The percentage of 18-to-25-year-old smokers in the United States has been declining at a constant rate since 1974. If about 47% of this group smoked in 1974 and about 29% smoked in 1994, find a linear equation that models this decline. If this trend continues, what percentage will smoke in 2007.
?
A. 0%
B. 19.4%
C. 2.7%
D. 17.3%
E. none of these
Answer: D
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Provide an appropriate response.If a hypothesis test is conducted at a significance level of 0.05, which of the following statements is true?
A. The probability that the result will be significant is 0.05. B. The probability that the null hypothesis will be rejected when it is false is 0.05. C. The probability that the null hypothesis will be rejected when it is true is 0.05. D. The probability that the null hypothesis will not be rejected when it is false is 0.05.
Find the length of the curve.x = 3 cos t, y = 3 sin t, 0 ? t ? ?
A. 9? B. ? C. 6? D. 3?
Calculate the number of distinguishable strings that can be formed with the stated letters.2 c's and 6 d's
A. 12 B. 28 C. 56 D. 8
Divide.(-16.6708) ÷ (-2.84)
A. 2.84 B. 5.87 C. -5.87 D. -2.84