Answer:
Distance= 6.6 miles
Bearing= N 62.854°W
Step-by-step explanation:
Let's determine angle b first
Angle b=20° (alternate angles)
Using cosine rule
Let the distance between the liner and the port be x
X² =8.8²+2.4²-2(8.8)(2.4)cos20
X²= 77.44 + 5.76-(39.69)
X²= 43.51
X= √43.51
X= 6.596
X= 6.6 miles
Let's determine the angles within the triangle using sine rule
2.4/sin b = 6.6/sin20
(2.4*sin20)/6.6= sin b
0.1244 = sin b
7.146= b°
Angle c= 180-20-7.146
Angle c= 152.854°
For the bearing
110+7.146= 117.146
180-117.146= 62.854°
Bearing= N 62.854°W
Answer:
'12 feet'
Step-by-step explanation:
Of these threee measurements, '12 feet' is closest to the height of a house.
Answer:
The probability of a bulb lasting for between 480 and 526 hours=0.74454
Step-by-step explanation:
We are given that
Standard deviation of the lifetime,
hours
Mean,
hours
We have to find the probability of a bulb lasting for between 480 and 526 hours.
![P(480](https://tex.z-dn.net/?f=P%28480%3Cx%3C526%29%3DP%28%5Cfrac%7B480-500%7D%7B20%7D%3C%5Cfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D%3C%5Cfrac%7B526-500%7D%7B20%7D%29)
![P(480](https://tex.z-dn.net/?f=P%28480%3Cx%3C526%29%3DP%28-1%3CZ%3C1.3%29)
![P(480](https://tex.z-dn.net/?f=P%28480%3Cx%3C526%29%3DP%28Z%3C1.3%29-P%28Z%3C-1%29)
![P(480](https://tex.z-dn.net/?f=P%28480%3Cx%3C526%29%3D0.90320-0.15866)
![P(480](https://tex.z-dn.net/?f=P%28480%3Cx%3C526%29%3D0.74454)
Hence, the probability of a bulb lasting for between 480 and 526 hours=0.74454
B 24 I the answer to your question
Answer:
B
Step-by-step explanation:
I did the test and got it right and it's pretty easy you just have to line up or bring in the 5 and 8 and you'll get you answer if it's right or wrong :3