Answer:
Stabilizer with area = 14 cm².
Step-by-step explanation:
Area of the wing = 101.25 cm²
Rule of the thumb is that area of stabilizer must be about 1/6 to 1/8 of the area of wing. So, first we calculate 1/6 of the area of the wing and 1/8 of the area of the wing. Area of stabilizer must be in between these two numbers.
1/6 of the area of wing = 
1/8 of the area of wing = 
This means, the area of horizontal stabilizer must be in between 12.656 cm² and 16.875 cm². From the given options only one option lies in between these two numbers and that is 14 cm²
Therefore, area of a good stabilizer design from the given options would be 14 cm²
The probability of a screen being damaged is:
P(d)=3/13=0.23
Thus to get the probability that the first 10 sold were undamaged we use the binomial distribution formula:
P(x)=n!/((n-x)!x!)p^x(1-p)^(n-x)
from the question:
n=13, x=10, p=0.23
hence
P(x)=13!/((13-10)!10!)*0.23^(13-10)*(1-0.23)^(10)
simplifying the above we get:
P(x)=0.255
Can you post a picture of it, I can’t see the triangles.
Answer:
They aren't
Step-by-step explanation:
9/25 / 3= 3/8.3
3/10 x 3 = 9/30
none of those equal to each other
Answer: 6 hours
Step-by-step explanation:
Let x= the number of hours they've worked
12x+6x=108
Combine like terms
18x=108
Divide 18 on both sides
18/18 x=108/18
x=6
Hope this helps!! :)
Please let me know if you have any question
