01/01/13

isosceles triangle:x+120+(2y+20)=180?
I need to know the value of x and y. Thanks!    
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01/01/13

Given the formula V=Pir^2h
rearrange the formula to make r the subject of the formula Solve the equation: 2x^2+3x-2=0
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01/01/13

after subtracting of a number from its double,we get 32 more than the original number. find the number.
equations of one variable
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12/31/12

-6 < n/9 -5 = Solve each inequality and graph it's solution.
Solve the inequality and graph. 
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12/31/12

the area bounded by x=1 and y=0 and the curve y=x.e^x^2 is
the answer is e/2 please confirm give solution
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12/30/12

I have a math problem. I hardly know where to start. Can you help?
Here it is.  Wow..., this is really hard to read for  me. How many close friends do you have? Suppose that the number of close friends adults claim to have varies from person to person with mean 9... more
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12/30/12

Mark weighs 74 pounds. Together, he and his sister weigh six more pounds than three times the weight of his sister. What is the weight of marks sister?
w= weight of marks sister
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12/30/12

Consider f(x)=x^2/x^2+a, a>0. Determine the effect on the graph of f if a is varied?
consider f(x)=x^2/x^2+a, a>0. Determine the effect on the graph of f if a is varied Does this mean that... A) Each y value is multiplied by a B) As a increases, the vertical tangent lines move... more
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12/30/12

Quadratic equation formula
Question: Solution of quadratic equation formula, recall if ax^2+bx+c=0 then x=-b±√b^2-4ac/2a Use the quadratic formula to solve x+2/4+3/x-1=7
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12/29/12

Which compound has the least ionic character?
1.) KI 2.)HCl 3.) MgS 4.) NO
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12/29/12

Let f"(x)=4x^3 -2x and let f(x) have critical values -1, 0, and 1.?
Let f"(x)=4x^3 -2x and let f(x) have critical values -1, 0, and 1. Determine which critical values give a relative maximum How do you figure this out and which is the right answer and why? a) -1 b)... more
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12/29/12

Use the graph of f(x)= x^2/x^2-4 to determine on which of the following intervals Rolle's Theorem applies?
How do you figure out this problem and which answer is right and why? Choices: a) [0,3] b) [-3,3] c) [-3/2,3/2] d) [-2,2] e) none of these
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12/23/12

How to solve linear eq's in 3 variables for consistency or inconsistency?
matrix method would be appreciated.
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12/23/12

How do you write the general conic form equation of a parabola?
The answer must be set equal to zero and the only information given is the vertex and the focus
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12/20/12

solving a system of eqauations by substitution
solve this system of equations by substitution 2x^2-11x+6=y y=3x-5
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12/20/12

Central Angle and Depth Relation Calculus
how is the relationship between the central angle theta and the depth of an amount of liquid in a cylinder tank on its side h= r(1-cos(theta/2)?
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12/20/12

how do you find the zeros for f(x)=6x^4-13x^3+13x-6
need to know how to find zeros
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12/20/12

whats 4.375 as a percent
just some math(:
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12/20/12

-7xy2/28x5y
Find the domain of the rational functions -7xy2/28x5y  
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12/19/12

Find A. f(g(x)) B.g(f(x))
f(x)=-x+5  g(x)=4x+2
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12/19/12

Find all of the zeros of the polynomial function.
Can anyone show me how to work this with a caculator g(x)=x^3+4x^2-5x-20?
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12/18/12

Given the following rational function
Given the following rational function, finda. the horizontal asymptote(s),b. the vertical asymptote(s), if any, andc. the oblique asymptote(s), if any.f(x)=x^2+3x+2/x+2
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12/18/12

how many books do you need to buy to make the cost the sam at club a and club c.
 club a has the first book free and the rest 8 dollars and club c the first two books cost 10 dollars and the rest 6 dollars
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12/18/12

proof by stokes theorem
use stokes theorem to evaluate F*dR where F(x,y,z)= xyi+x^2j+z^2k and C is the intersection of paraboloid z=x^2+y^2 with plane z=y with counterclockwise orientation looking down the positive z axis.
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12/18/12

6-2x=5x-9x+6 ?
i dont understand how to solve it 
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