Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.3 + 12 + 27 + . . . + 108
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the method of undetermined coefficients to solve the differential equation.3
- 13
+ 4y = xe-2x; 
= - 
and y = 
when x = 0
A. y = 
e4x - 
ex/3 - 
xe-2x + 
e-2x
B. y = 
e4x + 
ex/3 + 
xe-2x + 
e-2x
C. y = 
e4x - 
ex/3 + 
xe-2x + 
e-2x
D. y = 
e4x - 
ex/3 + 
xe-2x + 
e-2x
Mathematics
Provide an appropriate response.In right triangle ABC with right angle C, find the indicated part. Round to the nearest 0.1°. Find B if a = 10 m and c = 16 m.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the value of the determinant.
A. -30 B. 15 C. 30 D. -45
Mathematics
Sketch the line that has the given slope and contains the given point.m is undefined, (-7, -6)
A. 
B. 
C. 
D. 
Mathematics