Hi Mackenzie.
Given that we have a probability question with the term "or", we are going to be adding individual probabilities.
We have Ethan, Hannah, and Sophie all included with the drawing.
This means we need to add each of their individual probabilities, 1/1200, together.
1/1200 + 1/1200 + 1/1200 = 3/1200;
To simplify: 1/400
Your answer is:
The probability of Ethan, Hannah, or Sophie being drawn is 1/400.
I hope this helps!
≈9.38
13² - 9² = x²
189 - 81 = 88
√88 = x
Look at my picture for the work, but here are the steps to solve this question:
1. Use the slope formula to find the slope
2. Use the point slope formula and solve for y
Final answer: y=-x+2
Please let me know if this answer helped you!
I know that x=9 not sure the rest but you could ask a tutor