16.03.2017 Views

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

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

1 2 Practice <strong>Tests</strong> <strong>for</strong> <strong>the</strong> <strong>SAT</strong><br />

Practice Test Two Answers an d Exp l anations<br />

l05<br />

I<br />

(-, +) (+, +)<br />

(- , -) (+, -)<br />

20. D<br />

Difficu l ty: High<br />

Strategic A d vice: This one is hard to draw. Think logically<br />

and try to visualize <strong>the</strong> orange.<br />

Getting to t h e Answer:<br />

The first cut breaks <strong>the</strong> orange into 2 pieces. If you cut <strong>the</strong><br />

orange so that you cut <strong>the</strong> 2 halves into equal pieces, you<br />

have 4 equal quarters. Your next cut can cut <strong>the</strong> quarters<br />

into 8 equal pieces. There<strong>for</strong>e, 3 cuts can yield a maximum<br />

of 8 pieces, (D).<br />

Remembering this on Test Day will help you conquer any<br />

problems similar to this one.<br />

Getting to t h e Answer:<br />

A: (-x, +y) = negative product<br />

8: ( +x, +y) = positive product, eliminate (8)<br />

C: ( +x, -y) = negative product<br />

D: (-x, -y) = positive product, eliminate (D)<br />

E: (-x, +y) = negative product<br />

Looking at <strong>the</strong> relative distance from <strong>the</strong> origin, C is very<br />

far from <strong>the</strong> origin, so <strong>the</strong> absolute value of its coordinates<br />

is likely to be bigger than that of ei<strong>the</strong>r A or E. Since we<br />

know that <strong>the</strong> x-coordinate is positive and <strong>the</strong> y-coordinate<br />

is negative, <strong>the</strong>ir product is a negative number with a high<br />

absolute value, so it is <strong>the</strong> least of <strong>the</strong> products of <strong>the</strong><br />

coordinates of <strong>the</strong> given points.<br />

19. B<br />

Difficu l ty: High<br />

Strategic A d vice: You're looking <strong>for</strong> a way to get a and b in<br />

<strong>the</strong> same equation, without n. So solve <strong>for</strong> n in terms of a,<br />

<strong>the</strong>n substitute it into <strong>the</strong> equation <strong>for</strong> b.<br />

Getting to t h e Answer:<br />

a=3n + 4<br />

a-4=3n<br />

a-4<br />

- 3<br />

-=n<br />

b = 7 + 9n2 = 7 + 9 ( a - 422 = 7 + 9 (a - 422<br />

32 9<br />

= 7 + (a - 4)2 = 7 + a2 - 80 + 16<br />

=a2 - 80 + 23<br />

SECTION 4<br />

1. D<br />

Difficu l ty: Low<br />

As written, this sentence is a fragment. Choice (D) corrects<br />

this by replacing <strong>the</strong> gerund <strong>for</strong>m with hire. The verb in (8)<br />

doesn't agree with its plural subject, vineyards. Choice (C)<br />

does not address <strong>the</strong> error. Choice (E) is unnecessarily<br />

wordy.<br />

2. E<br />

Difficu l ty: Low<br />

Make sure that comparisons are structured to compare<br />

logical things. Here, universities are being compared to New<br />

York City. Choice (E) corrects this error by adding those in<br />

be<strong>for</strong>e New York City. Choice (8) is ambiguous and unclear.<br />

The verb did incorrectly makes New York City a subject.<br />

The comparison in (C) is awkward and incorrectly omits<br />

<strong>the</strong> object (universities). Choice (D) uses an ambiguous<br />

pronoun ones, which could refer to <strong>the</strong> universities or <strong>the</strong><br />

students.<br />

3. B<br />

Difficu l ty: Low<br />

There are several ways to correct a run-on sentence; making<br />

one of <strong>the</strong> independent clauses subordinate is one of <strong>the</strong>m.<br />

As written, this is a run-on sentence; <strong>the</strong>y in <strong>the</strong> second<br />

clause could also refer to ei<strong>the</strong>r <strong>the</strong> Lions or <strong>the</strong> Cowboys.<br />

Choice (B) corrects both errors by making <strong>the</strong> second<br />

clause subordinate. Choice (C) introduces an inconsistent<br />

verb tense. Choices (D) and (E) misuse <strong>the</strong> semicolon<br />

splice, which is only correct when used to combine two<br />

independent clauses.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!