Long before the Supreme Court decision legalizing marriage between people of the same sex, a substantial percentage of Americans were in favor of laws prohibiting interracial marriage. Since 1972, the General Social Survey has asked Do you think that there should be laws against marriages between negroes/blacks/African Americans and whites? In 1972, 39.3% of the adult U.S. population was in favor of such laws. The bar graph shows the percentage of Americans in favor of legislation prohibiting interracial marriage for five selected years from 1993 through 2002, the last year the data were collected. Source: Ben Schott, Schott’s Almanac 2007, Donnelley and Sons The formula p = − 2.5 t + 17 models the percentage of Americans, p, in favor of laws prohibiting interracial marriage t years after 1993. If trends indicated by this model continue, in what year did the percentage favoring such legislation decrease to 7%.
Long before the Supreme Court decision legalizing marriage between people of the same sex, a substantial percentage of Americans were in favor of laws prohibiting interracial marriage. Since 1972, the General Social Survey has asked Do you think that there should be laws against marriages between negroes/blacks/African Americans and whites? In 1972, 39.3% of the adult U.S. population was in favor of such laws. The bar graph shows the percentage of Americans in favor of legislation prohibiting interracial marriage for five selected years from 1993 through 2002, the last year the data were collected. Source: Ben Schott, Schott’s Almanac 2007, Donnelley and Sons The formula p = − 2.5 t + 17 models the percentage of Americans, p, in favor of laws prohibiting interracial marriage t years after 1993. If trends indicated by this model continue, in what year did the percentage favoring such legislation decrease to 7%.
Solution Summary: The author calculates the year in which the percentage of people in favor of the law decreased to 7%.
Long before the Supreme Court decision legalizing marriage between people of the same sex, a substantial percentage of Americans were in favor of laws prohibiting interracial marriage. Since 1972, the General Social Survey has asked
Do you think that there should be laws against marriages between negroes/blacks/African Americans and whites?
In 1972, 39.3% of the adult U.S. population was in favor of such laws. The bar graph shows the percentage of Americans in favor of legislation prohibiting interracial marriage for five selected years from 1993 through 2002, the last year the data were collected.
Source: Ben Schott, Schott’s Almanac 2007, Donnelley and Sons
The formula
p
=
−
2.5
t
+
17
models the percentage of Americans, p, in favor of laws prohibiting interracial marriage t years after 1993. If trends indicated by this model continue, in what year did the percentage favoring such legislation decrease to 7%.
a) Find the scalars p, q, r, s, k1, and k2.
b) Is there a different linearly independent eigenvector associated to either k1 or k2? If yes,find it. If no, briefly explain.
This box plot represents the score out of 90 received by students on a driver's
education exam.
75% of the students passed the exam. What is the minimum score needed to pass
the exam?
Submitting
x and Whickers Graph Low 62, C
62 66
70 74
78 82 86
90
Driver's education exam score (out of 90)
How many different rectangles can be made whose side lengths, in centimeters, are counting numbers and whose are is 1,159 square centimeters? Draw and label all possible rectangles.
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