QUESTION: 85

Option A
Option B
Option C
Option D
Option E

Answer(s): E

Explanation:

Since AB and CD are parallel lines cut by a transversal, anglef is equal to the sum of angles c and b.
However, angle f and angle g are not equal-- they are supplementary. Therefore, the sum of angles c and b is also supplementary--and not equal--tog.

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QUESTION: 86

If the lengths of the edges of a cube are decreased by 20%, the surface area of the cube will decrease by

20%.
36%.
40%.
51%.
120%.

Answer(s): B

Explanation:

The surface area of a cube is equal to 6e2, where e is the length of an edge of a cube. The surface area of a cube with an edge equal to one unit is 6 cubic units. If the lengths of the edges are decreased by 20%, then the surface area becomes cubic units, a decrease of

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QUESTION: 87

Simon plays a video game four times. His game scores are 18 points, 27 points, 12 points, and 15 points. How many points must Simon score in his fifth game in order for the mean, median, and mode of the ive games to equal each other?

12 points
15 points
18 points
21 points
27 points

Answer(s): C

Explanation:

For the median and mode to equal each other, the fifth score must be the same as one of the first four, and, it must fall in the middle position when the five scores are ordered. Therefore, Simon must have scored either 15 or 18 points in his fifth game. If he scored 15 points, then his mean score would have been greater than 15: 17.4. Simon scored 18 points in his fifth game, making the mean, median, and mode for the five games equal to 18.

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QUESTION: 88

Option A
Option B
Option C
Option D
Option E

Answer(s): A

Explanation:

To go from you would multiply the exponent ofg(2/5)by(-1/2)Therefore, to

go from 16 (the value ofg(2/5)to the value ofg(-1/5)multiply the exponent of 16 by(-1/5)The exponent of 16 is one, so the value ofg(-1/5) = 16to the(-1/2)power, which is1/4.

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Free SAT Section 2: Mathematics Exam Braindumps (page: 22)

QUESTION: 85

Explanation:

QUESTION: 86

Explanation:

QUESTION: 87

Explanation:

QUESTION: 88

Explanation: