Use the graph to determine the domain and range of the function. 

A. domain: {x|x > 0}
range: {y|y ? 4}
B. domain: {x|x ? 4}
range: {y|y > 0}
C. domain: {x|x ? 4}
range: {y|y ? 0}
D. domain: {x|x ? 0}
range: {y|y ? 4}


Answer: B

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A.

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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cot ? = -3, sec ? > 0Find cos .

A. -  
B. -  
C.
D.  

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Determine whether the matrix is in row-echelon form. If it is, determine if it is also in reduced row-echelon form.



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Divide, if possible. Write the answer in simplest form.4 ÷ 2

A. 3 
B. 2
C. 2 
D. 2 

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