Answer: 6.9 and 10.4
Step-by-step explanation:
The perimeter of the pentagon is 10 so you can either do 10 times 1.38 times 1/2 or do 5 times 1.38 and it equals 6.9
The perimeter of the hexagon is 12 and you follow the same steps so I did 6 times 1.73 and you get 10.4
Answer: need more information
Step-by-step explanation:
x= 3+√5/4,3-√5/4
Step-by-step explanation:
1.In general, given ax^2+bx+c=0, there exists two solutions where:
x= -b+√b^2 - 4ac/2a, -b-√b^2-4ac/2a
2.In this case, a=4, b=-6 and c=1.
x=6+√(-6)^2-4×4/2×4, 6-√(-6)^2-4×4/2×4
3.Simplify.
x=6+2√5/8, 6-√5/8
4.Simplify solutions.
x=3+√5/4, 3-√5/4
Answer:
0.853
Step-by-step explanation:
Use conditional probability. The probability of event A, given that event B has occurred, is:
P(A|B) = P(A and B) / P(B)
The probability that it is not raining, given that the flight leaves on time, is:
P(not raining | on time) = P(not raining AND on time) / P(on time)
P(not raining | on time) = 0.81 / (1 − 0.05)
P(not raining | on time) = 0.853
