Answer:
yes it is a right triangle
Step-by-step explanation:
the angles meet up into a 90 degree angle causing it to form a right triangle.
2+(-6) because you have two and then subtract -6
Answer:
D: 169
Step-by-step explanation:
because the number of dots along the bottom increases by two every time, the 7th one would have 13.
13 x 13 = 169
The mean is four
(Brainliest please)