I believe the answer to this is C. English.
Answer:
A. t < –15
Step-by-step explanation:
The temperature has to be less than -15
t < -15
Speed is the rate of distance over time.
<em>The speed of the boat is 13mph south-west</em>
Given
<em />
<em> --- west</em>
<em />
<em> -- south</em>
<em />
The speed is illustrated with the attached image
Because both speeds act at a diagonal, the speed (v) of the boat is calculated using Pythagoras theorem as follows:



Take square root


<em />
<em>Hence, the speed of the boat is 13mph south-west</em>
Read more about speed at:
brainly.com/question/22610586
The slope is -13/5.
To find this you subtract the two y and get -13. You then do this with the x of the same two points and get -5. So the answer is -13/5, and you simplify if possible.