I believe you multiply all sides to get the area and you add all sides to get the perimeter.
Answer:
The answer is A I suppose
Answer:
a+b=d because of the exterior angle theorem that states "an exterior angle of a triangle is equal to the sum of it's two opposite non- a adjacent interior angles.
Answer:
0.1587
Step-by-step explanation:
Applying,
P(μ>40) = P(μ-(x-μ)/σ)............. Equation 1
Where P(μ>40) = probability of the age of the random subscriber more than 40 years μ = mean, σ = standard deviation, x = random subscriber
From the question,
Given: μ = 35 years, σ = 5 years, x = 40 years.
Therefore,
P(μ>40) = P(35-(40-35)/5) = P(35-(5/5)
P(μ>40) = 1-φ(1)
From the norminal probabilty table,
P(μ>40) = 1-0.8413
P(μ>40) = 0.1587
Your answer is 1/12
lmk if you need help on anything else