A board 13 ft long leans against a vertical wall. If the lower end is being moved away from the wall at a rate of 0.1 ft/sec, how fast is the upper end coming down when the lower end is 12 ft from the wall?
What will be an ideal response?
?0.24 ft sec
Mathematics
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Write the proportion.$45 is to 54 bottles as $40 is to 48 bottles
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
The demand equation is 
.
?
Compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at 
.
?
A. 6; elastic
B. 
; inelastic
C. 5; elastic
D. 
;elastic
Mathematics
Find the vertices and foci of the given ellipse.16x2 + 3y2 = 48
A. Vertices: (4, 0) and (-4, 0);
Foci: (
, 0) and (-
, 0)
B. Vertices: (0, 16) and (0, -16);
Foci: (0, 3) and (0, -3)
C. Vertices: (0, 4) and (0, -4);
Foci: (0, 
) and (0, -
)
D. Vertices: (0, 16) and (0, -16);
Foci: (0, 
) and (0, -
)
Mathematics
Solve the inequality, then graph the solution.3x ? - 36
A. (-?, -12]
B. [-12, ?)
C. (-?, 12]
D. [12, ?)
Mathematics