Find a formula for the expression. Use sigma notation.
A. xny-1 + 
xn-kyk-1
B. + xny-1 + 
xn-kyk-1
C. xny-1 + 
xn-kyk
D. xny-1 + 
xn-kyk-1
Answer: D
Mathematics
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- 2 = 
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A. 9 B. 6 C. 18 D. 7
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Graph the circle with radius r and center (h, k).r = 2; (h, k) = (0, 0) 
A. 
B. 
C. 
D. 
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Write the slope-intercept form of the equation for the line passing through the given pair of points.(1, -6) and (5, -9)
A. y = - 
x - 
B. y = 
x - 
C. y = - 
x - 
D. y = 
x - 
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