Math Quiz

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

• -4

• 8

• -8

• 4

State Thales theorem.

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

• The opposite angles of a cyclic quadrilateral add up to 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 ratio of the sides of similar triangles is equal to the ratio of their corresponding angles.

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

• 12 cm

• 9 cm

• 3 cm

• 6 cm

What is the ratio of the volumes of a cone and a cylinder if the height of the cone is half the height of the cylinder and they have equal base radii?

• 1:6

• 1:2

• 1:4

• 1:3

Match the following trigonometric ratios: Sin 30⁰, Tan 45°, Sec 60°

• p - iii, q- ii, r-i

• p - iii, q-i, r-ii

• p - ii, q- iii, r - i

• p - ii, q- i, r - iii

Draw a rough diagram for the situation: 'A tower stands vertically on the ground. From a point which is 15 meters away from the foot of the tower, the angle of elevation of the top of the tower is 45°.'

• B

• A

• D

• C

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

• 1.00

• 0.50

• 0.02

• 0.98

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

• 1

• 4

• 2

• 3

Assertion(A): The number of common solutions for the system of linear equations x+y=2 and 2x+2y-4=0 is zero. Reason(R): The graph of linear equations ax+by+c = 0 and ax+by+c₂ = 0 gives a pair of parallel lines if .= ar by cz

• Assertion is True but the Reason is False.

• Both Assertion and Reason are true, Reason is supporting the Assertion.

• Both Assertion and Reason are true, But Reason is not supporting the Assertion.

• Assertion is False but the Reason is True.

What is the contact number provided in the text? [phone]

• 4:12

• [phone]

• 9 minutes ago

• 2x+2y-4=0