Answer:
2. 70
3. 70
4. 110
5. 110
6.70
7. 70
8. 110
Step-by-step explanation:
a straight line = 180 so 1+2 has to = 180 1+3 has to = 180 2+4 has to = 180 and so on
Answer:
2r - 36
Step-by-step explanation:
r x r = 2r
-9 x 4 = -36
Flipping two coins gives four possibilities: HH, HT, TH, TT
So P(TT)=1/4
So we'd expect a quarter of the trials to be two tails.

trials expected to be two tails.
The only type of symmetry is
vertical line of symmetry
D. Use the formula V=πr^2 h.