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Evaluate the Sum Using the Given Information x1=4,x2=−1,x3=2,x4=1\mathrm { x } _ { 1 } = 4 , \mathrm { x } _ { 2 } = - 1 , \mathrm { x } _ { 3 } = 2 , \mathrm { x } _ { 4 } = 1

Question 153

Multiple Choice

Evaluate the sum using the given information.
- x1=4,x2=−1,x3=2,x4=1\mathrm { x } _ { 1 } = 4 , \mathrm { x } _ { 2 } = - 1 , \mathrm { x } _ { 3 } = 2 , \mathrm { x } _ { 4 } = 1 , and x5=−4\mathrm { x } _ { 5 } = - 4
∑i=15(2xi+xi) \sum _ { i = 1 } ^ { 5 } \left( 2 x _ { i } + x _ { i } \right)


A) 45
B) 19
C) 6
D) 8

Correct Answer:

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