the nth term of the sequence 2,0,-2,-4,-6... is 4 times the nth term of the sequence -22,-20,-18,-16,-14... work out the value o
f n
1 answer:
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Answer:
x = 8
Step-by-step explanation:
Using the sine or cosine ratio in the right triangle and the exact value
sin30° = , then
sin30° = =
=
( cross- multiply )
x = 8
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.