Write an equation that expresses the relationship. Use k for the constant of proportionality.P varies directly as R and inversely as the square of S.

A. P = 
B. P + R - S2 = k
C. P = 
D. PRS2 = k

Answer: A

Mathematics

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Determine if the type of relation is linear, nonlinear, or none.

A. nonlinear B. linear C. none

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Round to the indicated place value.Round to the nearest one: 341.17

A. 341.20 B. 341 C. 342

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Decide whether the relation is a function, and give the domain and range.

A. Not a function; domain: {9, -6}; range: {-3, 0, 6} B. Function; domain: {9, -6}; range: {-3, 0, 6} C. Not a function; domain: {-3, 0, 6}; range: {9, -6} D. Function; domain: {-3, 0, 6}; range: {9, -6}

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Solve the system. +  =  -  = - 

A. {(-4, 7)}
B. {(-7, 4)}
C.
D. {(7, -4)}

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Mathematics