Perform the indicated operations and simplify.

(3x + y)²


9x² + 6xy + y²

Mathematics

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Find the intervals on which the function is continuous.y =  

A. discontinuous only when ? = 0
B. discontinuous only when ? = ?
C. continuous everywhere
D. discontinuous only when ? = 

Mathematics

Find the missing measurement in the figure.  a = 1.3 m  b = 1.3 m c = 5.7 m

A. z = 5.7 m B. z = 3.2 m C. z = 4.1 m D. z = 3.1 m

Mathematics

Graph the function.f(x) = ln(x)

A.

B.

C.

D.

Mathematics

Find the center and radius of the circle whose graph is shown. Write the standard form of the equation of the circle.

A. r = ; (h, k) = (3, -1); (x + 3)2 + (y - 1)2 = 3
B. r = 3; (h, k) = (3, -1); (x - 3)2 + (y + 1)2 = 9
C. r = ; (h, k) = (3, -1); (x - 3)2 + (y + 1)2 = 3
D. r = 3; (h, k) = (3, -1); (x + 3)2 + (y - 1)2 = 9

Mathematics