Determine the possible number of positive real zeros and negative real zeros of the polynomial function using Descartes' rule of signs.f(x) = x4 - 16
A. 0 positive zeros, 1 negative zero
B. 1 positive zero, 1 negative zero
C. 1 positive zero, 0 negative zeros
D. 0 positive zeros, 0 negative zeros
Answer: B
Mathematics
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A. Prime B. Neither C. Composite
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Provide an appropriate response.The equation 
gives the position s in feet above the ground, where t is the number of seconds elapsed after a ball is projected upward from a building. Determine the height of the building, if possible. Explain your reasoning.
What will be an ideal response?
Mathematics
Evaluate the rational expression.
when x = -2, y = -9
A. - 
B. 
C. 
D. - 
Mathematics
Convert the units using unit fractions.42,240 ft = 
mi
A. 211.2 B. 8 C. 8.5 D. 9
Mathematics