What is the discriminant d of the equation? n^2+2n−2=0

the discriminant of the given equation is, 12

Step-by-step explanation:

A quadratic equation  ....[1] then

Discriminant of the quadratic equation is given by:

where D is the discriminant of the quadratic equation

Given the equation:

On comparing with equation [1] we have;

a = 1, b = 2 and c = -2

Then using formula for discriminant, we have;

⇒

⇒

Therefore, the discriminant of the given equation is, 12

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step-by-step explanation:

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: