1/2 + 1/2 = 1

1/4 + 1/4 = 1/2

10 - 4 = 6

12 ÷ 3 = 4

15 - 9 = 6

20 ÷ 4 = 5

3 × 3 = 9

3.14 * 2 = 6.28

5 + 3 = 8

6 × 2 = 12

The absolute value of -8.5 is 8.5.

Circumference = 2πr, r = 31.4/(2π) ≈ 5 m. Area = π(5)² = 25π ≈ 78.5 m².

Area = πr² = π(10)² = 100π ≈ 314 cm².

Area = πr² = π(7)² = 49π ≈ 154 cm².

Area = base × height = 12 × 7 = 84 cm².

Area = 1/2 * (base1 + base2) * height = 1/2 * (5 + 7) * 4 = 24.

Circumference = 2πr = 2 * (22/7) * 7 = 44 cm.

Area = πr²; 50.24 = 3.14 * r²; r² = 50.24 / 3.14 = 16; r = 4 cm; Diameter = 8 cm.

Distance = |3(1) + 4(2) - 10| / √(3² + 4²) = |3 + 8 - 10| / 5 = 1/5 = 0.2.

Equation of circle: (x-h)² + (y-k)² = r² => (x-2)² + (y+3)² = 4² = 16.

Area = 1/2 * base * height; 32 = 1/2 * 8 * height; height = 32 / 4 = 8 cm.

sin⁻¹(1/2) = 30°

Arc length = (θ/360) * 2πr = (60/360) * 2 * (22/7) * 10 = 10.47 cm.

Diagonal = √((3-0)² + (4-0)²) = √(9 + 16) = √25 = 5.

Mean = (2 + 4 + 6 + 8 + 10) / 5 = 30 / 5 = 6.

First, sort the data: 1, 2, 3, 4, 5. The median is the middle value, which is 3.

The mode is the number that appears most frequently, which is 2.

Perimeter = 3 * side = 3 * 6 = 18 cm.

The product of the roots = c/a = 9/3 = 3.

The product of the roots of ax^2 + bx + c is given by c/a. Here, 6/2 = 3.