Answer : 0.0129
Step-by-step explanation:
Given : Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is years and standard deviation is years.
Sample size :
Let X be the random variable that represents the age of fleets.
We assume that the ages of the fleets of the 10 largest U.S. commercial passenger carriers are normally distributed.
For z-score,
For x=14
By using the standard normal distribution table , the probability that the average age of these 40 airplanes is at least 14 years old will be :-
Hence, the required probability = 0.0129
The strategy or equation which do not solve this problem is letter A and B.
The letter A goes m=(30+45+35)/6, the question asked how many minutes Ella will babysit in six weeks. In a week Ella babysits for 110 minutes, instead of dividing it by 6 weeks (which is shown in the equation of letter A), you have to multiply by 6 weeks. It should go like this, m= (30+45+35) x 6.
Answer:
Therefore Joe is taller than the height of the tepee.
Step-by-step explanation:
Cone:
- Cone is three dimensional shape.
- Slant height of an object is a height that measured along a lateral surface from the vertex to the the base.
- The slant height of a cone is =
- The height of a cone is
- The volume of a cone =
- Lateral surface area is
Given that,
A cone shaped tepee has a radius of 4 feet and slant height of 7 feet.
The height of the cone is
feet
feet
≈5.74 feet
Given that, Joe is 6 feet tall.
Since 6 feet> 5.74 feet
Therefore Joe is taller than the height of the tepee.
The value of x° is 22° and exterior angle is 25.
Step-by-step explanation:
l can prove like this,
Here,2x°+(103-x)°=(6x-7)°...Being exterior angle
or,2x°+103°-x°=6x°-7°
or,x°+103°=6x°-7°
or,103°+7°=6x°-7°
or,5x°=110°
or,x°=110°÷5=22°
Now,
x°=22°
(6x-7)°=(6×22-7)°=125°
Answer:
0.6
Step-by-step explanation:
first you well have a 3 and then dived it by 5 and after you dived them to you well get the answer 0.6