Answer:
A
Step-by-step explanation:
Answer:
zeroes: x = -9 and x = -7
Step-by-step explanation:
f(x)=(x+8)^2−1
A "zero" refers to when the y-value on the graph is zero.
0 = (x+8)^2 - 1
1 = (x+8)^2
+ or - 1 = x+8
so break them apart into two equations
x+8 = 1 OR x+8 = -1
x = -7 OR x = -9
You can plug both back in to check that the equation works!
Answer:
You must drive 5 hours
Step-by-step explanation:
First we have to calculate how much we have to cover
v = velocity = 65 mi/h
t = time
d = distance
v = d/t
t = d/v
d = 700mi - 375mi
d = 325mi
t = d/v
t = (325mi) / (65mi/h)
t = 5h
The equation would then look like this:
t = (700mi - 375mi) / (65mi/h)
16.22 divided by 2 = your answer. (8.11)