Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.a + ar + ar2 + . . . + ar9

A.
B.
C.
D.


Answer: C

Mathematics

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Find the value of d2y/dx2 at the point defined by the given value of t.x = 7 sin t, y = 7 cos t, t = 

A.
B. -2
C. 2
D. - 

Mathematics

Provide the proper response.Discuss the graph of the equation  +  = 1 if a = b.

What will be an ideal response?

Mathematics

Find the equation that the given graph represents.

A. P(x) = x5 - 4x3 + 12x2 + 10 B. P(x) = x4 + x3 - 10x2 + 10 C. P(x) = -x4 + x3 - 12x2 + 10 D. P(x) = -x5 - 10x2 - 10

Mathematics

Graph the hyperbola. -  = 1

A.

B.

C.

D.

Mathematics