<h3>
Answer: 0.30</h3>
Explanation:
Add up the probability values that correspond to x = -3 or smaller.
We'll add up the probability values corresponding to P(-3) and P(-5)
0.13+0.17 = 0.30
Let's see first x-y=-3. You can find x and x=-3+y
Then you replace x in x+3y=5
-3+y+3y=5
4y=8
y=2 But you have to find x too.
x=-3+2 x=-1
The answers are x=-1, y=2
Tan(angle) = opposite length/ adjacent length
Tan(50) = h/40
h = 40 x tan(50)
h = 47.67 or 47.7 feet
What's the difference between A and D? but its those two