This can be solved using the formula for t test which is = x - mu over standard deviation divided by the square root of the number of samples. In this case, it is 1185 - 1200 over 70 divided by square root of 100 which give us a value of 2.14 which is equal to .9839 in area. Only rarely, just over one time in a hundred tries of 100 light bulbs, would the average life exceed 1200 hours.
4/5 = 8/10 (times top and bottom by 2) 7/10 + 8/10 = 15/20 = 3/4
Answer:
Step-by-step explanation:
First, we need to find the slope, which is defined as the change in y over the change in x:
To find a slope that's perpendicular to that, we just take the negative reciprocal of that slope, which is .
I hope this helped.
<em>Refer to the attachment!!~</em>
Side ≈ 5.2915
This is an arithmetic sequence with a common difference of 1.23...that means u add 1.23 to each term to find the next term.
1.31 + 1.23 = 2.54
2.54 + 1.23 = 3.77
3.77 + 1.23 = 5 <== ur next term
