Solve the triangle.b = 2, c = 4, ? = 80°
A. a = 4.15, ? = 71.7°, ? = 28.3°
B. a = 4.15, ? = 28.3°, ? = 71.7°
C. a = 3.15, ? = 71.7°, ? = 28.3°
D. a = 5.15, ? = 28.3°, ? = 71.7°
Answer: B
Mathematics
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Simplify.
A. - 
B. - 
C. - 
D. - 
Mathematics
Add or subtract vertically.Subtract x4 - 4x3 + x2 - 9x from 4x4 + 9x3 + 5.
A. 3x4 + 13x3 + x2 - 4x B. 3x4 + 13x3 + x2 - 9x + 5 C. 3x4 + 13x3 - x2 + 9x + 5 D. 3x4 + 5x3 - x2 - 9x + 5
Mathematics
Is the following sentence a statement: This sentence is false or ?2^2 = 4. Justify your answer.
What will be an ideal response?
Mathematics
Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = cos 
t, s(0) = 1
A. s = sin t
B. s = 2? sin 
t
C. s = 
sin 
t
D. s = 
sin 
t + ?
Mathematics