Answer:
a) decay
b) 2,950,000
c) 0.025
d) 
e) 2,409,123
Step-by-step explanation:
<u>Part (a)</u>
Exponential DECAY, since the population was decreasing annually.
<u>Part (b)</u>
Initial amount = 2,950,000 people (in the year 2000)
<u>Part (c)</u>
Decay factor = 2.5% = 0.025 (in decimal form)
<u>Part (d)</u>
General form of exponential decay function:
where:
- a = initial amount
- r = rate of decay (in decimal form)
- x = time (in years)
Given:
<u>Part (e)</u>
To determine the city's population in 2008:
Answer:
ok
Step-by-step explanation:
ty
Complete question is in comment section :
Answer:
68%
Step-by-step explanation:
Mean = 25
Standard deviation = 5
The percentage of trees between 20 and 30
20 trees = 1 standard deviation below the mean ; mean - 1(standard deviation)
25 - 5 = 20
30 trees = 1 standard deviation above the mean ;
Mean + 1(standard deviation) ;
25 + 5 = 30
This means, 20 and 30 lies ±1 standard deviation from the mean which according to the empirical rule is 68%
According to the empirical rule :
Answer:
2,0
Step-by-step explanation:
Sorry if I got it wrong.
Answer:
18°
Step-by-step explanation:
The m∠A ≅ x+32
The angle opposite 36° is 36° & the angle opposite x+126 is x + 126: Vertical angles theorem
The three angles in the triangle with m∠A are 36°, x+126°, and x+32°(m∠A)
36+x+126+x+32 = 180 : Angles in a triangle theorem
194+2x = 180
2x = -14
x= -7
m∠A ≅ -14+32
m∠A≅ 18°
I hope this helps!!!
