Answer:
13, 11, 4, 16, 6, 22
Step-by-step explanation:
<em>Let the second digit be x and the last digit be y</em>
Given:
- Data set: 13, x, 4, 16, 6, y
- Mean = 12
- y = 2x or x = 2y
The mean of the data is the average. The average can be calculated by determining the sum of the terms and dividing it by the total digits.

Let us substitute the value of y (2x) in the data.

Now, add all the terms in the data and simplify.


Distribute the denominators and simplify.



Subtract 6.5 both sides and simplify.


Use cross multiplication and simplify.


To determine the value of "y", simply substitute the value of "x" into the expression that represents the value of "y".



When the x and y values are substituted in the data, we get;
Therefore, the data is 13, 11, 4, 16, 6, 22.
What you have to do is divide the number by one tenth
Answer = 796.2
Answer:
The ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Step-by-step explanation:
Height of a mountain, h = 90 feet
Upward velocity of a ball, u = 64 ft/s
Its height as a function of time can be written by using the second equation of motion as follows :
.....(1)
When it will hit the ground, f(x) = 0

It is quadratic equation.
t = -6 s and t = 10 s
Neglecting -6 seconds, the ball will hit the ground at 10 seconds.
For maximum height,
Put f'(x) = 0

Put t = 2 in equation (1)

Hence, the ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
I wouldn't put it on Brainly. I would read the book and work it out by myself instead. That way, if I was lucky, I might learn something.