3 years ago

The mean of (x + 5), (x + 3), (2x + 1) and (x - 6) is 12. What is the value of x?

Mathematics

1 answer:

navik [9.2K]3 years ago

7 0

Answer:

x=9

Step-by-step explanation:

answers too short so cigdtusrysyksrytf7hiuf6s4td6figiio

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So using cosine rule

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