Answer:
75.4
Step-by-step explanation:
A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822
(-3, 1)
4x-9y=-21
+-4x-3y=9
-12y= -12
y=1
4x- 9(1)= -21
4x-9=-21
+9 +9
4x= -12
x=-3
Cross multiply X×4=3×1
4x=3
X= 3/4
X = - 7 - y ( - 7 - y ) y = 12y = - 3 or y = - 4x = - 7 - ( - 3) or x = - 7 - ( - 4)( - 4, - 3)( - 3, - 4)
Answer:
the codrect answer is 625
