurse Place: park,school,store Thing: pen,notebook,book Idea: I need help with the idea Please help Thank you! idea: Peace, tranquility, hope, love, hatred. Ideas might be beauty, ...
December 18, 2006 by Muskan

english
Click on the box to choose whether each sentence restates the key idea expressed in the key sentence. Key Idea: When hot weather arrives and the nation takes to the outdoors, mishaps multiply. Drowning is the fourth most frequent cause of accidental deathin the summer. restate...
March 1, 2013 by ty

URGENT MATH help
(x^2y^6-3)^2 .....PLEASE HELP ME I HAVE NO IDEA HOW TO SOLVE THIS IVE BEEN DOING IT FOR HOURS
February 18, 2009 by jake

math.
-0.2x<-12 please solve this for me. showing the steps so i can get a better idea of how to do this. This is not the original question.
October 27, 2010 by heather.

8th grade math
I have no idea how to solve this problem. Can someone help me??? 3x+3y=-6(this is a negative 6) 7x+4y= 1
December 21, 2010 by lila

Algebra
(x-3)/(x^2-4x+3) Hello My name is Megan Watt, and I have no idea how to solve this. I am so lost.
February 16, 2011 by Anonymous

Algebra
(x-3)/(x^2-4x+3) Hello My name is Megan Watt, and I have no idea how to solve this. I am so lost.
February 16, 2011 by Megan Watt

Please help me!!!! maths
Solve for x: log5(x-2)+log8(x-4) = log6(x-1). I do not have any idea on this topic.
April 3, 2013 by Seth

English
I have to write an essay on second hand lion about an important idea in the film and why it is a worthwhile idea in the film. I want to do the importance of the past because of the flash backs do you think this is the right idea and if so what should my 3 paragraphs be about
July 26, 2011 by Aryaman

the big idea of energy
i have to do an assesment about sound. i have to include the big idea of energy. i have no clue what it is! HHEELLPP MMEE!! What do you mean when you say "the big idea of energy"? I know that sound is created by vibrations, but I'm not sure thats exactly what you are looking ...
December 5, 2006 by Anon

Science (big idea of energy)
What is the big idea of energy????? It says : for level 6: "Explained the reaction using the big idea of energy" what does it mean by the big idea of energy????
October 1, 2007 by person

pre algebra
solve and check the following equation:I have no idea as to how to answer this. 69g-60=5g-2-g
June 9, 2009 by Kim

algebra
can someone help me understand how to solve this... i have no idea what to do! why are the letters in the problem? factoring strategy 9x^2 + 4y^2
July 26, 2010 by vera

english
1. An analogy helps clarify a complex idea by: A. presenting several definitions of the idea. B. comparing the idea with a simpler one C. breaking down the idea into smaller pieces D. pointing our a single common trait between two topics. I think it's B? 2. Which of the ...
April 19, 2011 by melissa

Math
I need to use the Gaussian Elimination to solve a system of equations, but I have no idea on how to do that. I remember doing these in high school, but since its been a while I can't remember exactly how to do it. Here's the system of equations I need to solve using it: -4x + ...
July 20, 2014 by N/A

calculus
Solve for all real values of x. 3tan^2x = 3^1/2 tan x I have no idea how to approach this problem.
January 24, 2010 by Tracy

ap calc
the curve y=ax+ b/x has a relative minimum at the point (1,4). find the values of a and b. please help. I have no idea how to solve this.
November 9, 2014 by Anonymous

AP CALC
the curve y=ax+ b/x has a relative minimum at the point (1,4). find the values of a and b. please help. I have no idea how to solve this.
November 9, 2014 by Anonymous

ap calc
For the curve f(x)=xln(x)+ (1-x)ln(1-x), find the value of x in the interval 0<x<1 where f(x) has a minimum. Please help I have no idea how to solve.
December 21, 2014 by Anonymous

Precalc/Trig
2 roads intersect at an angle of 60 degrees. A friend's mail box is 434 feet from that intersection and your mailbox is on the other road and is 525 feet from the intersection. How far is it from your mailbox to your friend's mailbox? I got 1016.66 feet, but that is wrong. ...
December 4, 2014 by Heather

Precalc with Trig
What value(s) of theta (0 less than or equal to theta less than or equal to 2pi) solve the following equation: cos squared theta - cos theta - 6 = 0
April 7, 2013 by Natalie

chemistry
There is a titration of 5.00 mL .010 M NaOH with .005 M HCl. Indicate the pH of the initial and final solutions and the pH at the stoichiometric point. What volume of HCl has been added at the stoichiometric point and the halfway point of the titration? I have no idea how to ...
December 3, 2011 by Betty

maximum and minimum problems when function unknown
Hi, can anyone please help me with this problem, i have no idea what to do! The question is: a window frame is in the shape of a semicircle joined to a rectangle. Find the macimum area of a window using 300 cm of framework. i can usually solve these sorts of questions when i'm...
May 21, 2007 by elle

business and finance
An eletronics store wants to order at least 3 times as many DVD players as VHS players. Write an inequality expressing this relationship. Define the variable you use. I have no idea on how to solve this. Can somebody show me how to solve this problem? DVD players > 3*VHS ...
March 23, 2007 by Carmela

math
how to solve for x in terms of the other variables in this equation?Can anyone please teach?I got no idea...Thanks a lot! 3cx+8d^2=2d(2x+3c)
February 14, 2008 by Malisa

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