Find the domain of the rational function.f(x) = 
A. all real numbers except 10, ±2
B. all real numbers except 2, 100
C. all real numbers except 2, 10
D. all real numbers except ±10, 2
Answer: D
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The area of a triangular sheet of paper is 11 square inches. One side of the triangle is 5 inches more than three times the length of the altitude to that side. Find the length of that side and the altitude to the side.
A. an altitude of 11 inches, a side of 21 inches long B. an altitude of 2 inches, a side of 11 inches long C. an altitude of 1 inches, a side of 11 inches long D. an altitude of 11 inches, a side of 2 inches long E. none of these
Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.x = 2(y - 2)2 - 2 
A. 
opens left; vertex (2, 2);
axis of symmetry y = 2
B. 
opens right; vertex (-2, 2);
axis of symmetry y = 2
C. 
opens right; vertex (2, 2);
axis of symmetry y = 2
D. 
opens right; vertex (-2, -2);
axis of symmetry y = -2
Using switches, design a circuit that would find the truth values for the statement.
?
?
?
?
(a)
(b)
(c)
?
A. c
B. b
C. a
Find the exact value of the expression.tan 
A. 
- 2
B. 2 + 
C. 2 - 
D. -2 - 