1,081 Answered Questions for the topic Equations

10/13/13

Solve the equation for m
Solve the equation for m and show all work    (m-9)/4 - (4m-14)/7 =2
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10/13/13

Solve the equation for t
Solve the equation for t and show all work    (4t2)/5=t/5+21/10
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10/13/13

Solve the equation
Solve the equation for x and show all work  (x2+2)/(3x2-5x+2)+-3/(x-1)=-5/(3x-2)
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10/12/13

Find the population
In 2006, the population of a country was 47.9 million people. From 2006 to 2050 the country's population is expected to decrease by 4.8%. Find the expected population of the county in 2050. Round... more
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10/12/13

The length of the ladder
A spotlight is mounted on the eaves of a house 24 feet above the ground. A flower bed runs between the house and the sidewalk, so the closest the ladder can be placed to the house is 18 feet. How... more
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Equations Graphs Word Problems

10/06/13

Equations in graphing?
Given the graph of an equations, where would you look on the graph to find the solutions to the equation that goes with the graph?   This word problem was on my test and I got it wrong, I know... more
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Equations

10/04/13

how do I write this equation in slope intercept form. -3x+3y greater than or equal to 69
I just need help I don't understand
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Equations

09/21/13

solve for x=8/9x+9=11
please solve step by step
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Equations

09/21/13

solve for x:3(6x+3)-2(x-3)=0
please solve step by step
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09/16/13

Solving Linear Equations in Three Variables
Solve the system:    2x-3y-z=5 -2x+3y+z=-5 8x-12y-4z+20   How I understand it is the 2x+-2x along with the -3y+3y and -z+z can cancel each other out.  I am having trouble figuring out what to... more
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Equations

09/13/13

windchill temp
a) T=10o C,V=9m/sec   b)T=0o C,V=15m/sec   c)T=10o C,V =20 m/sec     d) The formula to find the wind chill temperature is given by:                    10.45+ 10V-square root... more
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Equations

09/11/13

solve 2^(2x+1)-2^x=3
Solve for x
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Equations

09/10/13

algrbra answers
t2/3=4   5√x+1=3   2/3=2-  5x-3/x-1   √x+2-x=0
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Equations Simplify

09/04/13

Simplifying expressions
How would I, step by step, simplify an expression that looks like the following:   [15a^8b^6]      [2b^2]  _________       ______    [ab^3]        [3a^3b^8]   (assume that all variable in the... more
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Equations Functions

09/02/13

let g(x) = (1/5)^x. Solve g(x) = sqrt(5)
Answers given  {-1/2} {-1} {-2} {-3/2}   I only have two more weeks and I am brain dead here  
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08/17/13

what is -6 = 2/3z ?
help please i need help i dont understand and i need help quick thank you
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Equations

08/05/13

Find the inverse Laplace transform?
Find the inverse Laplace transform of F(s)=(2s+2)/(s^2+2s+5). Answer: f(t)=2e^-t*cos 2t
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Equations

08/04/13

Find the inverse Laplace transform?
Find the inverse Laplace transform of F(s)=3s/(s^2-s-6). Answer: f(t)=(9/5)e^3t+(6/5)e^-2t  
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Equations

08/04/13

Find the inverse Laplace transform?
Find the inverse Laplace transform of F(s)=2/(s^2+3s-4). Answer: f(t)=(2/5)e^t-(2/5)e^-4t Never mind, I now know how to do it. But can someone tell me how to find the answer on Ti-89 calculator?
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Equations

08/03/13

Find the Laplace transform?
Find the Laplace transform of f(t)=te^at. Answer: F(s)=1/(s-a)^2, s>a
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Equations

08/03/13

Find the Laplace transform?
Find the Laplace transform of f(t)=cos at, where a is a real constant. Answer: F(s)=s/(s^2+a^2), s>0  
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Equations

07/30/13

Find the solution?
Find the solution of 4x^2*y"+8xy'+17y=0, y(1)=2, y'(1)=-3. Answer: y=2x^(-1/2)*cos(2*lnx)-x^(-1/2)*sin(2*lnx) y=x^r y'=rx^r-1 y"=r(r-1)x^r-2 r=-1/2±2i What's the general solution for this?
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07/30/13

The population of the LessShy neighborhood has been growing steadily since 1984. In 1986, the population..
The population of the LessShy neighborhood has been growing steadily since 1984. In 1986, the population was 37200 people. In 1994, it was 42000 people. Find an equation in the form y=mx+b where x... more
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Equations

07/22/13

Algebra Equations
-9+n/4=-7.   Algebra equations for math
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Equations Math Algebra 2 Algebra

07/03/13

express this algebraically
example  the sum of x and y equals 3 more than z . Expressed algebraically= x + y = z + 3 Help! :( 1. simple interest is the product of "p" dollars, "r" percent interest, and "t" years. 2. the... more
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