QUESTION: 13

How does the area of a rectangle change if both the base and the height of the original rectangle are tripled?

The area is tripled.
The area is six times larger.
The area is nine times larger.
The area remains the same.
The area cannot be determined.

Answer(s): C

Explanation:

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QUESTION: 14

The equation is undefined when

Answer(s): A

Explanation:

An equation is undefined when the value of a denominator in the equation is equal to zero. Set x2 7x +18 equal to zero and factor the quadratic to find its roots:

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In the diagram above, angle A is congruent to angle BED, and angle C is congruent to angle D. If the ratio
of the length of AB to the length of EB is 5:1, and the area of triangle BED = 5 + 10, what is area of triangle ABC?

5a2+ 10
25a2+ 50
25a2+ 100
125a2+ 250
cannot be determined

Answer(s): D

Explanation:

Triangles ABC and BED have two pairs of congruent angles. Therefore, the third pair of angles must be congruent, which makes these triangles similar. If the area of the smaller triangle, BED, is equal to , then the area of the larger triangle, ABC, is equal to or25 . The area of

triangle ABC is 25 times larger than the area of triangle BED. Multiply the area of triangle BED by 25:

25(5a2+ 10) = 125a2+ 250.

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QUESTION: 16

The number p is greater than 0, a multiple of 6, and a factor of 180. How many possibilities are there for the value of p?

Answer(s): B

Explanation:

The positive factors of 180 (the positive numbers that divide evenly into 180) are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, and 180. Of these numbers, 8 (6, 12, 18, 30, 36, 60, 90, and 180) are multiples of 6.

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Free SAT Section 2: Mathematics Exam Braindumps (page: 4)

QUESTION: 13

Explanation:

QUESTION: 14

Explanation:

QUESTION: 15

Explanation:

QUESTION: 16

Explanation: