For n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x successes. Round your answer to four decimal places.n = 9, p = 0.7, x = 8
A. 0.1556
B. 0.1479
C. 0.1712
D. 0.2023
Answer: A
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Find the stock turnover at cost and at retail. Round to the nearest hundredth.
A. Turnover at cost = 5.12 Turnover at retail = 5.17 B. Turnover at cost = 2.36 Turnover at retail = 2.34 C. Turnover at cost = 5.17 Turnover at retail = 5.12 D. Turnover at cost = 2.19 Turnover at retail = 12.09
Simplify the expression by combining like terms. 25.6x - 12.5 - 10.9x + 21.8
A. 14.7x + 9.3 B. 24x C. 15.7x + 9.3 D. 14.7x + 10.3
Factor the trinomial.4x2 + 23x - 35
A. (4x - 40)(4x - 5) B. (x - 7)(4x - 5) C. (x + 7)(4x - 5) D. (5 - 4x)(4x - 5)
Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.3x + 5y - 2w=-132x + 7z - w=-14y + 3z + 3w=1-x + 2y + 4z=-5
A. {(
, -2, 0, 
)}
B. {(-1, - 
, 0, 
)}
C. {(
, - 
, 0, 
)}
D. {(1, -2, 0, 3)}