Answer:
B. 70
Step-by-step explanation:
We have the sum given by
Now, we open the summation by substituting the values of 'i',
i.e. = (1+11) + (2+11) + (3+11) +(4+11) +(5+11)
i.e. = 12 + 13 + 14 + 15 + 16
i.e. = 70.
Hence, the sum of is 70.
So, option B is correct.
Answer:
Step-by-step explanation:
It is given that the length of triangle base is 26 that is BC=26.
A line, which is parallel to the base divides the triangle into two equal area parts.
Therefore, from the given information, .
Now, since it is given that A line, which is parallel to the base divides the triangle into two equal area parts, thus
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⇒
⇒
⇒
Mean is the average. Add the numbers together and divide the the quantity of numbers.
5 + 11 + 14 + 10 + 8 + 6 = 54
54 / 6 = 9
Mean = 9
Answer:
45 and 155
Step-by-step explanation:
Hey there!
Answer is 1/870, or in decimal form 0.0011.
Hope this helps. - M