Multiply and simplify.(3 sec ? - 3 tan ?)(3 sec ? + 3 tan ?)
A. 9 (sec2? + tan2?)
B. -9
C. 3(sec2? + tan2?)
D. 9
Answer: D
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A. y = 
x + 
B. y = - 
x + 
C. y = - 
x - 
D. y = 
x - 
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A. y = -x + 4 B. y = x - 4 C. y = x + 4 D. y = -x - 4
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A. 20 acres B. 12 acres C. 4 acres D. 16 acres
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