Answer:
AB = AC
so AB is Also 3.2
.............................
Answer:
-6x^2+x+8
Step-by-step explanation:
9+-1=8
Answer:
x=10, 2
Step-by-step explanation:
0=-x^2+12x-20
0=(-x+10)(x-2)
x=10
x=2
Answer:
C
Step-by-step explanation:
reflection across the x-axis.
Answer:
will this work or help ?
Step-by-step explanation:
The given equation governs the height versus time of the object. h(0) = 64, so the ground is considered at h = 0. The question is at what time is h = 0? So, set h = 0 and solve for t.
-16t^2 + 48t + 64 = 0
We can divide both sides of this equation by -16 for simpler numbers. We get
t^2 - 3t - 4 = 0
We can factor this equation:
(t - 4)(t + 1) = 0
So, t = 4 and t = -1 are solutions.
But, time must be positive, so t = -1 makes no sense, so we discard it. This leaves
t = 4 sec.
