Knowledge Questions with Correct
Answers
1: If x = 8, what's the value of y in the equation y = (x2 ÷ 4) − 2?
A. 14
B. 16
C. 18
D. 20 -ANSWER - 14
2: The cube of 5 is
A. 125
B. 25
C. 15
D. 50 -ANSWER - 125
3: 2.5 × 33 =
A. 22.5
B. 75.0
C. 67.5
D. 675.0 -ANSWER - 67.5
4: The fourth root of 16 is
A. 4
B. 1
C. 3
D. 2 -ANSWER - 2
5: What's the equation of a line that passes through points (0, -1) and (2, 3)?
A. y = 2x − 1
B. y = 2x + 1
C. x = 2y − 1
D. x = 2y + 1 -ANSWER - A
6: (12 yards + 14 feet) ÷ 5 =
A. 12 feet
, B. 51⁄5 feet
C. 10 feet
D. 21⁄2 yards -ANSWER - 10
7: x3 × x4 =
A. x12
B. 2x7
C. 2x12
D. x7 -ANSWER - D
8: (x + 4)(x + 2) =
A. x2 + 6x + 6
B. x2 + 8x + 8
C. x2 + 8x + 6
D. x2 + 6x + 8 -ANSWER - D
9: 1.5 × 103 =
A. 45
B. 150
C. 1,500
D. 15 -ANSWER - 1500
10: Which of the following is a prime number?
A. 27
B. 11
C. 8
D. 4 -ANSWER - 11
11: What's the mode of the following series of numbers? 4 4 8 8 8 10 10 12 12
A. 9
B. 8
C. 11
D. 10 -ANSWER - 8
12: If a = 4, then a3 ÷ a =
A. 4
B. 12
C. 64
D. 16 -ANSWER - 16