Evaluate the expression for the given replacement values.(7x - yz)4 for x = 2, y = 6, z = 3
A. 256
B. 648
C. -16
D. 331,776
Answer: A
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Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 3
Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the first-quadrant portion of the circle
if the density of the wire is 
A. 
= 5?, 
= 5?
B. 
= 
?, 
= 
?
C. 
= 
?, 
= 
?
D. 
= 0, 
= 
?
Find the missing parts of the triangle.B = 20.9°C = 104.7°b = 22.73
A. A = 54.4°, a = 53.81, c = 63.63 B. A = 52.4°, a = 63.63, c = 53.81 C. A = 52.4°, a = 61.63, c = 51.81 D. A = 54.4°, a = 51.81, c = 61.63
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|-1 ? x ? 1} range: all real numbers intercepts: (-1, 0), (1, 0) symmetry: x-axis, y-axis B. function domain: {x|x ? -1 or x ? 1} range: all real numbers intercepts: (-1, 0), (1, 0) symmetry: x-axis, y-axis, origin C. function domain: all real numbers range: {y|y ? -1 or y ? 1} intercepts: (-1, 0), (1, 0) symmetry: y-axis D. not a function