Answer:
The 1st option
Step-by-step explanation:
Line RT bisects VS at a right angle. We know that angle RTS is a right angle, so RTV is also a right angle.
Answer:
.
Step-by-step explanation:
Since vertices lie on y-axis. So, it is a vertical parabola of the form
where, (h,k) is center, is focus and is vertex.
Center is (0,0). So, h=0 and k=0.
Foci are . So .
Vertices are . So .
We know that,
Put h=0,k=0, a=8 and b=3 in equation (1).
Therefore, the required equation is
.
Answer:
Step-by-step explanation:
What do you mean?
We are required to find the volume of the object which comprises of a cylinder and a cone
The volume of the object is 108 in³
Volume of a cylinder = πr²h
π = 3
r = diameter / 2 = 4 in / 2 = 2 in
h = 8 in
Volume of a cylinder = πr²h
= 3 × (2 in)² × 8 in
= 3 × 4 in² × 8 in
= 96 in³
Volume of a cone = πr²h/3
= (3 × (2 in)² × 3 in) / 3
= (3 × 4 in² × 3 in) / 3
= 36 in³ / 3
= 12 in³
The volume of the object can be found by adding the volume of the cylinder and the volume of the cone
Total volume = Volume of a cylinder + Volume of a cone
= 96 in³ + 12 in³
= 108 in³
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