D=b²-4ac=4-4*1*8=4-32=-28
<span>B. -28</span>
Answer:
Greater than or equal to or less than or equal to.
Step-by-step explanation:
Answer: Option A and Option C.
Step-by-step explanation:
For this exercise it is important to know the definition of "Vertical Angles".
When two lines intersect or cross, there are a pair of angles that share the same vertex and they are opposite each other. This pair of angles are known as "Vertical angles".
By definition, Vertical angles are congruent, which means that the have the equal measure.
In this case, you can observe in the picture provided in the exercise that the line TI and the line WN intersect each other at the point S.
You can identify that the pair of angles that are opposite to each other and share the same vertex are the shown below:
and 
and 
INFORMATION:
We know that:
- Rhombus STAR has vertices S(-1,2), T(2,3), A(3,0), and R(0,-1)
And we must calculate the perimeter of the rhombus
STEP BY STEP EXPLANATION:
To calculate it, we must find first the measure of one of the sides.
We can find one of the sides calculating the distance between two consecutive vertices.
So, calculating the distance between vertices S and T

Finally, to find the perimeter, we need to use that the rhombus has 4 equal sides. So, we the perimeter would be

ANSWER:
D. 4√10