Using a differential equation, it is found that the temperature dropped 72 degrees Celsius between sundown and 3 hours after sundown.
<h3>What is the differential equation that describes the temperature in t hours after sundown?</h3>
The rate at which the temperature is dropping is
degrees Celsius per hour t hours after sundown, hence the <em>differential equation</em> is:

Applying <em>separation of variables</em>, we find the solution as follows:




In which T(0) is the temperature at sundown.
In 3 hours, the change will be of:

Hence:

The temperature dropped 72 degrees Celsius between sundown and 3 hours after sundown.
You can learn more about differential equations at brainly.com/question/24348029
96/12=8, which is the width of the rectangle.
Answer:
the answers are d and b
Step-by-step explanation:
d. 19x - 18 = -19x + 18
38x - 18 = 18
38x = 36
x= 36/38= 18/19
b. 19x + 18= -19x + 18
38x + 18 = 18
38x = 0
x =0
35.2ft
You can get this my multiplying the scale factor by the height. In this case you need to use the bottom number to multiply since you are going in reverse.