Solve.The circumference of a circle is 125.6 centimeters. Find the diameter. (Use ? = 3.14 as an approximate value.)

A. 4 cm
B. 20 cm
C. 40 cm
D. 400 cm


Answer: C

Mathematics

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Solve using the addition principle.4 = b - 4

A. 8  B. 0  C. -8  D. 0

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Use cylindrical coordinates to find the volume of the indicated region.the region bounded by the cylinders   and the planes  

A. 192? B. 768? C. 384? D. 576?

Mathematics

Find the Jacobian for the given transformation.x = 4u cosh 5v, y = 4u sinh 5v

A. 100u B. 100v C. 80v D. 80u

Mathematics

Find the equilibrium solution of the equation. Use a sketch of the direction field for  to determine whether the equilibrium is stable.u'(t) +  = -1

A. u = -8; stable
B. u = ; unstable
C. u =- ; stable
D. u = 8; unstable

Mathematics