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MATH 54 QUIZ 11-
1. Express the given system of differential equations in matrix notation.
x'1 = -2x2 + x1 - 4x3
x'2 = 3x3 + x2 - x1
x'3 = -x1 + 2x3 - 3x2
2. Find a 4 × 4 matrix A with constant coefficients such that x(t) = is a solution to x'(t) = Ax(t).
3. Show that the following collection of vector-valued functions is linearly independent on R:
4. Find a general solution of the system x'(t) = Ax(t), where A =
5. Find the solution to the system x'(t) = x(t) which satisfies x(0) =
A man rows a boat 550 feet upstream against a constant current in 10 minutes. He then rows 325 feet downstream (with the same current) in 5 minutes. Find the speed of the current and the equivalent rate at which he can row in still water.
Describe a favorite recreational activity in terms of its iterative components, such as solving a crossword or Sudoku puzzle or playing a game of chess or backgammon. Also, mention any recursive elements that occur.
Find the slope and the y-intercept of the line represented by the equation: 2x + y = 14. Write the equation of a line in slope-intercept form with the slope of -4/5 and y-intercept (0, -3)
1. in one-way analysis of variance tests do larger test statistics result in larger p-values smaller p-values or
write up a statistics problem that describes a single-factor design preferably involving unicorns glitter zombies
the chandra satellite telescope orbits as much as 87000 mile above earth. this is about 13 of the distance of the
What is the null hypothesis? What is the alternative hypothesis? What is the type of test statistic? What is the degree of freedom?
A man invested a total of $22,000 in two investments. he made a profit of 7% on the first investment and 2% in the second investment. If his total profit was $920, what was the amount of each investment?
FInd the circulation of F= round the circle C with center at origin and radius 3 traversed counter clockwise.
Let G be a group (finite or infinite) and let a and b in G. Let o(a) represent the order of a. Suppose G is abelian and both a and b are of finite order. Show that ab is of finite order and o(ab) divides o(a)o(b).
Let D = {z: |z|
a representative of the american clothing industry recently made the following statement workers in asia often work in
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