If x/4 – 2 = 3, what is x?
A12
B16
C20
D24
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Archives: MCQs
Evaluate log2(64).
A4
B5
C6
D8
If 2^(2x) = 16, what is x?
A1
B2
C3
D4
Simplify: (x^2 – 9) / (x – 3)
Ax - 3
Bx + 3
Cx + 9
Dx - 9
Find the discriminant of the quadratic equation 2x^2 – 4x + 3 = 0.
A-8
B-4
C8
D40
If a + b = 10 and a – b = 4, what is the value of a * b?
A16
B21
C24
D28
If 3^x = 81, what is x?
A2
B3
C4
D5
What is the expansion of (x + y)^3?
Ax^3 + y^3 + 3xy
Bx^3 + 3x^2y + 3xy^2 + y^3
Cx^3 + x^2y + xy^2 + y^3
Dx^3 + 3xy + y^3
Solve for x: 5x – 3 = 2x + 12
A3
B4
C5
D6
A price is increased by 10% and then decreased by 10%. What is the net percentage change in price?
A0% change
B1% increase
C1% decrease
D2% decrease