Provide an appropriate response.Given the transition matrix: 
A B C DP = 
P4 = 
Find the probability of going from state C to state B in four trials.
A. 0.0396
B. 0.0144
C. 0
D. 0.756
Answer: C
Mathematics
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Factor by grouping.x2 - 4x - 5x + 20
A. (x - 4)(x + 10) B. -9x(x2 + 20) C. (x - 4)(x - 5) D. (x + 4)(x - 5)
Mathematics
Factor using the formula for the sum or difference of two cubes.8x3 - 1
A. (2x - 1)(4x2 + 1) B. (8x - 1)(x2 + 2x + 1) C. (2x - 1)(4x2 + 2x + 1) D. (2x + 1)(4x2 - 2x + 1)
Mathematics
Find the exact value of the trigonometric expression without the use of a calculator.If cos ? = - 
, 
< ? < ? and sin ? = - 
, ? < ? < 
, find the exact value of tan (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Simplify the decimal expression.18(2.6)(0.6)
A. 2.808 B. 280.8 C. 2808. D. 28.08
Mathematics