Solve the problem.It has been found that the less income people have, the more likely they are to report that their health is fair or poor. The function 
models the percentage of Americans reporting fair or poor health, f(x), in terms of annual income, x, in thousands of dollars. Find and interpret f(31).
A. f(31) ? 13.5; 13.5% of Americans earning $31 thousand annually report fair or poor health.
B. f(31) ? 14.6; 14.6% of Americans earning $31 thousand annually report fair or poor health.
C. f(31) ? $14.6; 31% of Americans earning $14.6 thousand annually report fair or poor health.
D. f(31) ? 13.5; 31% of Americans earning $13.5 thousand annually report fair or poor health.
Answer: A
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For the given data value, find the standard score and the percentile.A data value 1.8 standard deviations below the mean.
A. z = -1.8; percentile = 3.59 B. z = -1.8; percentile = 96.41 C. z = -0.18; percentile = 42.07 D. z = 1.8; percentile = 96.41
Solve the problem.A deep sea diving bell is being lowered at a constant rate. After 8 minutes, the bell is at a depth of 600 ft. After 30 minutes the bell is at a depth of 2000 ft. What is the average rate of lowering per minute? Round to the nearest hundredth is needed.
A. 66.7 ft per minute B. 46.7 ft per minute C. 63.6 ft per minute D. 0.02 ft per minute
Solve the problem.The formula y = 
models the relationships needed to focus an image where y is the distance between the film and projector lens, x is the distance between the move screen and the projector lens, and f is the focal length. a) Sketch the graph of this rational function for f = 5 centimeters. 
b) Bob and Carol are showing home movies. Use the graph to describe the desired distance between the film and the projector lens as Carol moves the projector further from the screen.
What will be an ideal response?
Find the real solutions of the equation by factoring.16b3 - 35b = 8b2
A. 
B. 
C. 
D. 