a is the correct answer.......
Answer:
12.8844
the answer is (a)12.8844
Step-by-step explanation:
y=-3x-5
1 + +17 18
______ = ___ = m
2 + -17 -15
x=sqrt(3)/2 or -sqrt(3)/2
(x,1/2) is on the unit circle at pi/6 and 5pi/6.
so x is either sqrt(3)/2 or -sqrt(3)/2
Volume =
9/8 × (-7/3) =
9 × -7 = -63
8 × 3 = 24
-63/24 simplify
-21/8
