Answer:
<h2>
12</h2>
Solution,
Summation FX= 5+10+6+12+X
=33+x
N(total no.of items)=5
Now,
Mean= summation FX/N
or 9=33+X/5
or 9*5=33+X ( cross multiplication)
or 45=33+X
or -x=33-45
or -x=-12
X=12
Hope this helps...
Good luck on your assignment..
Answer:
The last option is correct
Step-by-step explanation:
The town's population in 2008 is 78,600.
<h3>What is the population in 2008?</h3>
If the town's population is increasing linearly, it means that it increases by a constant number each year.
Linear equations have this form: a + bt
Where:
- a = initial value
- b = rate of increase
- t = number of y ears
The rate of linear increase = (population in 2006 - population in 2003) / (2006 - 2003)
(75,200 - 70,100) / 3
5100 / 3 = 1700
P(t) = 70,100 + 1700t
Population in 2008 = 70,100 + 1700(2008 - 2003)
70,100 + 1700(5)
70,100 + 8,500 = 78,600
To learn more about linear functions, please check: brainly.com/question/26434260
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answer: -6a square +2a
Step-by-step explanation:
2(-3a² + a)
=-6a square +2a
