Find the slope of the line if it exists.
A. undefined slope
B. 0
C. 4
D. -4
Answer: A
Mathematics
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Factor the expression.7y3 - 21y2
A. 7y(y2 - 3) B. 7(y3 - 3y2) C. 7y2(y + 3) D. 7y2(y - 3)
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Solve the equation.5(y - 8) - (4y + 5) = -2
A. - 11 B. 43 C. - 47 D. - 43
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Find the exact value of the indicated trigonometric function of ?.tan ? = - 
, 270°< ? < 360°Find cos ?.
A. 8
B. 
C. 
D. 
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Graph the equation.9x2 + 25y2 = 225
A. 
B. 
C. 
D. 
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