Answer:
Step-by-step explanation:
Add and subtract the square of half the x-coefficient:
x² -10x +(-5)² -(-5)² +15
Express the first three terms as a square; simplify the remaining terms.
(x -5)² -10
This expression describes a parabola that opens upward and has its vertex at (x, y) = (5, -10). The minimum value is -10.
Answer:
6
Step-by-step explanation:
Given that :
The school children are going for a school field trip. There are total forty - six number of students for the field trip.
They are asked to form groups of seven students in a group.
Therefore they will form =
= 6.5
Therefore there will 6 number of groups having 7 students. And the remaining 4 students will form another group.
So there will be 6 groups of seven in each group.