Suppose \(\overline{ab}\) is a 2 digit number with the property that the 6 digit number \(\overline{1234ab}\) is divisible by 9 and \(\overline{ab1234}\) is divisible by 11. What is a² - b²

Suppose a and b are nonzero decimal digits ( 1-9), with the property that

\(\left(\overline{aa}\right)^2+\left(\overline{bb}\right)^2=\overline{aabb}\)

What is a+b ?

find the roots of the equation 2x^2 - 5xy +3y^2=7

Let the rectangle ABCD, AB=2/3BC and the area is 24cm². What is the perimeter of the rectangle ABCD

Cho hình thoi ABCD có AB=5cm và . Tính diện tích của hình thoi ABCD

Find the minimum value of the expression \(\frac{2}{-4x^2+8x-5}\)

Find the minimum value of A=x(x-3)

Give \(\Delta ABC\); AB=3AC. Find the ratio of the altitude BH to CH