Answer:
-1, 2.5, 20, 21
Step-by-step explanation:
16 plus 4 is <u>20</u>
<u>2.5</u>
7-8 is <u>-1</u>
<u>21</u>
Answer:
The triangle ABC is an isosceles right triangle
Step-by-step explanation:
we have
The coordinates of triangle ABC are
A (0, 2), B (2, 5), and C (−1, 7)
we know that
An isosceles triangle has two equal sides and two equal internal angles
The formula to calculate the distance between two points is equal to

step 1
Find the distance AB
substitute in the formula



step 2
Find the distance BC
substitute in the formula



step 3
Find the distance AC
substitute in the formula



step 4
Compare the length sides




therefore
Is an isosceles triangle
Applying the Pythagoras Theorem

substitute


-----> is true
therefore
Is an isosceles right triangle
Answer:
its A and D
Step-by-step explanation:
i just took the quiz :)
Standard deviation I think