The answer I think is D but use the app photo math very useful:)
Answer:
115
Step-by-step explanation:
For this case we have an equation of the form:
y = A * (b) ^ t
Where,
A: initial amount
b: decrease factor
t: time
Substituting values:
y = 30 * (b) ^ t
To calculate t we use a point in the table.
We have:
(t, y) = (1, 28.5)
Substituting:
28.5 = 30 * (b) ^ 1
b = 28.5 / 30
b = 0.95
Answer:
a. Decay factor is 0.95
Answer:
use Google
Step-by-step explanation:
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1 millimetre = 1/1000 = 1×10^-3 m
