Answer:
P(X ≤ 5) = 0.84134
Step-by-step explanation:
This is a normal distribution problem with
μ = mean = 4 years
σ = standard deviation = 1 year
To find the probability that a terminal will last 5 years or less using excel, we follow these steps. P(X ≤ 5)
- Use an empty cell.
- Right click and go to “Insert Formula”.
- In the searchbox, type “Normdist” and click “Go.”
- Pick “NORMDIST” from the list and then click “OK” to open the Function Arguments window.
- Enter the data into the box. Type “5” in the X box, “4” in the Mean box, “1” in the Standard Deviation box and “true” in the cumulative box..
- Click “OK.”. This returns 0.84134474 in the cell you clicked in Step 1, which is the probability that a terminal will last 5 years or less using excel, we follow these steps. P(X ≤ 5).
P(X ≤ 5) = 0.84134
Answer:
45
Step-by-step explanation:
each exterior angle=180-172=8
number of sides=360÷8=45
Answer:
131.25
Step-by-step explanation:
There are 3 trapezoids that you need to find its area, all the areas are the same.
Area of trapezoid:
A=(a+b)/2*h
a = 20
b = 15
h = (20-15)/2 = 5/2
A = (20+15)/2*5/2
A = 43.75
3A (3 gardens) = 131.25
So first what you are going to do is divide synthetically your root aka factor into your given equation. Then you are going to kind of guess ands check to find the other factor by synthetically dividing what you have left which should be
x^2 +2x +1 by -5, 5 (to make sure there is no multiplicity), 1, and -1 until you get zero in your remainder spot. The number you used to divide will be your other root.
Whenever there's a denominator. Multiply all whole equation with the denominator. For example, the denominator here in the equation is 3. So we multiply the whole equation by 3.
Moving the x to the same term which goes for the same as the constant for easier in solving.
Moving to the another side, changing the sign/operator to opposite (From plus to minus, from multiply to divide.)
Move 2 to another side, aka to divide 18.
Therefore, the answer is x = 9.