A density curve is always on or above the horizontal axis. The area underneath a density curve is exactly 1. The area under a density curve and above any range of values is the relative frequency of all observations that fall in that range.
For this case we have that the equation of a line of the slope-intersection form is given by:
Where:
m: It's the slope
b: It is the cut-off point with the y axis
We have the following points:
Substituting:
Thus, the equation is of the form:
We substitute one of the points to find the cut point "b":
Thus, the equation is:
Answer:
To find the x intercept, sub in 0 for y and solve for x...
-2x + 5y = -20
-2x + 5(0) = -20
-2x = -20
x = -20/-2
x = 10....so the x int is (10,0)
Answer:
6.71
Step-by-step explanation:
From Pythagoras theorem, we know that;
x^2 = 6^2 + 3^2
x^2 = 36 + 9
x^2 = 45
x = sqrt(45)
x = 6.71
In 2015, eighty-seven babies per one thousand died before reaching one year of age. This figure is called the infant mortality rate.
Infant mortality is defined as a child dying before turning one. The number of newborn deaths for every 1,000 live births is known as the infant mortality rate. The infant mortality rate is a significant indicator of the general health of a society in addition to providing us with valuable information on maternal and baby health. In the United States, there were 5.4 infant deaths for every 1,000 live births in 2020.
Learn more about infant mortality rate here: brainly.com/question/13493110
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