Tell whether the expression is a polynomial. If it is, give its degree.1 - 3x
A. Polynomial; degree -3
B. Polynomial; degree 3
C. Polynomial; degree 1
D. Not a polynomial
Answer: C
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Sketch the indicated set. Describe the boundary of the set. Finally, state whether the set is open, closed or neither.{(x, y) : 1 < (x - 2)2 + y2 ? 3}
A. 
The boundaries are two circles, one of
radius 1 and the other of radius 3, both
centered at (2, 0). The set is neither closed or open.
B. 
The boundary is the circle of radius 3
centered at (2, 0). The interior is the
set of all points within the circle.
The set is open.
C. 
The boundary is the circle of radius 1
centered at (2, 0). The interior is the set
of all points within the circle.
The set is closed.
D. 
The boundaries are two circles, one of
radius 1 and the other of radius 3, both
centered at (2, 0). The interior is the set
of all points in between the two circles.
The set is closed.
Provide an appropriate response. A group of printers were advertised in the Sunday supplement. The prices listed were $129, $275, $475, $139, $159, $210, $425, $159. What was the standard deviation from the mean to the nearest dollar:
A. $135 B. $246 C. $346 D. $67
Provide an appropriate response.Solve the following quadratic equation: 6x2 + x = 1
Fill in the blank(s) with the appropriate word(s).
Find the area of a sector of a circle having radius r and central angle ?. If necessary, express the answer to the nearest tenth.r = 19.0 m, ? = 20°
A. 0.6 m2 B. 63.0 m2 C. 3.3 m2 D. 126.0 m2