Use Euler's formula to answer the question.A polyhedron has 13 vertices and 28 edges. How many faces does it have?
A. 11
B. 17
C. 41
D. 13
Answer: B
Mathematics
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Write the first four terms of the sequence.
A. 
, - 
, 
, - 
B. 
, - 
, 
, - 
C. - 
, 
, - 
, 
D. - 
, 
, - 
, 
Mathematics
Write the first four terms of the sequence.{n2 - n}
A. 1, 4, 9, 16 B. 0, 3, 8, 15 C. 0, 2, 6, 12 D. 2, 6, 12, 20
Mathematics
Solve.2y + 3y = -5
A. -5 B. 5 C. -1 D. 1
Mathematics
Find ?, if 
and
?
with ? in QIV
?
A. 330
B. 300
C. 240
D. 120
E. 45
Mathematics