Simplify the expression.
A. -5
B. -5j
C. 5
D. 5j
Answer: C
Mathematics
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Express in exponential form.(-7)(-7)(-7)(-7)
A. (-7)4 B. 74 C. 4-7 D. -74
Mathematics
Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cone x2 + y2 - z2 = 0 between z = 2 and z = 4Density: constant
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by using the quadratic formula.5x2 + x - 5 = 0
A. 
B. 
C. 
D. 
Mathematics
Determine the amplitude or period as requested.Period of y = 
cos 
A. 
B. 
C. 
D. 
Mathematics