Evaluate.
x2 - 2 for x = 3
A. 10
B. 15
C. 13
D. 8
Answer: C
Mathematics
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Solve the differential equation.y'' + 8y' - 5y = 0
A. y =e
x (C1 e-4x + C2 e4x )
B. y = e4x(C1e
x + C2e-
x )
C. y = e-4x(C1e
x + C2e-
x )
D. y = e-4x(C1 cos 
x + C2 sin 
x )
Mathematics
Use l'Hopital's Rule to evaluate the limit.
A. -1
B. 1
C. 0
D. 
Mathematics
Find the standard deviation s for the given data. Round your answer to one more decimal place than the original data.Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores:43?15?33?23?17?45?57Compute the standard deviation(s).
A. 7,755.6 B. 9,255 C. 15.8 D. 33
Mathematics
Determine if the relation is a function.
A. No B. Yes
Mathematics