Solve the system by the addition method.
A. {(4, 5), (-4, 5), (4, -5), (-4, -5)}
B. {(4, 5), (-4, -5)}
C. {(5, 4), (-5, -4)}
D. {(5, 4), (5, -4), (-5, 4), (-5, -4)}
Answer: D
Mathematics
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Divide. Write a mixed numeral for the answer.49 ÷ 1
A. 35
B. 33
C. 36
D. 34
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Write an equation for the lowest-degree polynomial function with the graph and intercepts shown in the figure.
A. f(x) = x2 + 30x + 11 B. f(x) = x2 + 30x - 11 C. f(x) = -x2 - 11x - 30 D. f(x) = x2 + 11x + 30
Mathematics
Use half-angle identities to find the exact value of the expression.tan 75°
A. -2 - 
B. 2 + 
C. -2 + 
D. 2 - 
Mathematics
Determine the angle 
through which the axes are rotated. Round your answer to two decimal places.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics