Find the smallest possible area of an isosceles triangle that is circumscribed about a circle of radius r=4.
Select the correct answer.
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Solve the problem.The cost C of producing t units is given by C(t) = 2t2 + 7t, and the revenue R generated from selling t units is given by 
For what values of t will there be a profit?
A. t > 6 B. t > 8 C. t > 0 D. t > 7
Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. closed infinite interval; {x|x ? 1}; [1, ?) B. open infinite interval; {x|x > 1}; (1, ?) C. open infinite interval; {x|x < 1}; (-?, 1) D. closed infinite interval; {x|x ? 1}; (-?, 1]
Solve by using the quadratic formula.36x2 + 18x = -2
A. 
, 
B. 
, - 
C. - 
, - 
D. - 
, 
Solve.A ranger in fire tower A spots a fire at a direction of 40°. A ranger in fire tower B, which is 28 miles directly east of tower A, spots the same fire at a direction of 116°. How far from tower A is the fire?
A. 22 miles B. 33 miles C. 26 miles D. 24 miles