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.F(x) = 8x5 - 5x4 + 4x3 - 9
A. 0, 2, or 4 positive; 0 negative
B. 1 positive; 1 or 3 negative
C. 1 or 3 positive; 1 or 3 negative
D. 1 or 3 positive; 0 negative
Answer: D
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Use the compound interest formula to compute the future value of the investment. Round to the nearest cent. $9000 at 1.25% compounded continuously for 7 years
A. $10,198.34 B. $9822.98 C. $9113.21 D. $1322.81
Solve the inequality. Write the solution set in interval notation.-x2 + 8x - 14 ? 0
A. (-?, -4 - 
] ? [-4 + 
, ?)
B. (-?, 4 - 
] ? [4 + 
, ?)
C. [4 - 
, 4 + 
]
D. [-4 - 
, -4 + 
]
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = -x2 
A. 
B. 
C. 
D. 
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 4
B. 
C. 
D. 533