Expand the expression using the Binomial Theorem.(x2 - 5y)4
A. x8 - 20x6y + 150x4y2 + 20x2y3 + 625y4
B. x8 - 20x6y + 150x4y2 - 500x2y3 + 625y4
C. x4 - 20x3y + 150x2y2 - 500xy3 + 625y4
D. x8 - 5x6y + 150x4y2 - 250x2y3 + 625y4
Answer: B
Mathematics
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Solve the differential equation subject to the given condition. Note that y(a) denotes the value of y at t = a. 
= 0.18y, y(11) = 3550
A. y = 3550 e0.18(t- 11) B. y = 0.18 e3550(t- 11) C. y = 35500.18(t- 11) D. y = 3550 e0.18(t+ 11)
Mathematics
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Mathematics
Write the phrase as a mathematical expression. Use x as the variable.The sum of a number and 15
A. 15x
B. x + 15
C. 
D. x - 15
Mathematics
Write the partial fraction decomposition of the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Mathematics