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The kinetic energy, KE, of an object travelling at v velocity can be modeled by the equation KE = mv2, where m is the mass of the object. If an object is moving at a velocity of 9, and it has a kinetic energy of 120, about how great is the object's mass?

(A) Between 0 and 1

(B) Between 1 and 2

(C) Between 2 and 3

(D) 6

(E) 13

The Correct Answer
Explanation

Which of the following is a factor of the polynomial 2x2 – 3x – 5 ?

(A)x – 1 (B)​2x – 3 (C)2x – 5 (D)2x + 5 (E)3x + 5

Correct Answer: C

Which inequality best represents the following graph? pinexam test

(A)−1.5 > x > −1 (B)x ≤ 0 (C)−0.5 > x > 0 (D)−1.5 < x ≤ 0 (E)−1.5 ≤ x ≤ 0

Correct Answer: D

In a geometric sequence, the quotient of any two consecutive terms is the same. If the third term of a geometric sequence is 8 and the fourth term is 16, then what is the second term?

(A)-8 (B) -4 (C) 2 (D) 4 (E) 8

Correct Answer: D

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