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17 April, 03:05

Given below is the even-number function. Which of the following are equal to E (21) ? Check all that apply.

E (n) = 2n

A. E (15) + E (6)

B. 42

C. 23

D. E (11) + 10

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Answers (1)
  1. 17 April, 06:31
    0
    E (n) = 2n

    E (21) = 2 (21)

    E (21) = 42

    B works

    see others

    A. E (15) + E (6) = 30+12=42, yep

    B. 42 is confirmed

    C is wrong

    D. E (11) + 10=22+10=32, nope

    answer is A and B
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