Write interval notation.{x? x ? 3}
A. (-?, 3)
B. [3, ?)
C. (-?, 3]
D. (3, ?)
Answer: B
Mathematics
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Set up the general equation from the given statement.The illumination I produced on a surface by a source of light varies directly as the candlepower c of the source and inversely as the square of the distance d between the source and the surface.
A. I = 
B. I = 
C. I = 
D. I = 
Mathematics
Use implicit differentiation to find dy/dx and d2y/dx2.x2 + y2 = 5, at the point (2, 1)
A. 
= - 2; 
= -5
B. 
= - 
; 
= 0
C. 
= 2; 
= 5
D. 
= - 2; 
= 1
Mathematics
Approximate the numbers and place the correct symbol (< or >) between them.
A) –4 < 0
B) –4 < 1
C) –4 < –1
D) –4 > –1
E) –4 > 0
Mathematics
Graph the parabola.x = (y + 2)2
A. 
B. 
C. 
D. 
Mathematics