Use set notation to list all the elements of the set.The letters needed to spell these words:tear, rate, rat, tea
A. {r,a,t}
B. {t,t,a,a,r,r,e}
C. {a,e,r,t}
D. {t,t,t,t,r,r,r,a,a,a,a,e,e,e}
Answer: C
Mathematics
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An open rectangular box with volume 
has a square base. Express the surface area of the box as a function S(x) of the length x of a side of the base.
What will be an ideal response?
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Sketch the graph and find the area of the region bounded below by the graph of the given function and above by the x-axis from 
to 
.
?
?
?
A. ?
sq units
?
B. ?
sq units
?
C. ?
sq units
?
D. ?
sq units
?
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Graph.y = - 
(x + 5)2 - 3
A. 
B. 
C. 
D. 
Mathematics
Find the focus and directrix of the parabola with the given equation.11x2 = 40y
A. Focus: 
, directrix: y = - 
B. Focus: 
, directrix: x = - 
C. Focus: 
, directrix: y = 
D. Focus: 
, directrix: y = - 
Mathematics