Question 1 of 8 48 total questions
What is the value of (1/2)¸¸¸
Explanation Answer: B
(1/2)Î?¸= 2¸= 8.
If y varies directly as x and y=12 when x=3, find y when x=5
Explanation Answer: C
k=4, y=4Î5=20.
The solution set of x¸ - 3x - 10 = 0 is
A {-5, 2}
B {5, 2}
C {-5, -2}
D {5, -2}
Explanation Answer: D
(x-5)(x+2)=0 ?¸x=5 or x=-2.
Evaluate log3 81
Explanation Answer: B
3^4 = 81, so log3 81 = 4.
Angle in degrees: what is the sum of angles in a triangle?
A 90 degrees
B 180 degrees
C 270 degrees
D 360 degrees
Explanation Answer: B
The sum of interior angles of any triangle is always 180 degrees.
What is the next number in the sequence: 2, 4, 8, 16, ?
Explanation Answer: B
Each term doubles the previous: 16 ¸2 = 32.
Simplify: 3/4 + 2/5
Explanation Answer: A
3/4 = 15/20 and 2/5 = 8/20. Sum = 23/20.
The mean of 5 numbers is 12. If one number is 20, what is the mean of the remaining 4?
Explanation Answer: C
Total sum = 5 ¸12 = 60. Sum of remaining 4 = 60 - 20 = 40. Mean = 40/4 = 10.
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