Solve.A 52-kg skateboarder on a 1-kg board starts coasting on level ground at 5 m/sec. Let k = 3.2 kg/sec. How long will it take the skater's speed to drop to 1 m/sec?
A. 0.50 sec
B. 26.66 sec
C. -26.66 sec
D. 26.15 sec
Answer: B
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Determine whether the given relationship defines a function. If so, identify the independent and dependent variable, and why the relationship is a function.The balance in a checking account b at the close of business on a given day x.
A. Yes; x, b; there is one balance b on any given day x at the close of the business day. B. No
Solve the problem.The following scatter diagram shows heights (in inches) of children and their ages.Height (inches)
Age (years)What happens to height as age increases?
A. Height decreases as age increases. B. Height stays the same as age increases. C. Height increases as age increases. D. Height and age do not appear to be related.
Fill in the blank with one of the words or phrases listed below. Not all choices will be used.
The process of eliminating the radical in the denominator of a radical expression is called 
.
A. rationalizing the denominator B. like radicals C. conjugate D. principal square root
Find f (2) .
