Write the sum in summation notation.
- 
+ 
- . . . - 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use the method of undetermined coefficients to solve the differential equation.2
+ 11
+ 12y = -3x
A. y = c1e-4x + c2e-3x/2 - 
- 
x
B. y = c1e4x + c2e3x/2 + 
- 
x
C. y = c1e-4x + c2e-3x/2 + 
+ 
x
D. y = c1e-4x + c2e-3x/2 + 
- 
x
Mathematics
Find the missing values.
A. $107; $88.81 B. $3.09; $15.10 C. $309.23; $291.04 D. $88.81; $36.38
Mathematics
Graph.-4x + 21 = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations by substitution, if a solution exists.
A. x = 
, y = 
B. x = 
, y = 
C. No solution
D. Many solutions
Mathematics