Simplify.
- 
A. - 
B. 
C. - 
D. - 1
Answer: C
Mathematics
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Determine if the given function y = f(x) is a solution of the accompanying differential equation.Differential equation: 3xy' + 3y = cos xInitial condition: y(?) = 0Solution candidate: y = 
A. No B. Yes
Mathematics
Find the standard equation of a parabola with the given focus or directrix. Assume that the vertex is at the origin.Focus (0, 6)
A. y2 = 24x
B. x2 = 24y
C. y2 = 6x
D. y = 
x2
Mathematics
Determine whether the syllogism is valid or invalid.All astronauts are healthy.Lawrence is not healthy. ? Lawrence is not an astronaut.
A. Invalid B. Valid
Mathematics
Write in exponential form.log77-9 = -9
A. 9-7 = 9-7 B. 7-9 = 7-9 C. 7-9 = 9-7 D. 7-9 = log79
Mathematics