A large number of female llama were studied. It was found that this species of llama has a mean gestation period of 350 days with a standard deviation of 11 days. (Gestation period is defined as the time from conception to birth.) Use this to information to solve the problem.
What percent of llamas have gestation periods between 339 and 372 days?
A. 95%
B. 63.5%
C. 84%
D. 81.5%
Answer: D
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Solve the problem.Find an equation of a parabola that contains the points (6, 2), (5, 0), and (7, 0).
A. f(x) = x2 - 24x + 60 B. f(x) = -2x2 + 20x - 70 C. f(x) = -x2 + 20x - 70 D. f(x) = -2x2 + 24x - 70
Solve the problem.Fred Smith bought 125 shares of Acme Steel at $38.25 per share and 435 shares of Kafka Enterprises at $74 per share. Find the total amount that he paid, assuming he was charged a commission of 0.75%.
A. $36,833.11 B. $37,094.11 C. $36,746.11 D. $37,248.54
Write the whole number in standard form.Eight thousand, one hundred seventy-six
A. 8076 B. 80,176 C. 800,176 D. 8176
Solve the problem.In the town of Milton Lake, the percentage of women who smoke is increasing while the percentage of men who smoke is decreasing.Let x represent the number of years since 1990 and y represent the percentage of women in Milton Lake who smoke. The graph of y against x includes the data points (0, 16.6) and (13, 19.98). Let x represent the number of years since 1990 and y represent the percentage of men in Milton Lake who smoke. The graph of y against x includes the data points (0, 28.8) and (14, 25.86). Determine when the percentage of women who smoke will be the same as the percentage of men who smoke. Round to the nearest year. What percentage of women and what percentage of men (to the nearest whole percent) will smoke at that time?[Hint: first find the slope-intercept
equation of the line that models the percentage, y, of women who smoke x years after 1990 and the slope-intercept equation of the line that models the percentage, y, of men who smoke x years after 1990] A. 2018; 23% B. 2020; 23% C. 2014; 24% D. 2016; 23%