Fill in the blank with one of the words or phrases listed below. 
An angle that measures 90° is called a(n) 
angle.
A. straight
B. right
C. supplementary
D. complementary
Answer: B
Mathematics
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Provide an appropriate response.True or false? The graph of Ax2 + Bxy + Cy2 + Dx + Ey + F = 0 is a hyperbola if AC < 0.
Answer the following statement true (T) or false (F)
Mathematics
Find the center of mass of a thin plate covering the given region with the given density function.The triangular region cut from the first quadrant by the line y = -x + 6, with density ?(x) = x
A. 
= 
, 
= 3
B. 
= 3, 
= 
C. 
= 
, 
= 
D. 
= 3, 
= 3
Mathematics
Use the table to find the indicated limit.If f(x) = 
, find 
f(x).
A. limit = 6 B. limit = 5.5 C. limit does not exist D. limit = 0
Mathematics
Perform the indicated operation
Express 0.00000043 using scientific notation.
Mathematics