Answer:
a. Decay
b. 0.5
c. 4
Explanation:
If we have a function of the form
then
a = intital amount
b = growth / decay rate factor
x = time interval
If b > 1; then the equation is modelling growth. If b < 0, then the equation is modelling decay.
Now in our case, we have
Here we see that
inital amount = a = 4
b = 1/ 2 < 0, meaning the function is modeling decay
decay factor = b = 1/2
Therefore, the answers are
a. Decay
b. 0.5
c. 4
Answer:
A.
Step-by-step explanation:
The formula for circumference is:
We know that the circumference is 8π inches. So, substitute 8π for C:
Solve for r. Divide both sides by 2π. So:
Therefore, the radius is 4 inches.
Hence, our answer is A.
Answer:
The length of each side of the polyhedron, s is 4.142 or
=
Step-by-step explanation:
If we take the distance of the length of the side of the cube where Donatello make the cut to the corner of the cube as x we get the side of length each polyhedron as
x·√2 because we have an hy
Therefore, the original cube had sides of length
10 = 2·x + x·√2
Solving for x we get
Therefore the length of s is x·√2 which gives
The length of each side of the polyhedron, s = 4.142.