Answer:
服務公司夢見手裡神經衰弱損失老師Jan損失啊愛沙尼亞是不是交往嗎就是歷史數據算不算雙氧水本身就是世界軍事實力宿舍江蘇省本書不是私人損失誰來是不是不是說備考無數台灣92我7是6給我看數字不是說本書我忘記說了結束時間舒適感五四運動和我萬家燈火下半身思考的劇的
Answer:
tan theta = 2 sqrt(5) /15
Step-by-step explanation:
sin theta = opp / hypotenuse
sin theta = 2/7
We can use the Pythagorean theorem to find the length of the adjacent side
a^2 + b^2 = c^2
2^2 +adj^2 = 7^2
4 + adj^2 = 49
adj ^2 = 49-4
adj^2 = 45
Taking the square root of each side
adj = sqrt(45) = sqrt(9*5) =sqrt(9) sqrt(5) = 3 sqrt(5)
The tan theta = opp/ adj
tan theta = 2 / 3 sqrt(5)
Multiply by sqrt(5) / sqrt(5)
= 2 sqrt(5) / 3 *5
= 2 sqrt(5) /15
Answer:
Sixth day
Step-by-step explanation:
Keep adding 2 until you get to 13
Answer:

Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
<em>See comment for complete question</em>
Required

First, calculate the probability that the none of the 4 selected is working;



Using the complement rule, the probability that at least 1 is working is:

This gives:

