यदि प्रेक्षणों x + 1, x + 4, x + 5, x + 8, x + 11 का माध्य 10 है, अंतिम तीन प्रेक्षणों का माध्य है:
(A) 12.5 (B) 12.2 (C) 13.5 (D) 14.2
Answers
Answered by
1
Step-by-step explanation:
easy and please dont convert it in hindi
x+1+x+4+x+5+x+8+x+11 =10
5x+29=10
5x=-19
x=-3.8
-3.8+5 +-3.8+8+-3.8+11
12.6
Answered by
1
Answer:
(a+b)^2 = a^2 +2ab +b^2
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it is an identity of algebraic expressions
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