Answer:
C) 
Step-by-step explanation:
Copy the original equation
Combine like terms
Simplify the b, then divide by 3
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Answer:
m= 4, b = 3 matches with y = 4x +3
m=5, b = -2 matches with y = 5x - 2
m = 3, b = 4 matches with y = 3x + 4
m = -2, b=5 matches with y = -2x + 5
Step-by-step explanation:
Slope-intercept form is <em>y = mx + b</em><em> </em>in which m = slope and b = y-intercept
Average speed = (1/2) (beginning speed + ending speed)
= (1/2) ( 13 m/s + 30 m/s )
= (1/2) ( 43 m/s )
= 21.5 m/s
Answer:
-6x=-58
Step-by-step explanation:
Answer:
about 81 years
Step-by-step explanation:
A graphing calculator can give you the answer easily.
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You can solve the problem algebraically by putting in the given number and solving for t.
30000 = 32000/(1 +12.8e^(-.065t))
12.8e^(-.065t) = (32000/30000) -1 = 1/15
e^(-.065t) = 1/(15·12.8) = 1/192 . . . . . divide by 12.8
-0.065t = ln(1/192) ≈ -5.257 . . . . . . take the natural log
t = -5.257/-0.065 ≈ 80.88 . . . . . . . .divide by the coefficient of t
It will take about 81 years for the number of trees to reach 30,000.