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MATHEMATICAL KNOWLEDGE (PICAT) EXAM QUESTIONS
Qs and Ans - Expert- Explanation - ing score -11 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: If 2^x = 32, then x =
- 2
- 5
- 16
- 30
- 32
Answer:
- 5
Question 2: What is 5x times (3x^2 -5)?
- 3x^2 + 5x - 5
- 15x^2 - 5
- 15x^3 - 5
- 15x^3 - 25x
Answer:
- 15x^3 - 25x
Question 3: if x+3y=7 and y=2, then x equals?
- 1
- 2
C. 3-1/2
- 13
- ( x +3(2)= 7 and 1+6=7)
Answer:
- 1
Question 4: If 4x+12=0, then x =
A. -16
B. -12
- -3
- 13
Answer:
- -3
Question 5: if x=-2 and y=3, what is the value of 2y-x?
- 4
- 8
- -6
- -7
Answer:
- 8
Question 6: -25 - 8
A. -33
B. -17
- 17
- 33
Answer:
- 33
Question 7: What is the sum of 3x^3 - 2x + 8, 2x^2 + 5x, and x^3 + 2x^2 - 3x - 3?
Answer:
4x^3 + 4x^2 + 5
Question 8: If x=2, and y = -3, then xy^2 =
A. -12
- 12
- 18
D. -18
Answer:
- 12
Question 9: If x=4, which of the following expressions does NOT equal 9 ?
- x - (-5)
- x + 5
- 2x + 1
- x - 13
Answer:
- x - 13
Question 10: Solve the following equation for d:b =cd
- d= b + c
- d=bc
- d= b/c
- d=c/d
Answer:
- d=b/c
Question 11: what is 3a^2 + a^2 added to 6?
- 3a^2 + 2a + 6
- 4a^2 + a + 6
- 5a^2 + a + 6
- 12a^2 + a + 6
Answer:
- 4a^2 + a + 6
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