We considered a 85°c cup of coffee in a 20°c room. suppose it is known that the coffee cools at a rate of 1°c per minute when its temperature is 70°c. (a) what does the differential equation become in this case? dy dt = (b) sketch a direction field and use it to sketch the solution curve for the initial-value problem.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: