Find the inclination of a line.

4. the line 3x+5y=8

5. the line joining (-1,2) and (4,1)

the answers are

4. 149 degrees
5. 14 degrees

can someone explain how to do this question?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

What is the difference between the predicted value and the actual value

Find the perimeter of the figure shown above. a. 18 yds c. 20 yds b. 10 yds d. 24 yds select the best answer from the choices provided