The chart shows the number of research articles in the prominent journal Physics Review that were written by researchers in Europe during 1983 - 2003 (
represents 1983).
?
?
Which of the following logistic functions best models the data? (?t is the number of years since 1983.) Try to determine the correct model without actually computing data points.
?
(A)
?
(B)
?
(C)
?
(D)
?
__________
?
According to the model you selected, at what percentage was the number of articles growing around 1984?
?
__________%
What will be an ideal response?
A; 16
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Establish the identity.csc u - sin u = cos u cot u
What will be an ideal response?
Find an equation of the ellipse that satisfies the given conditions.
Foci: (0, ± 1), vertices (0, ± 6)
Factor by grouping.6x2 - 15x + 4x - 10
A. (3x + 2)(2x - 5) B. (6x - 2)(x + 5) C. (6x + 2)(x - 5) D. (3x - 2)(2x + 5)
Suppose you make napkin rings by drilling holes with different diameters through two wooden balls (which also have different diameters). You discover that both napkin rings have the same height t as shown in the figure. Use cylindrical shells to compute the volume of a napkin ring created by drilling a hole with radius d through the center of a sphere of radius D and express the answer in terms of t.
