Solve the Problem $x ^ { 2 } + y ^ { 2 } = 4$

question 75

Multiple Choice

Solve the problem.
-Find the centroid of the region cut from the fourth quadrant by the circle $x ^ { 2 } + y ^ { 2 } = 4$ .

• A) \(\bar { x } = \frac { 2 } { 3 \pi } , \bar { y } = - \frac { 2 } { 3 \pi }\)
• B) \(\bar { x } = - \frac { 3 \pi } { 8 } , \bar { y } = \frac { 3 \pi } { 8 }\)
• C) \(\bar { x } = \frac { 8 } { 3 \pi } , \bar { y } = - \frac { 8 } { 3 \pi }\)
• D) \(\bar { x } = \frac { 3 \pi } { 8 } , \bar { y } = - \frac { 3 \pi } { 8 }\)

Calculate earnings from piece-rate and commission-based work.

Understand and perform percentage calculations for various scenarios.

Calculate average costs and weighted averages in financial transactions.

Understand the calculation and interpretation of gross earnings.

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Definitions:

Anterior Fontanel

The largest and most noticeable soft spot on a baby's skull, allowing for brain growth and situated at the junction of the frontal and parietal bones.

Lambdoid Sutures

The serrated joints connecting the parietal bones with the occipital bone in the skull, resembling the Greek letter lambda.

Coronal

Relating to the frontal plane that divides the body into anterior and posterior (front and back) portions.