Which equation is not a linear function? OA) 2x - 3y = 9 OB) 2x+4y - 12 = 0 OC) y=-3x - 7 OD) 6x + 4y = 8
2 answers:
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Answer:
(a) k=0.06217
(b)
(c) 556,755 is the population in 2012
Step-by-step explanation:
Population increased from 264,036 in 1990 to 491,675 in 2000.
Let assume , year 1990 as t=0
When t=0, population P = 264,036
When t=10, population P = 491,675
Exponential growth equation is P=P_0e^(kt)
is the initial population when t=0
So
When t=10, population P = 491,675
Plug in all the values and find out k
Divide both sides by 264036
To remove 'e' we take ln on both sides
The value of ln(e) = 1
Divide both sides by 10
k=0.06217
Exponential growth equation is
We know
Replace the value of k
Now , we find the population in 2012
For year 2012 , t= 12
So we plug on 12 for t and solve for P
P = 556755.09504
556,755 is the population in 2012
Answer:
Volume of square pyramid is 3466.6 cm³
Step-by-step explanation:
We are given:
Base edge of square pyramid = 20 cm
Height of square pyramid = 26 cm
We need to find Volume of square pyramid
The formula used is:
Where a is base edge and h is height of pyramid
Putting values in formula to find the volume
So, Volume of square pyramid is 3466.6 cm³