Find the area of the specified region.Inside the circle r =  sin ? and outside the cardioid r = 1 + cos ?

A.
B.
C.
D.


Answer: D

Mathematics

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Find the weighted mean. Round to the nearest tenth.

A. 230.1 B. 307.7 C. 253.2 D. 54.2

Mathematics

Use the frequency polygon to answer the following.The frequency polygon shows the salaries of employees of a small company.The greatest number of employees are in which salary group?

A. $50,000-$60,000 B. $30,000-$35,000 C. $50,000-$55,000

Mathematics

Solve the equation. = 

A. {44}
B.
C.
D. {1}

Mathematics

Use the given values of the variables to find the value of the expression.3x - 4y for x = -8, y = 2

A. -32  B. 8  C. -2 D. 38 

Mathematics