Round 12.5478 to the nearest hundredth's
2 answers:
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Answer:
x = 1.2
Step-by-step explanation:
Essentially, because ABCDE and JKLMN are similar, their corresponding sides have a common ratio. To find x, we can simply the ratio between NJ and its corresponding side equal to the ratio of another pair of corresponding sides.
3x = 3.6
x = 1.2
T-T this took waaaaaay too long to be helpful but I hope it is anyways!
Hello,
We suppose the property true for n:
1²+2²+...+n²=n(n+1)(2n+1) / 6
and we are going to demonstrate that the property is true for n+1:
1²+2²+..+(n+1)²=(n+1)*(n+2)*(2n+3)/6