Which of the following expressions correctly uses the properties of summations to represent
11
σ (3i²+17)
i=1
11
a) 3σ i²+17
i=1
11
b) 3σ (i²+17)
i=1
11 11
c) 3σ i * σ i+11*17
i=1 i=1
11
d) 3σ i²+11*17
i=1

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step-by-step explanation:

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answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.

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