V= area of the base • height
V= pi• radius^2 •height
V= (3.14• 5^2) • 3
(3.14•25)•3
=235.5 units cubed
Maybe you could put C next to the B in the box in the top left corner.
Step-by-step explanation:
-2(1+7k)=-20
-2-14k=-20
-14k=-20+2
-14k=-18
k=-18/-14
k=1.2857
Answer:
The error are
1) The use of the angle addition postulate, for
2) The assumption that = 90°
The vertical angle property between and should be used to find 'x'
x = 5
Step-by-step explanation:
From the drawing of the circle, we are given;
AD = A diameter of the circle
∴ = 180°
By angle addition postulate, we have;
= + +
By substitution property of equality, we have;
180° = + +
= 5·x°
= Not given
= 15·x°
However;
is the vertically opposite angle to
∴ = = (16·x - 5)°
= 15·x° = (16·x - 5)°
15·x° = (16·x - 5)°
∴ 5 = 16·x° - 15·x° = x
x = 5
= 180° - ( + ) = 180° - (15·x° + 5·x°) = 180° - (20·x°)
= 180 - (20×5)° = 80°
= 80°
The error are the use of the angle addition postulate, for , and the assumption that = 90° rather than the vertical angle property between and in trying to find 'x', from which x = 5.