Answer:
a. Slope=0.993
Step-by-step explanation:
The linear regression line can be represented as
y=a+bx
Where a is intercept and b is the slope of regression line.
The given regression line is
Highway mpg=7.903+0.993 city mpg.
Here, the intercept is 7.903 and the slope is 0.993.
The numerical value 0.993 of slope depicts that due to unit increase in city mpg the highway mpg increase by 0.993.
Answer:
4x +2y=10
2y=-4x+10
y=-2x+5
<u>y-3=-2</u>
x-7
y-3=-2x+14
y=-2x+17
Step-by-step explanation:
Answer:
about 10 times I hope it helps
Answer:
i think 1h but wait for someone else to answer to
Answer:
In 50 years there'll be approximately 3582 elephants.
Step-by-step explanation:
If they are decreasing at a rate of 9% per year, it means it's population by year is:
population(0) = 400000
population(1) = population(0)*(100% - 9%) = population(0)*(91%)
population(2) = population(1)*(91%) = population(0)*(91%)*(91%) = population(0)*(91%)²
population(3) = population(2)*(91%) = population(0)*(91%)²*(91%) = population(0)*(91%)³
And so on, so the number of population as years passes is:
population(n) = population(0)*(91/100)^n
In this case we want to know the population of elephants when n = 50, so we have:
population(50) = 400000*(0.91)^50 = 3582.033
In 50 years there'll be approximately 3582 elephants.
