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

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Section 81<br />

Practice Test Twelve<br />

1057<br />

10. At 2 PM in Littleville, New York, it is 7 PM in<br />

Williamshire, England. A satellite orbiting Earth<br />

is visible in Littleville at 7 AM (Littleville time) but<br />

does not cross <strong>the</strong> sky over Williamshire until 6 PM<br />

(Williamshire time). A second satellite is seen over<br />

Williamshire at noon (Williamshire time) and<br />

takes <strong>the</strong> same amount of time to become visible<br />

in Littleville. When, in Littleville time, does <strong>the</strong><br />

second satellite become visible?<br />

(A) 11 AM<br />

(B)<br />

(C)<br />

1 PM<br />

5 PM<br />

(D) 6 PM<br />

(E) 11 PM<br />

11. Some clay is shaped into a sphere with a radius of 2<br />

inches. If more clay is added to <strong>the</strong> original sphere<br />

so that <strong>the</strong> radius is increased by 4 inches, <strong>the</strong>n<br />

<strong>the</strong> volume of <strong>the</strong> new sphere is how many times<br />

greater than <strong>the</strong> volume of <strong>the</strong> original sphere?<br />

(A) 3<br />

(B) 8<br />

(C) 27<br />

(D) 64<br />

(E) 208<br />

12. If g(t) = t2 - 4, <strong>the</strong>n <strong>the</strong> graph of g(t) crosses <strong>the</strong><br />

x-axis when t equals<br />

(A) -2 only<br />

(B)<br />

(C)<br />

0 only<br />

2 only<br />

(D) -2 and 2 only<br />

(E) -2, 0, and 2<br />

13. If22x- 3 = 8, <strong>the</strong>n what is <strong>the</strong> value of x?<br />

(A) 0<br />

(B)<br />

(C) 2<br />

(D) 3<br />

(E) 4<br />

14. The populations of two species of bacteria in a<br />

petri dish vary inversely. If <strong>the</strong>re are 1 ,000 bacteria<br />

of species A when <strong>the</strong>re are 500 bacteria of species<br />

B, how many bacteria of species B are <strong>the</strong>re when<br />

<strong>the</strong>re are 2,000 bacteria of species A ?<br />

(A) 250<br />

(B) 500<br />

(C) 750<br />

(D) 1,000<br />

(E) 2,000<br />

15. If a= 3(2c2 + 3c + 4) and b =-c+ 4, what is a in<br />

terms of b ?<br />

(A) 6b2 - 48b + 96<br />

(B) 6b2 - 57b + 132<br />

(C) 6b2 - 57b + 144<br />

(D) 6b2 - 9b - 132<br />

(E) 6b2 - 9b + 144<br />

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