Answer:
D
Step-by-step explanation:
F(t)=1.4^t
<span>a)a=1, b=0.4 </span>
<span>b)a=1.4, b=0<<<< </span>
<span>c)a=1.4, b=t </span>
<span>d)a=1, b=1.4
Hope this helped!!</span>
Answer:

So it would takes approximately 6.9 hours to reach 32 F.
Step-by-step explanation:
For this case we have the following differential equationÑ

We can reorder the expression like this:

We can use the substitution
and
so then we have:

IF we integrate both sides we got:

If we apply exponential in both sides we got:

And if we replace w = u-T we got:

We can also express the solution in the following terms:

For this case we know that
since w ehave a cooloing,
, we have this model:
And if we want that the temperature would be 32F we can solve for t like this:



If we apply natural logs on both sides we got:


So it would takes approximately 6.9 hours to reach 32 F.
Answer:
the snnswer is 47 not no other answer
Step-by-step explanation:
Answer:
3/2
Step-by-step explanation:
y = mx + b
-6 = -3/2(5/1) + b
-12/2 = -15/2 + b
b = 3/2