We solve the problem by means of the method of separation of variables.
We have then:
2ty '= 4y
2t (dy / dt) = 4y
t (dy / dt) = 2y
(dy / y) = 2 (dt / t)
integrating both sides:
int (dy / y) = 2int (dt / t)
Ln (y) = 2Ln (t) + c
exp (Ln (y)) = exp (2Ln (t) + c)
exp (Ln (y)) = exp (Ln (t ^ 2) + c)
exp (Ln (y)) = exp (Ln (t ^ 2)) * exp (c)
y = c * t ^ 2 ---> y (1) = - 2.
-2 = c * (1) ^ 2
c = -2
then:
y = -2 * t ^ 2
answer:
c = -2
r = 2
Answer:
706.50 mm^2
Step-by-step explanation:
C = 2 pi r
30 pi = 2 pi r
r = 15
A = pi r^2
= 15^2 pi
= 225 * 3.14
= 706.50 mm^2
Answer:
2
Step-by-step explanation:
i think give me brain pleaz
Answer:
My brain just exploded. I tried imagining what the shape would look like, and that didn't work. Also, I tried drawing the shape and that didn't work. I have no idea what the shape looks like. If you still need help with this question, maybe you can repost it with an image attached so we can know what the shape looks like.
Answer:
$548 divided by p
Step-by-step explanation:
$548÷p or $548 over p
