Diagonalize the matrix A, if possible. That is, find an invertible matrix P and a diagonal matrix D such that 
A = 
A.
P = 
, D = 
B. Not diagonalizable
C.
P = 
, D = 
D.
P = 
, D = 
Answer: A
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Give a verbal description of the subset of real numbers represented by the following inequality and sketch the subset on the real number line. ? x ? 3 ?
A. x ? 3 denotes the set of all real numbers less than or equal to 3.
B. x ? 3 denotes the set of all real numbers greater than or equal to 3.
C. x ? 3 denotes the set of all real numbers less than or equal to 3.
D. x > 3 denotes the set of all real numbers greater than 3.
E. x ? 3 denotes the set of all real numbers less than or equal to 3.
Solve the problem.A bike road race starts at an elevation of 830 feet and passes through 5 stages where the elevation changes by 185 feet, -270 feet, 584 feet, -134 feet, and 568 feet. At what elevation does the race end?
A. 1349 feet B. 1763 feet C. -2571 feet D. 2571 feet
Provide an appropriate response.True or False? If x > 9 then 3x > 27.
A. True B. False
Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find cos A when a = 3 and b = 7.
A. 
B. 
C. 
D. 