Factor completely, or state that the trinomial is prime.3x2 - 27x + 60
A. (x - 4)(3x - 15)
B. 3(x - 20)(x + 1)
C. 3(x - 4)(x - 5)
D. prime
Answer: C
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A cleaning process is removing salt from a pool. The amount S, in pounds, of salt remaining after t hours is given in the following table. Use exponential regression to model the amount of salt remaining as a function of time. Round your answer to two decimal places. t 1.38 4.99 8.95 12.60 15.70 S 23.62 12.48 7.10 3.41 2.10?
A. 
B. ?
C. ?
D. ?
Answer the question(s) based on the following situation: For a population of 2000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 590 and standard deviation ? = 70.A score of 700 has an approximate standardized value of
A. 10. B. -1.57. C. 110. D. 1.57. E. none of these
Find the exact value of the expression if ? = 60°. Do not use a calculator.g(?) = sin ?Find [g(?)]2.
A. 1
B. 
C. 
D. 
Evaluate the expression.2!4!
A. 8 B. 48 C. 72 D. 24