Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: B
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Solve the given third- or fourth-order differential equation.D4y + 4 D3y - 9 D2y - 36 Dy = 0
A. y = c1e3x + c2e-3x + c3e4x B. y = c1 + c2e3x + c3e-3x + c4e4x C. y = c1 + c2e3x + c3e-3x+ c4e-4x D. y = c1e3x + c2e-3x+ c3e4x
Solve the problem.From year 1 to year 2 during a scientific survey, the number of a certain species of frog increased by 6194, bringing the worldwide total to 60,477. How many frogs of that species were there in year 1 of the survey?
A. 116,223 frogs B. 59,477 frogs C. 60,677 frogs D. 54,283 frogs
Add.32,231 + 23,154
A. 55,745 B. 55,746 C. 64,385 D. 55,385
Solve and give interval notation for the solution set. Then graph the solution set.x + 5 < - 
or x + 5 > 
A. (- 
, - 
)
B. (-?, - 
) ? (- 
, ?)
C. (-?, - 
) ? (- 
, ?)
D. (- 
, - 
)