Graph.y = 53 - x
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem. Use a calculator with an LN or a LOG key.The height in meters of girls of a certain tribe is approximated by 
where t is the girl's age in years and 
Estimate the height (to the nearest hundredth of a meter) of a girl of the tribe 4 years of age.
A. 1.12 m B. 0.52 m C. 0.77 m D. 0.96 m
Identify the problem with the method used to obtain a random sample.Karine is a market researcher who is interested in the opinions of the adult residents of her town regarding a new freeway. She obtains a sample of 120 adults by interviewing every 20th adult who leaves the library .
A. The sample is too small. B. By choosing every 20th person she introduces bias into the sample. Not all of those leaving the library have an equal chance of being selected. C. The sample is biased. People leaving the library are not representative of all residents of the town.
Solve the inequality. Express your answer using interval notation.4x + 5 < 37
A. (-?, 8)
B. (8, ?)
C. (-?, 8]
D. [8, ?)
Find the mode.Number of phone calls made each day: 10, 26, 1, 22, 14, 26, 47, 36, 34
A. 26 calls B. 23 calls C. 22 calls D. no mode