If n is an integer, n ? 180° represents an integer multiple of 180°, and 
represents an odd integer multiple of 90°. Decide whether the expression is equal to 0, 1, -1, or is undefined. tan(n ? 180°)
A. 1
B. -1
C. 0
D. Undefined
Answer: C
Mathematics
You might also like to view...
Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. 
B. 
C. -
D. - 
Mathematics
Plot the ordered pairs on the rectangular coordinate system provided.A
, B(-3, 4)
A. 
B. 
C. 
D. 
Mathematics
Find the vertices and the foci of the given ellipse.81x2 + 36y2 = 2916
A. V: (0, 81), (36, 0)
F: (0, 9), (6, 0)
B. V: (0, -9), (0, 9);
F: (0, - 3
), (0, 3
)
C. V: (-9, 0), (9, 0);
F: (- 3
, 0), (3
, 0)
D. V: (0, -81), (0, 81);
F: (0, -9), (0, 9)
Mathematics
Solve the problem.Dianne and Dave split a $40.46 dinner bill plus a 20% tip. How much did each person pay, rounded to the nearest cent?
A. $48.55 B. $4.05 C. $24.28 D. $20.23
Mathematics