Determine the reference angle for the given angle.? = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the coordinates of the vertices and foci of the ellipse.x2 + 2y2 = 100
A. V(-10, 0), V(10, 0), F
, F
B. V(-10, 0), V(10, 0), F
, F
C. V(-100, 0), V(100, 0), F(0, -50), F(0, 50)
D. V
, V
, F
, F
Mathematics
The circle graph shows the results of the student council presidential election. The complete circular area represents 100% of the votes.
The circle graph shows what percent of the vote each person received.Who got the fewest votes?
A. Lili B. Matt C. Ben D. Gina
Mathematics
Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? in quadrant III Find sin 2?.
A. - 
B. - 
C. 
D. 
Mathematics
Decide whether the limit exists. If it exists, find its value.lim f(x)x?1
A. -1 B. 0 C. Does not exist D. 1
Mathematics