The Volume V of a Right Circular Cone Varies Jointly

question 9

Multiple Choice

The volume V of a right circular cone varies jointly as the square of the radius r and the height h . Tell what happens to V when r is doubled.

• A)V is 4 times as large.
• B)V is 3 times as large.
• C)V is 2 times as large.
• D)V is 9 times as large.
• E)V is 6 times as large.

---

Definitions:

Cervical Enlargement

A widened area of the spinal cord that supplies nerves to the shoulders, arms, and hands.

Dorsal Root Ganglion

A cluster of nerve cell bodies (neurons) in a dorsal root of a spinal nerve, which carries sensory information to the central nervous system.

Spinal Nerve

A nerve that emerges from the spinal cord and consists of both motor and sensory fibers, providing communication between the spinal cord and the body.