Question 16 correct 875 points out of 875 flag

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Question 16 Correct 8.75 points out of 8.75
Flag question Question text Use Descartes' rule of signs to determine the total number of real zeros and the number of positive and negative real zeros. ( Hint : First factor out x to its lowest power.) f ( x ) = 5 x 11 + 2 x 9 + 9 x 7 - 9 x Select one: 6
Question 17 Correct 8.75 points out of 8.75 Flag question Question text Solve the problem. f ( x ) = )
b. Write an equation for f -1 ( x c. Write the domain of f -1 in interval notation Select one: )
Question 18 Correct 8.75 points out of 8.75 Flag question Question text Solve the problem. There were 2,300 applicants for enrollment to the freshman class at a small college in the year 2010. The number of applicants has risen linearly by roughly 170 per year. The number of applications f ( x ) is given by f ( x ) = 2,300 + 170 x , where x is the number of years since 2010.
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