05/20/13

Find the work done by the force?
A constant force F=<-1, 2, -5> acts on a particle as it moves from A(2, 4, 1) to B(-2, 1, 3). Find the work done by the force. I have trouble for finding the dot products.
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05/20/13

Probability Question - Please Help
Two diseases A and B have spread within a certain population. Weknow that 15% of this population have the disease A, 20% of thispopulation have disease B and 25% have at least one of the two... more
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05/19/13

find the coordinates of the midpoint of the segment wuth the given pair of endpoints J(6,6) and K(2,-4)
need help finding the endpoints 
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05/19/13

how do i refund the unused portion of my account
need a refund for the unused portion of the tuoring account i prepaid
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05/17/13

line k passes through the two points (-7,-4) and (8,1) what is the equation of a line perpendicular to line m passing through (0,4)
need the equation
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05/11/13

Finding volume of a tetrahedron
The edge is 12 and the height is 12 for the tetrahedron. I know that tetrahedron consists of 4 equilateral triangles. I have a problem with finding the volume because i had two answers. first I... more
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05/11/13

How to find the volume of a frustum?
The frustum has: radii of the top circle base is 9. the radii of the bottom circle is 12. The slant height is 6.  I know you draw the frustum into a cone by extending it. Then you do the volume of... more
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05/11/13

What's the orbital period of the satellite?
A satellite circles planet X in an orbit having a radius of 10^8 m. If the radius of planet X is 10^7 m and the free fall acceleration on the surface of X is 20 m/s^2, what's the orbital period of... more
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05/10/13

need help on solving stem- and- leaf- plots
ok so i need some help understanding these see the way my teacher is show how to solve them is making it very difficult to understand and i make thing so much harder so i need some to dum stem-... more
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05/09/13

Use synthetic division and the Remainder Theorem to evaluate P(c)
Use synthetic division and the Remainder Theorem to evaluate P(c), where  P(x)=x^4 + 7 x^3 + 3 x^2 + 27 x + 48 ,  cC7 quotient =? remainder=? p(c)= ?
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05/09/13

domain of function in interval notation
f(x) ={1x^{3}-13 x^{2}+26 x+112}/{1 x^{3}+10 x^{2}-63 x-648}
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05/09/13

The perpendicular bisector of a segment is a line?
to a segment at the segments?
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05/08/13

Area of trapizoids
What is the formula for the area of trapezoids and parallelograms?I was trying to do that lesson but I got stuck.
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05/08/13

equation of a locus
Find the equation of a locus of point whose distance from the point (2,-2) is equal to its distance from the line      x-y=0    
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05/08/13

Limit questions
Evaluate the limit.. Lim Δx-->0   sin ( x + Δx ) - sin x / Δx  
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05/08/13

Limits.....
Lim θ-->Π/2     cot θ - cos θ / cos3θ
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05/08/13

How do you factor the difference of two squares?
How do you factor the perfect square trinomial? How do you factor the sum and difference of two cubes? Which of these three makes the most sense to you? Explain why.
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05/07/13

What is a shape that belongs to both of these groups:"all sides are the same length" and " no square corners?"
What are the shapes that have sides that are the same length and don't have square corners?  
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05/07/13

find the radius and center of the cirles
x2+y2 -4x-6y-12=0  
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05/06/13

Solve by factoring. 4x2 - 5x + 1 = 0
i need help asap
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05/05/13

Find the area of the triangle?
Find the area of the triangle with vertices A(2, 1), B(5, 3), and C(6, 4).
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05/04/13

Evaluate the double integral?
Evaluate the double integral from 0 to 1 and x^2 to 1 of (x^3)(sin(y^3)) dy dx by reversing the order of integration. I know how to solve the integral, I just don't know how to set up the new... more
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05/04/13

Factor the trinomial completely.
y^3-11y^2+28y Select the correct choice below. (a) y^3-11y^2+28=? (b) The polynomial is prime.
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05/04/13

Completely factor the polynomial.
5x^3+35x^2+5x+35=?
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05/04/13

give me a formal proof of comparison test for improper integrals
please i need a formal proof of comparison test for improper integrals..
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