Answer:
-3
Step-by-step explanation:
The circumference of a circle:
2丌r
In this case, the radius:
10.4÷2
=5.2cm
The circumference
=2兀(5.2)
=2(5.2)兀
=10.4兀
Therefore the answer is 10.4兀.
Hope it helps!
<span>For this case we have the following function:
</span>

<span> To find the axis of symmetry, the first thing to do is to derive the function.
We have then:
</span>

<span> Equaling zero we have:
</span>

<span> We clear the value of x.
We have then:
</span>

<span>
Answer:
The axis of symmetry is given by:
x = -2</span>
Answer:
1
Step-by-step explanation:
Given :
Mean, μ = 4
Standard deviation, s = 0.8
Sample size, n = 30
The distribution is independent.
Z = (x - μ) / s /sqrt(n)
Probability that downtime period is between 1 and 5
P(1≤ x ≤ 5) :
[(x - μ) / (s /sqrt(n))] ≤ Z ≤ [(x - μ) / (s /sqrt(n))]
[(1 - 4) / (0.8 /sqrt(30))] ≤ Z ≤ [(5 - 4) / (0.8 /sqrt(30)]
[-3 / 0.1460593] ≤ Z ≤] 1 / 0.1460593]
P(-20.539602 ≤ Z ≤ 6.8465342)
P(Z ≤ 6.8465342) - P(Z ≤ - 20.5396)
P(Z ≤ 6.8465342) = 1 (Z probability calculator)
P(Z ≤ - 20.5396) = 0 (Z probability calculator)
1 - 0 = 1
8x+4 would be the answer if you combine like terms