Find the coefficient a of the term in the expansion of the binomial.
BinomialTerm
A. a = 13
B. a = 10206
C. a = 45
D. a = -19683
E. a = 3024
Answer: B
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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
Solve the problem.In 1998, the population of Country C was 28 million, and the exponential growth rate was 1% per year. Find the exponential growth function.
A. P(t) = 280.01t , where P(t) is in millions and t is the number of years after 1998. B. P(t) = 28e0.01t, where P(t) is in millions and t is the number of years after 1998. C. P(t) = 28e0.01, where P(t) is in millions and t is the number of years after 1998. D. P(t) = 28e1t, where P(t) is in millions and t is the number of years after 1998.
Find the integral.
A. 
- 
+ C
B. - 
+ 
+ C
C. 
- 
+ C
D. - 
+ 
+ C
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 