If a : b = 20:5 then find out the value of (13a-9b): (11a-7b)?
Tag: Exam

Evaluate: 11 + sqrt(-4 + 6 × 4 ÷ 3)
Evaluate: 11 + sqrt(-4 + 6 × 4 ÷ 3)

Evaluate: -18 + 4(6 ÷ 2)^2
Evaluate: -18 + 4(6 ÷ 2)^2

If a + b = 3 and a^2 + b^2 = 7, what is a^4 + b^4?
If a + b = 3 and a^2 + b^2 = 7, what is a^4 + b^4?

If 2 + 2 = 6, 3 + 3 = 11, 4 + 4 = 18, what is the solution of 6 + 6 = ?
If 2 + 2 = 6, 3 + 3 = 11, 4 + 4 = 18, what is the solution of 6 + 6 = ?