lilobekker5219
03.06.2020 •
Mathematics
The Accompanying table show ls the average SAT Math and Critical Reading scores for students in a sample states. a scatter plot for these two variables suggest a linear trend.
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Ответ:
for ax²+bx+c=0the discriminat is b²-4ac
if the discriminant is1. less than 0, then 0 real solutions2. equal to 0, then 1 real solutions3. if more than 0, then 2 real solutions
given
6x²-2x+7=0a=6b=-2c=7(-2)²-4(6)(7)4-168we can see this is less than 0no real solutions