Determine the possible number of positive real zeros and negative real zeros of the polynomial function using Descartes' rule of signs.f(x) = x5 - 2.8x4 - 16.87x3 + 3x2 + 35.9x - 12.957
A. 3 or 1 positive zeros, 3 or 1 negative zeros
B. 3 or 1 positive zeros, 2 or 0 negative zeros
C. 2 or 0 positive zeros, 3 or 1 negative zeros
D. 2 or 0 positive zeros, 2 or 0 negative zeros
Answer: B
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Solve the application. Write an expression to describe the situation and simplify the expression for the final answer.The stock market gained 58 points on Tuesday and lost 50 points on Wednesday. Find the difference between these changes.
A. -58 - (50) = -108; The difference is -108 points. B. 58 - (-50) = 108; The difference is 108 points. C. 58 - (50) = 8; The difference is 8 points. D. -58 - (-50) = -8; The difference is -8 points.
Solve.The approach ramp used by a daredevil motorcyclist for flying over a collection of flaming railroad ties has a rise of 63 feet for every 90 feet in horizontal distance. Find the grade of the ramp. Round to the nearest whole percent.
A. 75% B. 70% C. 14% D. 0.7%
Evaluate the square root. If the answer is not a real number, state so.
A. 1296
B. 6
C. 
D. not a real number
Determine whether the number is divisible by 2, 3, 4, 5, 6, 7, 8, 9, and/or 10.6298
A. 3, 4 B. 4 C. 2 D. 2, 3, 4