Solve the problem.A certain noise has intensity 4.75 × 108 I0. What is the decibel rating of this sound? Use the formula 
where I0 is a faint threshold sound, and I is the intensity of the sound."
A. 9 decibels
B. 87 decibels
C. 77 decibels
D. 200 decibels
Answer: B
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Use synthetic division to decide whether the given number k is a zero of the given polynomial function.k = -3; f(x) = x4 - 6x2 - 27
A. Yes B. No
Solve the problem.Explain how the graph of y = log2 (x - 5) can be obtained from the graph of y = log2 x.
What will be an ideal response?
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) = 2x3 - 7x2 + 8x + 2
A. 0 positive; 1 or 2 negative B. 0 or 2 positive; 1 negative C. 0 or 1 positive; 2 negative D. 0 or 1 positive; 0 or 1 negative
Find the slope of the line that passes through the given two points. If the slope is undefined, state this.(1, 4) and (13, 19)
A. 
B. 
C. 
D. 