Find the solution set of the system of linear equations represented by the augmented matrix. (if there is no solution, enter no solution. if the system has an infinite number of solutions, set
x4 = t
and solve for x1, x2, and x3 in terms of t.)
leftbracket4.gif 1 2 0 1 4
rightbracket4.gif
0 1 2 1 5
0 0 1 2 2
0 0 0 1 4
(x1, x2, x3, x4) = ( )

Akite is being flown at a 45 angle. the string of the kite is 120 feet long. how high is the kite above the point at which the string is held?

Strawberries cause two hours per pound kate buys 5 pounds he gets 20% off discount on the total cost how much does kate pay for the strawberries

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?