Answer:
Around 27.2 years later
Step-by-step explanation:
This is compound decline problem. We use the formula:
Where
F is future amount (100)
P is present amount (229)
r is the rate of decrease (3% means 3/100 = 0.03)
t is the time in years (which we want to find)
So, lets substitute and solve:
So, around 27.2 years later, the population would reach 100
Answer:
bbbbbbbbbbbbbbbb
Step-by-step explanation:
Answer:
-12
Step-by-step explanation:
What it means by f(-1) is that x is -1.
So all you do is plug -1 into the x areas like this: -3(-1)^2+2(-1)-7=-12.
Answer:
y= -12x - 42
Step-by-step explanation:
slope intercept form is y=mx +b
y-6 = -12(x+4) simplify
y - 6 = -12x - 48 separate y by adding 6 to both sides of the equation
y = -12x - 42
Answer:
y = 2x + 1
Step-by-step explanation:
Find the slope
( -2 , -3) ( 2 , 5)
m = (y2 - y1 )/(x2 - x1)
x1= -2
y1 = -3
x2 = 2
y2 = 5
m = 5 - (-3)/ ( 2 - (-2)
m = (5 + 3) / ( 2 + 2)
= 8/4
= 2
m = 2
Using the equation of a line
y = mx + c
y - intercept point y
m - slope of the line
x - intercept point x
c - intercept
Substitute m into the equation
y = 2x + c
Substitute any of the two points given into the equation
( 2 ,5 )
x - 2
y - 5
y = 2x + c
5 = 2(2) + c.
5 = 4 + c
c = 5 - 4
c = 1
The equation of the line
y = 2x + 1
