Question in picture below
2 answers:
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Answer:
Option D) 47.25 in
Step-by-step explanation:
we know that
The equation of a exponential decay function is equal to
where
y is the total length
x is the number of pieces of ribbon
a is the initial value
r is the rate of change
we have
substitute
we have that
For x=0 ----->
For x=1 ---->
For x=2 ---->
For x=3 ---->
For x=4 ---->
For x=5 ---->
Adds the length of the first 6 pieces of ribbon
Given problem;
We are to make t, the subject of the expression v = u + at.
The equation is one of the equations of motion.
Usually, v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.
To make "t" the subject of the expression; follow these steps;
v = u + at
- Subtract "u" from both sides;
v (-u) = u (-u) + at
2. the expression is now;
v - u = at
3. now multiply both sides by to isolate "t";
(v - u) = at x
t =