Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = -9x4 + 3x3 - 7x2 + 8x - 2
A. 0 or 2 positive; 0 negative
B. 0, 2, or 4 positive; 0 negative
C. 0 or 2 positive; 0, 2, or 4 negative
D. 0, 2, or 4 positive; 0, 2, or 4 negative
Answer: B
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Determine if the data in the table are linear or nonlinear.
A. linear B. nonlinear
Find A-1, if it exists.A = 
A. 
B. Does not exist
C. 
D. 
If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.r = 16 inches, ? = 90°, A = ?
A. 401.92 in2 B. 200.96 in2 C. 25.12 in2 D. 12.56 in2
Solve the problem.A town has a population of 2000 people and is increasing by 9% every year. What will the population be at the end of 8 years? Round answer to the nearest whole number.
A. 3656 B. 4344 C. 3440 D. 3985