Answer:
vertex = (- 2, - 36)
Step-by-step explanation:
Given a parabola in standard form : y = ax² + bx + c : a ≠ 0
Then the x- coordinate of the vertex is
= -
f(x) = 5x² + 20x - 16 is in standard form
with a = 5, b = 20 and c = - 16
= -
= - 2
Substitute x = - 2 into f(x) for corresponding y- coordinate
f(- 2) = 5(- 2)² +20(- 2) - 16 = 20 - 40 - 16 = - 36
vertex = (- 2, - 36)
The unit rate per munchkin is $0.22.
<h3>What is Division?</h3>
Division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.
The cost of 25 munchkins cost $5.46, therefore, the unit rate of each munchkin can be written as,
Hence, the unit rate per munchkin is $0.22.
Learn more about Division:
#SPJ1
Answer:
Step-by-step explanation:
a). =
=
= [Since, i =
]
b). =
=
= 5 ± 2i [Since, i = ]
c). =
=
=
= [Since, i =
]
