Answer:
a. 
b. 
c. 
d.
minutos
Step-by-step explanation:
a. Newton's law of cooling states that the speed with which a body is cooled is proportional to the difference between its temperature and that of the medium in which it is found. Then, the initial value problem is given by:


b. The differential equation obtained is a differential equation of separable variables:

c. After 33 minutes of serving the coffee has cooled to 180°:

d.

The use of sine and cosine could give you the angle measuments of the triangle, along with the use of tangent. Not only could it give you the angle measurements but the lengths of the sides.
Answer:
7 1/2
Step-by-step explanation:
A water tank contains 12 1/2 liters
= 25/2
Two fifth of it was consumedd
= 25/2 ×2/5
= 50/10
= 5
12.5-5
= 7.5
= 7 1/2
Hello there, and thank you for posting your question here on brainly.
You can find out how much he ran per minute (or mpm) by dividing 6 by 42.
42 / 6 = 7
He runs a mile every 7 minutes.
Hope this helped!! ☺♥
S= -3 and 0
6s²+18=0
6s(s+3)=0
6s=0 s+3=0
s=0 and s= -3