Let P = 
, X = 
, and T = 
, where all the elements are real numbers. Use these matrices to determine whether the statement is true or false for 2 × 2 matrices.k(X + T) = kX + kT, for any real number k.
A. True
B. False
Answer: A
Mathematics
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If 
represents the temperature, in degrees Fahrenheit, of a potato in the oven after t minutes, what units are associated with the average rate of change for T with respect to ?t?
What will be an ideal response?
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Find the linearization L(x) of the given function for the given value of a.f(x) = 7x - 3, a = -6
A. L(x) = -6 B. L(x) = 7 C. L(x) = 7x D. L(x) = 7x - 3
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Solve the inequality and write the solution set using interval notation; then graph the solution set on a number line. v2 - 11v + 30 ? 0
A. (-?, 5]
B. (-?, 5] ? [6, ?)
C. [6, ?)
D. [5, 6]
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Find the least common denominator.
, 
A. 2(x - 3)(x + 2) B. 2(x + 3)(x + 2) C. 2(x - 3)(x - 2) D. 2(x + 3)(x - 2)
Mathematics