Answer:
Step-by-step explanation:
Take 20( cosine of 75 degrees)
the answer is 5 ft
The answer is D) All the steps and the answer are correct. :)
You can just solve using the steps to see if they are right. For example, is -1x17=-17? Yes.
Answer: 
Step-by-step explanation:
Given
If the temperature falls by
in 3 hours
Present temperature is 
The difference in temperature i.e.

Temperature 3 hours ago is 
Answer:
The anwser would be 230
Step-by-step explanation:
Answer:
Using various of methods. It depends of your solving it on a graph, table, etc.
Step-by-step explanation:
You can put it in slope-intercept form (My fav), standard form, point-slope form, you can find the rate change (Y is over X), etc.