For the quadratic equation 2x^2 - 4x + k = 0 to have real roots, what must be the condition on k?

C. K ? 8
Posted in:  Quadratic Equations -  Algebra -  Mathematics

Author is to Book as Painter is to __________.

B. ART

Which word is formed by adding both a prefix and a suffix to the root 'place'?

B. PLACEMENT

Teacher is to School as Doctor is to ?

A. HOSPITAL

If the word 'COLD' is coded as 'DPME', how is 'WARM' coded in the same way?

A. XBNQ