Find the area of the triangle using one of the area formulas.b = 13.9 ftA = 15.17°C = 105.17°
A. 28.3 ft2
B. 23.3 ft2
C. 61.6 ft2
D. 56.6 ft2
Answer: A
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Graph the given equation, indicating vertices, foci, and asymptotes (if it is a hyperbola).
+ 
= 1
A. 
Vertices: (±20, 0); Foci (0, ±12)
B. 
Vertices: (±16, 0); Foci: (±20, 0)
C. 
Vertices: (0, ±20); Foci (0, ±12)
D. 
Vertices: (±20, 0); Foci (±12, 0)
Magazine circulation after t years is modeled by the function
.
?
At what circulation level is magazine circulation growing at the fastest rate? Round your answer to two decimal places, if necessary.
?
A. 11.00 thousand B. 22 thousand C. 3.67 thousand D. 5 thousand
For the functions f(x) and g(x), determine the domain of (f + g)(x) (the sum of f and g).f(x) = 
, g(x) = -5x3
A. {x ? x is a real number and x ? 0} B. {x ? x is a real number} C. {x ? x is a real number and x ? -11} D. {x ? x is a real number and x ? 11}
Solve the problem.Find the area A of a triangle with height 8 in and base 8 in.
A. A = 64 in B. A = 32 in2 C. A = 64 in2 D. A = 32 in