$$\text { Find the mass of the wire that lies along the curve } r \text { and has density } \delta \text {. }$$

question 159

Multiple Choice

$$\text { Find the mass of the wire that lies along the curve } r \text { and has density } \delta \text {. }$$
- $$r ( t ) = ( 3 \cos t ) \mathbf { i } + ( 3 \sin t ) \mathbf { j } + 3 t k , 0 \leq t \leq 2 \pi ; \delta = 5$$

• A) \(30 \pi \sqrt { 2 }\) units
• B) \(6 \pi \sqrt { 2 }\) units
• C) \(90 \pi \sqrt { 2 }\) units
• D) \(10 \pi\) units

Distinguishing between descriptive and inferential statistics.

Recognizing and defining the types of variables in statistical studies.

Computing and understanding relative frequencies.

Comprehending the process and purpose of constructing frequency distributions.

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