Math Quiz

What is the discriminant of the quadratic equation 2x²-4x+3=0?

• -4

• 4

• 8

• -8

State Thales theorem.

• The sum of the angles of a triangle is 180 degrees.

• In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

• The opposite angles of a cyclic quadrilateral add up to 180 degrees.

• The ratio of the sides of similar triangles is equal.

Calculate the length of tangent from a point 15 cm away from the centre of a circle of radius 9 cm.

• 12 cm

• 3 cm

• 9 cm

• 6 cm

If P(E)=0.02, then what is the probability of 'p(not E)'?

• 0.98

• 0.02

• 1.00

• 0.50

Find the mode of the data: 3, 2, 4, 3, 2, 4, 3, 2, 4, 2.

• 4

• 2

• 1

• 3