Find the value of cos P rounded to the nearest hundredth, if necessary.
1 answer:
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Answer:
B
Step-by-step explanation:
The vertex is the turning point of the parabola.
First find the zeros by equating y to zero, that is
(x - 6)(x + 12) = 0
Equate each factor to zero and solve for x
x - 6 = 0 ⇒ x = 6
x + 12 = 0 ⇒ x = - 12
The vertex lies on the axis of symmetry which is situated at the midpoint of the zeros, thus
=
=
= - 3
Thus the x- coordinate of the vertex is x = - 3 → B
Answer:
The answer is b= - 5
Step-by-step explanation:
-96 = -6 ( 1 - 3b )
-6 ( 1 - 3b ) = -96
1 - 3b = 16
3b = 16 - 1 = 15
b= 15 : 3 = 5