Mathematics, 24.08.2019 11:30, UPenn2544
1) what are the real zeroes of x3 + 6 x2 – 9x – 54?
a. 1, 2, 27
b. 3, -3, -6
c. -6, 3, -6
d. 2, -1, 18
e. 3, 3, -6
2) an entrepreneur estimates that the total profit (profit = total revenue minus total cost) from his proposed company will be given by the function p(x) = x3 – 4x2 + 3x – 12,
where p is in hundreds of dollars and x is the number of years elapsed after the company starts operations. in how many years (x) will the company break even
(no profit, no loss)?
a. 1 year
b. 2 years
c. 3 years
d. 4 years
e. 6 years
3)how many negative roots can this polynomial function possibly have?
f(x) = 5x4 – 7x3 – x2 – 3x – 2
a. 1
b. 5 or 3 or 1
c. 3 or 1
d. 4 or 2 or 0
e. 2 or 0
Answers: 1
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1) what are the real zeroes of x3 + 6 x2 – 9x – 54?
a. 1, 2, 27
b. 3, -3, -6
c. -...
a. 1, 2, 27
b. 3, -3, -6
c. -...
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