Your answers will be A,B,D,
Answer:
no
Step-by-step explanation:
It depends on how many points the test is!
If I=P*r*t, we can input 450 in for I, 3000 in for the principal (P, or the starting rate), and 3 for t=time because there were three years, resulting in 450=9000*r. Next, we can divide both sides by 9000 to get 0.05 or 5% as our answer.
Answer:

Step-by-step explanation:
<u>Newton's law of cooling states </u>
"<em>that the temperature of a body changes at a rate proportional to the difference in temperature between the body and its surroundings"</em>
Newton's Law of Cooling is given by the formula

Where
F(
t
) is the temperature of the object at a given time t
T
s
is the surrounding temperature
T
0 is the initial temperature of the object
k is the constant
Given k=0.2
Hence the expression is
