$z = \sqrt { x ^ { 2 } + y ^ { 2 } } , x ^ { 2 } + y ^ { 2 } \leq 121$

question 42

Multiple Choice

$\text { Evaluate } \iint _ { S } ( x , y , z ) d S \text {, where } f ( x , y , z ) = \sqrt { x ^ { 2 } + y ^ { 2 } + z ^ { 2 } } \text { and } S \text { is given by }$ $z = \sqrt { x ^ { 2 } + y ^ { 2 } } , x ^ { 2 } + y ^ { 2 } \leq 121$

• A) \(\frac { 5324 } { 5 \pi }\)
• B) \(\frac { 2662 \pi } { 3 }\)
• C) \(\frac { 5324 \pi } { 3 }\)
• D) \(\frac { 1331 \pi } { 5 }\)
• E) \(\frac { 2662 } { 3 \pi }\)

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Definitions:

Oligodendrocyte

A type of glial cell that forms myelin sheaths around neurons in the CNS.

Myelin Sheath

A fatty layer surrounding nerve fibers, which increases the speed at which electrical impulses propagate along the nerve cell.

Axon

A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Dendrite

A branched projection of a neuron that receives electrical signals from other neurons.