Identify the equation as either an identity or not.sin 2x = 2 sin x
A. Identity
B. Not an identity
Answer: B
Mathematics
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Find the surface area of the surface S.S is the upper cap cut from the sphere x2 + y2 + z2 = 169 by the cylinder 
.
A. 104 B. 3744? C. 208? D. -208?
Mathematics
Solve the problem.A furniture manufacturer uses two types of fabric for a certain type of sofa. It is estimated that between 30 and 40 rolls of fabric A will be needed, and that the total number of rolls needed will be less than 50. Graph the possible number of rolls of fabric that are needed. 
A. 
B. 
C. 
D. 
Mathematics
Multiply.(9)(5)
A. 14 B. 40 C. 45 D. 50
Mathematics
Write the sentence as an equation.The product of -15 and -11 yields 165.
A. 15(11) = 165
B. -15 - 11 = 165
C. -15(-11) = 165
D. 
= 165
Mathematics