9514 1404 393
Answer:
- 20% decay
- 40% growth
- 80% decay
- 40% decay
- 60% growth
Step-by-step explanation:
The "growth factor" is the number that has an exponent. Subtracting 1 from that gives the growth rate. The growth rate can be expressed as a percentage by multiplying it by 100%. If it is negative, it represents a rate of decay.
For example, the growth factor of 0.8 is a growth rate of 0.8-1 = -0.2 = -20%, a decay of 20%.
__
Here, we'll list the growth factor and the rate of change:
growth factor ⇒ rate of change
0.8 ⇒ 20% decay
1.4 ⇒ 40% growth
0.2 ⇒ 80% decay
0.6 ⇒ 40% decay
1.6 ⇒ 60% growth
Answer:
x=3, y=-1. (3, -1).
Step-by-step explanation:
x-3y=6
2x+2y=4
--------------
x=3y+6
2(3y+6)+2y=4
6y+12+2y=4
8y+12=4
8y=4-12
8y=-8
y=-8/8
y=-1
x-3(-1)=6
x+3=6
x=6-3
x=3
rewrite the slope-intercept form
Using the slope-intercept form.
Answer:
3
≈ 9.45
Step-by-step explanation:
calculate the distance d between the points using the distance formula
d = 
with (x₁, y₁ ) = (- 1, 8 ) and (x₂, y₂ ) = (8, 5 )
d = 
= 
= 
= 
= 
= 
= 
×
= 3 ← exact value
≈ 9.49 ( to 2 dec. places )
