Step-by-step explanation:
ax2 + bx + c = 0
x12 = (-b ± √D) / 2a , D = b2 - 4ac .
5x2 + 7x + 3 = 0
a = 5 , b = 7 , c = 3
D = 49 - 60 = - 11 , x1 = (-7 - i √11) / 10
x2 = (-7 + i √11) / 10
It is just the multiplication of vectors. We'll multiply corresponding pairs together. The general formula for the pairs of (
;
) and (
;
) is
*
+
*
= (-6)*(-3)+4*6=18+24=42
The answer is kinda hard and easy so I will explain how to do it but not answer. So first you divide 105 by 7 to get the number of pounds of food per snake. Then you times it by 3 for 3 snakes, by 5 for 5 snakes, and by 10 for ten snakes. At least that is what I think. Hope this helped!!