Find A if B = 20° and ? + ? = 120°.
?
?
Remember: The sum of the three angles in any triangle is always 180°.
?
A. A = 60°
B. A = 50°
C. A = 70°
D. A = 100°
E. A = 40°
Answer: E
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Sketch several solution curves.
= y2 - 1
What will be an ideal response?
Find the area of the geometric figure.Trapezoid
A. 138.6 sq in. B. 97.76 sq in. C. 65.8 sq in. D. 69.3 sq in.
Convert the angle to degrees, minutes, and seconds; or to decimal degrees (and round your result to the nearest hundredth of a degree).137°46'58''
A. 137.74 B. 137.78 C. 137.84 D. 137.79
Use a graphing calculator to graph the function using the given viewing window. Use the graph to decide if the function is one-to-one. If the function is one-to-one, give the equation of the inverse function.f(x) = 
; [-10, 10] by [-10, 10]
A. One-to-one; f-1(x) = 
B. One-to-one; f-1(x) = 
C. Not one-to-one
D. One-to-one; f-1(x) = 