Solve the system by the best method. Use set notation to express the solution set.
A. {(-7, -1)}
B. no solution; ?
C. {(7, 0)}
D. {(-8, 0)}
Answer: A
Mathematics
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A. 6 B. 2022 C. 22 D. 11
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Find the trigonometric function value for the angle shown.cos ?
A. cos ? = 
B. cos ? = 
C. cos ? = 
D. cos ? = 
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Write the number in expanded form.50,800
A. 5 thousands + 8 hundreds B. 580 ten thousands C. 5 ten thousands + 8 thousands D. 5 ten thousands + 8 hundreds
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