Find the intervals where f''(x) < 0 ir f''(x) > 0 as indicated.f''(x) > 0 
A. (0, ?)
B. (-3, ?)
C. (-3, 3)
D. (0, 3)
Answer: A
Mathematics
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A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is the jack or queen of hearts.
A. 
B. 
C. 
D. 
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Use the method of undetermined coefficients to solve the differential equation.
+ y = x + sin 8x; 
= 1 and y = 0 when x = ?
A. y = - 
cos x + ? sin x + x - 
sin 8x
B. y = 
sin x + ? cos x + x - 
sin 8x
C. y = - 
sin x + ? cos x + x - 
sin 8x
D. y = - 
sin x - ? cos x + x - 
sin 8x
Mathematics
Provide an appropriate response.The addend is the total of the sums.
A. True B. False
Mathematics
Find the quotient. Simplify the answer.
÷ 4
A. 10
B. 
C. 1
D. 
Mathematics