Answer:
1hour is 615 miles per hour
Step-by-step explanation:
The discriminant of a quadratic equation is:

Plug in the values.


Since the discriminant is negative, you can tell that the quadratic has no real solutions.
Hope that helped!
~Cam943, Moderator
4. 1,50
5. 0,50
6. Tawni swims the fastest because she swims at roughly 0,8 meters per second which is faster than the other two contestants.
Answer:
D. 360 in.²
Step-by-step explanation:
<em>Since all the answers are labeled as in.², we know that we have to find the area of the rectangular prism. The formula for area of a rectangular prism is: </em><em>lwh </em><em>(length x width x height).</em>
<em>l = 12</em>
<em>w = 6</em>
<em>h = 5</em>
12 x 6 x 5 = 360
47+ 30 is 77 so def is 77 and 103 is deg. and