Answer:
20°
Step-by-step explanation:
A triangle = 180°
∴ 180° -120°-40°
=20°
It dives at a constant rate of 2.4166666666666667 feet per second which would be 145 feet per minute and 8,700 feet per hour
<u>x-intercepts are found by setting y=0</u>

<em>factor out a 2</em>

<em />

<em>roots should be </em>x=-1,5
therefore,
x-intercepts are (-1,0) and (5,0)
<u>
</u><u>y-intercepts are found by setting x=0</u>


therefore,
y-intercept is (0,-10)
It would be negative seeing the key word is down. (:
Hope I could help!