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12.Practice.Tests.for.the.SAT_2015-2016_1128p

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Section 71<br />

Practice Test Nine<br />

795<br />

9. If a solution of iodine and alcohol contains<br />

4 ounces of iodine and 16 ounces of alcohol,<br />

how many ounces of alcohol must evaporate<br />

so that <strong>the</strong> ratio of iodine to <strong>the</strong> solution is 2 to 3?<br />

(A) 6<br />

(B) 7<br />

(C) 8<br />

(D) 10<br />

(E) 14<br />

0<br />

•<br />

Note: Figure not drawn to scale.<br />

10. In <strong>the</strong> figure above, circle 0 is inscribed in square<br />

ABCD. If <strong>the</strong> circumference of circle 0 is 41t, what<br />

is <strong>the</strong> area of <strong>the</strong> shaded region?<br />

(A) 1t - 2<br />

(B) 4 - 1t<br />

(C) 4 + 1t<br />

(D) 16 - 41t<br />

(E) 16 + 41t<br />

11. Lines m and n are parallel. Iflines m and n are cut<br />

by three different transversals, what is <strong>the</strong> least<br />

number of points of intersection that can occur<br />

among <strong>the</strong> five lines?<br />

(A) 3<br />

(B) 4<br />

(C) 5<br />

(D) 6<br />

(E) 8<br />

t 11<br />

., "'<br />

.,, .,,<br />

.. Ill 9<br />

o<br />

t § 7<br />

...O ..c:<br />

s =<br />

=·<br />

13 •<br />

5<br />

z 3<br />

•<br />

•<br />

•<br />

•<br />

1980 1983 1986 1989 1992 1995<br />

Year<br />

12. A biologist surveyed <strong>the</strong> deer population in Smith<br />

Park every three years. The figure above shows her<br />

results. If dis <strong>the</strong> number of deer present in <strong>the</strong><br />

park and tis <strong>the</strong> number of years since <strong>the</strong> study<br />

began in 1980, which of <strong>the</strong> following equations<br />

best represents <strong>the</strong> deer population of Smith Park?<br />

(A) d =<br />

(B) d =<br />

(C) d =<br />

(D) d = (100)24<br />

(E) d = (100)21<br />

100 + 2t<br />

100 + 200t<br />

100 + 20t2<br />

t<br />

y<br />

13. The figure above shows <strong>the</strong> graph of r(x) . At what<br />

value(s) of x does r(x) equal O?<br />

(A) -5 only<br />

(B) -1 only<br />

(C) 1 only<br />

(D) 1 and 5<br />

(E) -5 and -1<br />

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