Roman C.

Math(pythagoream Theorem)

06/02/13

Pythagorean triple

do the side lengths 9,16,25 equal a Pythagorean triple?

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Math

06/02/13

Establish each identity

csc * cos = cot and 1-(sin^2/1+cos) = cos

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Math

06/02/13

solve the triangles

1) c = 26 , <B = 49 , <c = 53 2) <A = 56 , b = 12 , a = 11 3) <A= 94 , <C = 22 , b=5 4) <C = 58, a = 12, b = 16 5) <B = 68 , b = 14, c = 18

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Functions Gradient

06/02/13

What is the gradient?

Consider the function S(H, T, V)=(V+10)e^(-1/H)+(T-80)^2+V^3. What is the gradient of the function S(H, T, V) at the point (1, 81, 3)?

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Math Equations

06/01/13

mathematical equation

If a shirt cost $47.50 with a markup of $34.00 what is the percent markup based on cost?

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Math Help

05/29/13

Find the maximum and minimum values?

Find the maximum and minimum values of the function f(x, y)=xy^2 subject to the constraint x^2+y^2=4. gradient of f=<y^2, 2xy> gradient of g=<2x, 2y> I'm stucked.

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Probability

05/29/13

probability question- In a proposed business venture, a businesswoman estimated there is a 55 percent chance that she will make $61000 and a 45 percent chance t

In a proposed business venture, a businesswoman estimated there is a 55 percent chance that she will make $61000 and a 45 percent chance that she will lose $66,000. Determine her expected value.

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Completing Squares

05/28/13

Completing the square

Why can't you factor a quadratic function completely all the time instead of completing the square.

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Math Equations

05/28/13

Needed help with this math problem ?

Does f (x) = 5x + 9 Does f (x) represent a polynomial function yes or no?

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Math Equations

05/28/13

What do you understand about the zero product property?

How is the concept of zero-products applied in order to solve quadratic equations? Describe the four steps in solving quadratic equations?

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Algebra 2

05/27/13

If the discriminant of a quadratic equation is negative is the root two imaginary roots?

For example, if "b^2-4ac = a negative number," are the root(s) one or two real rational or irrational, or imaginary roots?

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Statistics

05/27/13

in a game of chance, a player blindly selects (without placement) two bills from a box containing four bills ($1, $2, $5, and $10) and gets to keep the larer of the two bills selected. The game... more

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Fractions Help

05/26/13

how to do fraction dividing multipying

multiplying fractions also reduce to the lowest terms

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Other

05/26/13

Use Lagrange multipliers to find the shortest distance?

Use Lagrange multipliers to find the shortest distance from the point (2, 0, -3) to the plane x+y+z=1. (x-2)^2+y^2+(z+3)^2 g=x+y+z=1 <2(x-2), 2y, 2(z+3)>=λ<1, 1,... more

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Algebra 1

05/25/13

Identify the solution(s) of the system of equations

Identify the solution(s) of the system of equations 3x+2y=4 5x-4y=3

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Algebra 1

05/25/13

x+5y=6 5x-5y=6

Identify the solution(s) of the system of equations x+5y=6 5x-5y=6

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Maths(alegbra)

05/23/13

How do you take a factor out of polynomial?

The problem I have in particular in f(x) = 3x^3 - 5x^2 - 58x + 40 given that f(3) = -198 and f(5) = 0 find all the solutions of f(x) = 0

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Mathe

05/22/13

what exactly is

what exactly differentiation and integration is????how its helpful in our life.

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Operations And Expression

05/21/13

Which of the following is equivalent to 5+i/1+3i

A. 4-8i/5 B. 4-7i/5 C. 1-7i/5 D. -1-7i/4

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Area Parallelograms

05/20/13

Find the area of the parallelogram?

Find the area of the parallelogram spanned by the vectors <1, 0, -1> and <-2, 2, 0>. I have troubles with dot products.

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Physics

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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Probability

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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Geometry

05/19/13