Is this in regards to probability?
The ones I can think of are one third, 1 to 3, and 1:3
Answer:
A) 0.335; B) 0.343; C) 0.599
Step-by-step explanation:
For part A,
To find the probability that the user has more than one infection per year, we can either add together the probabilities for 2, 3, 4 and 5; or we can add together the probabilities for 0 and 1 and subtract them from 1:
1-(P(X = 0)+P(X = 1))
= 1-(0.343+0.322) = 1-0.665 = 0.335
For part B,
The probability that the user has no infections per year is P(X = 0); this is 0.343.
For part C,
The probability that the user has between 1 and 3 infections (inclusive) per year is
P(1 ≤ X ≤ 3) = 0.322+0.201+0.076 = 0.599
<u>Part 1: Finding radius</u>
The radius of a circle is defined as the distance from the center to a point on the circle's circumference.
Using the distance formula,
<u>Part 2: Finding the point with x-coordinate -15</u>
Let the y coordinate of the point be y. Then, we have the point (-15, y). Substituting into the distance formula,
Answer:
- 2 + 1i
Step-by-step explanation:
A complex number x + yi can be expressed in coordinate form as
x + yi → (x, y ), thus
- 7 + 4i → (- 7, 4 )
3 - 2i → (3, - 2 )
Given 2 points (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
[ 0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]
Here (x₁, y₁ ) = (- 7,4) and (x₂, y₂ ) = (3, - 2 )
midpoint = [ 0.5(- 7 + 3), 0.5(4 - 2) ] = [0.5(- 4), 0.5(2) ] = (- 2, 1 )
and (- 2, 1 ) → - 2 + 1i → - 2 + i