gwoodbyrne
12.10.2020 •
Mathematics
What is the discrimination of the quadratic equation 8x^2-2x-1=0
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Ответ:
For another information, when D > 0, there are 2 real roots.
When D = 0, there is only one real root.
And when D < 0, there are no real roots (also known as imaginary.)
Ответ:
9514 1404 393
B. 6√3 feet
Step-by-step explanation:
The Pythagorean theorem can help with this. It tells you the square of the hypotenuse is the sum of the squares of the two legs. In feet, the length of the unknown leg (x) is ...
12² = x² + 6²
144 -36 = x² = 108
x = √108 = 6√3 . . . . . matches B