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Consider the matrix A of the linear transformation T in two dimensional space that rotates all vectors 45 degrees in the clockwise direction, and then shrinks their horizontal component by a factor of two.a) Write the matrix A by transforming the canonical basis e1, e2 (unit vectors e1 and e2).b) Think of T as the composition of two simpler transformations: rotation and stretching. Write the matrix for each, and check that their product equals A.c) Describe in words the action of the transformation S which is inverse to T . Use your description of S to write its matrix B. Check that the matrix B is indeed the inverse of A.
Find the length L and width W (with W leq L) of the enclosure that is most economical to construct.
Prepare an equation for the number of cups you sell as a function of the price you charge - Write an equation for the number of cups you sell as a function of the price you charge. Denote "C" for number of cups, and "P" for the price you charge.
why can't I search by subject instead of school? I just want some precalc study resources for my daughter, who is in high school. The organization of this site makes no sense. Isn't there a search box??
Suppose you estimate the quotient 472 ÷ 58 using 500 ÷ 50 and using 420 ÷ 60. Which estimate should give a high estimate? Which estimate should give a low estimate? Explain the reasoning.
Working with probability distributions and expected values. Suppose 5 apples in a barrel of 25 apples are known to be rotten.
A pool measuring 8 meters by 22 meter is surrounded by a path of uniform width. If the area of the pool and the path combined is 392 square meters, what is thw width of the path.
How do you make a decision in this situation? Also, how can one come up with the probability of success (or failure)?
It is a common experience to hear the sound of a low flying airplane, and look at the wrong place in the sky to see the plane. Suppose that a plane is traveling directly toward you at a speed of 200 mph and an altitude of 3,000 feet
The population of a community is known to increase at a rate proportional to the number of people present at time t
Can you make a problem and show a complete solution about this topic.
A random sample of 700 NAU students in Flagstaff found 287 NAU students who drink coffee daily. Find a 95% confidence interval for the true percent of NAU students in Flagstaff who drink coffee daily. Express your results to the nearest hundredth ..
The cost per unit of producing each product will be determined by whether a new union labor contract passes or fails. The cost per unit of each product, giving each contract result is shown in the following pay off table.
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