The answer is the last one because you are plugging the x values in for x and solving it out for y.
Answer:
128 ft/s; it represents the average speed of the object between 2 seconds and 6 seconds
Step-by-step explanation:
The average rate of change is another way to say slope.
slope = (y2-y1)/(x2-x1)
= (576-64)/(6-2)
= (512/4)
=128 ft/s
This represents the change in ft per second, or the average speed the object is going during the time period.
Answer:
There is no table
Step-by-step explanation:
A=15 because if you subtract 9 from both 9 and 54, you are left with 3a=45. 45 divided by 3 is 15, making a=15
Answer
a. PV=$0.31
b. PV=$879.63
Step-by-step explanation:
PV = F / [ (1 + r)^n ]
where
PV = Present Value,
F = Future payment (cash flow),
r = Discount rate=0.80
n = the number of periods in the future=2
a. F=$1
PV = 1/[(1 + 0.8)^ 2]
=1/ [1.8]^2
=1/3.24 =$0.31
b. F=$2,850
PV = 2850/[(1 + 0.80)^ 2]
=2850/ [1.8]^2
=2850/ 3.24
=$879.63