The vertex is at (2, 5).
To find the vertex, we first find the axis of symmetry; this is given by
x = -b/2a
For our equation, b = -16 and a = 4:
x = -(-16)/2(4) = 16/8 = 2
We substitute this back into our equation:
y = 4(2)² - 16(2) + 21 = 4(4) - 32 + 21 = 5
Therefore the vertex is at (2, 5).
His average is 4.2 seconds. hope it helps
Answer:
5+m
Step-by-step explanation:
Sam is 5 years older than Michelle. This sentance tells me that we have to add. Michelle is m years old, so we can add 5+m.
Hope this helps, have a blessed day, and for any questions or comments, please ask in the comment section below!
540 - [(180 - 86) + (180 - 76) + (180 - 41) + 9180 - 98) ]
= 540 - (94 + 104 + 139 + 82)
= 540 - 419
= 121
x = 180 - 212
x = 59
