The triangles are similar. Find the missing side, angle or value of the variable.?R
a = 15 cmb = 111°
A. 59°
B. 10°
C. 15 cm
D. 111°
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Determine whether the argument is valid or invalid.All women are wealthy. Amanda is a woman. Therefore, Amanda is wealthy.
A. Valid B. Invalid
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Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.x cos t + x = 2t, y = t sin t + t, t = 
A. 2
B. 
C. 2 + ?
D. 
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Provide an appropriate response.Find the area of the shaded region.
A. 20 ft2 B. 12 ft2 C. 24 ft2 D. 32 ft2
Mathematics