Determine the phase shift of the function.y = -4 sin 
A. -4 units down
B. -4 units up
C. 
units to the right
D. 
units to the left
Answer: C
Mathematics
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Express the given expression in simplest form with only positive exponents.
-2
A. 
B. 
C. 
D. 9x8
Mathematics
Calculate the flux of the field F across the closed plane curve C.F = y2i + x3j; the curve C is the closed counterclockwise path formed from the semicircle 
0 ? t ? ?, and the straight line segment from (-5, 0) to (5, 0)
A. - 
B. 0
C. 
D. 125
Mathematics
Find the sum of the series, if possible.
A. 
B. 2
C. 1
D. Not possible, infinite
Mathematics
Multiply.-7 ? (-8)
A. 56 B. -63 C. 63 D. 64
Mathematics