Identify the vertex of the given parabola.f(x) = 
x2
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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True or false?In Euclidean geometry, if two triangles have different side lengths, they cannot have identical angles.
A. True B. False
Mathematics
Find -x.x = 29
A. -29
B. 29
C. 0
D. 
Mathematics
Determine all solutions of the equation in radians.Find tan 
, given that tan x = -3 and x terminates in 90° < x < 180°.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(
- 9i)(
+ 9i)
A. 3 - 81i B. 12 C. 84 D. 3 + 81i
Mathematics