09/25/13

Write the equation in vertex form: 3x^2+4y^2-36x+24y+132=0
I need to find the vertex form of the equation
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09/25/13

solving quadratic equations?
Solve: x^3 +2x^2 +x > or = 0   Step by step assistance would be amazing!
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09/25/13

Help me with practice test questions
1. A project proposal stated that it would provide at least $20,000 in annual returns for the next 3 years but requires an initial investment of $50,000. Will its approval be worthwhile if the cost... more
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09/24/13

one point which must be on the graph of each of the following functions.
the point (7,4) is on the graph of y=g(x) give the coordinates of one point which must be on the graph of each of the following functions.   1/4 g(x)  g(1/4x) -g(4x) -4 g(x)
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09/24/13

find the asymptotes of the hyperbola x^2-4y^2=4
I need help finding the asymptotes of the hyperbola
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09/23/13

What was his initial speed?
A man jumped horizontally from a window and reached the ground 0.80 s later. If he landed 3.6 m from the base of the building, what was his initial speed? How high was the window above the ground?  
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09/23/13

How high is the fort?
A cannon ball leaves a fort with an initial horizontal speed of 1.8*10^2 m/s and strikes a ship in the sea below 7.2 s later. How high is the fort above sea level?
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09/22/13

Find the integral?
∫ [1, 0]ds from 0 to t   (it's matrix with 1 on top, 0 on bottom.)
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09/22/13

Word problem Math
Marie has a rectangular board of 18 inches by 23 inches around which she wants to put a uniform border of shells. If she has enough shells for a border whose area is 86 square inches, determine the... more
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09/22/13

a cement walk of constant width is built around a 20-ft by 40-ft rectangular pool. The total area of the pool and the walk is 1500ft sq. Find the width of walk
Evaluating Quadratics
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09/21/13

Find the general solution?
Find the general solution of x'=(2, 3, -1, -2)x+(e^t, t). (this is 2x2 matrix with 2 and 3 on left, -1 and -2 on right. And I know how to find the general solution for the 2x2 matrix but not the... more
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09/20/13

Hypothesis excel worksheet
a random sample is selected from a normal population. The population mean is µ=60 and the population standard deviation is σ=15. After a treatment is given to the members of the sample, the sample... more
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09/20/13

Find its time of flight?
A shell was fired from ground level with an initial speed of 350 m/s at an angle of 30 degrees to the horizontal. Assuming there is no air resistance, calculate:   a) its time of flight; b) its... more
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09/20/13

Find the bullet's range?
A bullet was fired horizontally from the top of a 150 m tall tower at 280 m/s. Find the bullet's range and time of flight. Determine also its speed on impact with the ground below.
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09/19/13

Please help me with this math problem?
Find the general solution of x'=(2, 3, -1, -2)x+(e^t, t). (2 and 3 on the left, -1 and -2 on the right. e^t on the top, t on the bottom.)    
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09/18/13

Please help me with this math problem?
Let J=(λ, 0, 1, λ), where λ is an arbitrary real number. (2x2 matrix, λ and 0 on the left, 1 and λ on the right.)   (a) Find J^2, J^3, and J^4. (b) Use an inductive argument to show that... more
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09/18/13

What math subject is after this?
What math subject comes after Fourier Analysis for physics and electrical engineering majors?
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09/18/13

Please help me with this math problem?
Find a fundamental matrix for x'=(-3/4, 1/8, 1/2, -3/4)x. (2x2 matrix, -3/4 and 1/8 on the left, 1/2 and -3/4 on the right. The eigenvalues are -1 and -1/2. I got -7/4a+1/2b=0, 1/8a-7/4b=0 for the... more
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09/18/13

A={a,b,h} what is the number of distinct subsets of set A
What are all the subsets of a
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09/18/13

Please help me with this math problem?
Find a fundamental matrix for x'=(3, 2, -2, -2)x. (2x2 matrix, 3 and 2 on the left, -2 and -2 on the right.)
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09/17/13

Please help me with this math problem?
Find the critical value or values of α where the qualitative nature of the phase portrait for x'=(alpha, -1, 10, -4)x changes. (this is 2x2 matrix, alpha and -1 on the left, 10 and -4 on the right,... more
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09/17/13

Please help me with this math problem?
Find the eigenvalues in terms of α for x'=(5/4, alpha, 3/4, 5/4)x. (this is 2x2 matrix, 5/4 and alpha on the left, 3/4 and 5/4 on the right. I got up to r^2-(5/2)r+25/16-(3/4)alpha=0, what's next?)
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09/17/13

Let F (x) = integral from 0 to x^(1/3) of function sq root (1 + t^4) dt. F'(0) = ?
Let F (x) = integral from 0 to x^(1/3) of function sq root (1 + t^4) dt. F'(0) = ?   Solution manual says: F (x) = f(g(x)), where g(x) = x^(1/3) and f (z) = integral from 0 to z of function sq... more
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09/16/13

HELP!!! What is the maximum number of oranges the family can get to the market using ONLY the camel to transport them?
More About the Problem: A family grows oranges in a desert oasis. They have 3,000 oranges and the market is 1,000 miles away. They only have one camel to transport oranges, but there are two... more
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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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