Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.(x7)-7
A. - x49
B. -7x49
C. -7x7
D. 
Answer: D
Mathematics
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Using Green's Theorem, find the outward flux of F across the closed curve C.F = - 
i ; C is the region defined by the polar coordinate inequalities 
and 
A. 
B. 
C. - 
D. 0
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Simplify.
2? 
A. 
B. 
C. 
D. 
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Use the frequency polygon to answer the following.The frequency polygon shows the salaries of employees of a small company.
Find the number of employees who earn $48,000 to $54,000.
A. 12 employees B. 14 employees C. 18 employees
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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 5°
A. 0.28 B. -0.28 C. 1.00 D. -1.00
Mathematics