Use the graph, along with the indicated points, to give the solution set of the equation or inequality.y1 > y2
A. (-?, 1] ? [5, ?)
B. (1, 5)
C. [1, 5]
D. (-?, 1) ? (5, ?)
Answer: B
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Solve the problem.The focal length f of a lens with index of refraction n is 
= (n - 1)
where R1and R2 are the radii of curvature of the front and back surfaces of the lens. Express f as a rational expression.
What will be an ideal response?
The volume of a right-circular cylinder of radius r and height h is 
.
?
Suppose the radius and height of the cylinder are changing with respect to time t. At a certain instant of time, the radius and height of the cylinder are 2 and 3 in. and are increasing at the rate of 0.5 and 0.4 in./sec, respectively.
?
How fast is the volume of the cylinder increasing?
What will be an ideal response?
Factor.t2 + 1.1t + 0.28
A. Prime B. (t + 0.4)(t + 0.7) C. (t + 1.1)(t + 0.28) D. (t + 0.55)2
Solve.1 - 4x ? 10 or 1 - 4x < 2
A. 
, 
B. 
? 
C. 
? 
D. 