Find the limit . Hint: If x = rcos? and y = rsin?, then (x,y) --> (0, 0) if and only if r --> .

What will be an ideal response?


Mathematics

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Find the common ratio.5, -5, 5, -5, 5, . . .

A. -1 B. -5 C. 1 D. 5

Mathematics

Give a formula for a piecewise-defined function f for the graph shown.

A.
f(x) = 
B.
f(x) = 
C.
f(x) = 
D.
f(x) = 

Mathematics

Provide an appropriate response.For the system  4x + 13y = 11  6x - 8y = 19,write the determinant Dx.(Do not evaluate the determinant.)

A.
det 
B.
det 
C.
det 
D.
det 

Mathematics

Simplify the factorial expression.

A.
B. 25n2 - 5n
C.
D.

Mathematics