Use a truth table to determine whether the argument is valid.p ? q~q

A. Valid
B. Invalid

Answer: A

Mathematics

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Find fx, fy, and fz.f(x, y, z) = ln (xy)z

A. f_x = ; f_y = ; f_z = z ln (xy)^{z - 1}
B. f_x = ; f_y = ; f_z = ln (xy)
C. f_x = z ln ; f_y = z ln ; f_z = ln (xy)
D. f_x = - ; f_y = - ; f_z = ln (xy)

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Mathematics

Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.The bird's wingspan is 21 .

A. cm B. m C. mm D. mL E. mg

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Mathematics

Find the integral.

A. 3(1 - 6x)e^3x-9x² + C
B. 3e^3x-9x² + C
C. (1 - 6x)e^3x-9x² + C
D. e^3x-9x² + C

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Mathematics

Find the volume of the composite figure. Round to the nearest hundredth if necessary.Largest possible sphere removed from cube(Use 3.1 4 for ?.)

A. 3.81 cm3 B. 8 cm3 C. 4.19 cm3 D. 12.19 cm3

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Mathematics