Answer: Lets divide by 8. My god, those coefficients are large.
x^3 - 8x^2 + 20x - 16 = 0
Possible integral roots are: +1, -1, +2, -2, +4, -4, +8, -8
If x = 2, f(x) = 8 - 32 + 40 - 16 = 0
Hence, x-2 is a factor.
Use synthetic division to get: x^2 - 6x + 8 = (x-4)(x-2).
Therefore, there are two integral roots: +2 and +4.
Step-by-step explanation:
Answer:
a + 1
to get 1 more than a you add 1 to a because you don't know what a is
Recall that
. So we can add twice the first equation to the second one to get
Since
, we have
so
If
, then
If
, then
So the solution set is
The flying drones are illustrations of the laws of cosines
Both flying drones would be 128.13 meters apart after 1 hour
<h3>How to determine the distance between them</h3>
For drone A, we have:
- Angle =120 degrees
- Speed = 80 mph
So, the distance after one hour is:
Distance = 80 m
The distance is calculated using:
Distance = Speed * Time
For drone B, we have:
- Angle = 320 degrees
- Speed = 50 mph
So, the distance after one hour is:
Distance = 50 m
The angle between them is calculated as:
This gives
Using the laws of cosine, the distance (d) between them after 1 hour is:
So, we have:
Evaluate the expression
Hence, both drones would be 128.13 meters apart after 1 hour
Read more about laws of cosines at:
brainly.com/question/4372174