Answer:
The first one and the second one
Step-by-step explanation:
Answer:
a=-4, b=-4. (-4, -4).
Step-by-step explanation:
-3a+7b=-16
-9a+5b=16
-------------------
-3(-3a+7b)=-3(-16)
-9a+5b=16
---------------------------
9a-21b=48
-9a+5b=16
------------------
-16b=64
b=64/-16
b=-4
-3a+7(-4)=-16
-3a-28=-16
-3a=-16+28
-3a=12
a=12/-3
a=-4
Answer:
ertyghujikol
Step-by-step explanation:
3456t7ujn
Answer: C. 2,787.64 yd.³
Step-by-step explanation:
Diameter = 22 Yards
Radius = 11 Yards (Diameter/2)
Height = 22 Yards
V = 1/3Bh
V = 1/3π(11 yd)²×(22yd)
V = 1/3π(121 yd)×(22yd)
V = 1/1π(121 yd)×(7.33yd)
V = 886.93π yd.³
V ≈ 2,787.64 yd³
