These are the correct answers I got from my quiz. Hope this helps!
Answer:
Step-by-step explanation:
Answer:
The discriminant is 40
Step-by-step explanation:
First, rewrite the equation as
so that the equation is in the form of
. Thus, the discriminant is
. This tells us that since the discriminant is greater than 0, then there are 2 real solutions.
Answer:
Option D is the correct choice.
Step-by-step explanation:
We are provided angle of elevations of two artifacts buried beneath the ground and we are asked to find distance between these two elevations.
We will find distance between these elevations by taking the difference of two.


Since we know that distance is always positive so option A is incorrect.
Therefore, option D is the correct choice and distance between these two elevations is
.