Answer:
NO Solution
Step-by-step explanation:
First, from the first equation let's move the Y term to the other side to match with the second equation.
Now lets compare the two equations.
Since the left sides are the same but the right sides of the equations aren't, we can see there are no solutions to this system.
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Answer:
Step-by-step explanation:
Ginny determines that the population is decreasing at an average rate of 3% per year.
So, this is an exponential decay case
Formula :
where a is the amount after n years
a is the initial amount
r is the rate of depreciate
n is the number of years
Now we are given that When she began her study, the frog population was estimated at 1,200.
So, a=1200
r = 3% = 0.03
n =x
Substitute the values in the formula:
Hence function represents the frog population after x years is
f(x) = x-10
f(-7) = -7 -10
f(-7)= -17
I understand now !
Answer:
Explained
Step-by-step explanation:
Null hypothesis is something that states that there is no difference between the population means, while the alternative hypothesis states that there is difference between the two.
So, If the difference of the sample means is 10cm, and the standard deviation of the difference of sample means is 6 cm. Then the population means of the two districts will be different according to the manual solution.
Answer:
The population means of the two districts are different.
Step-by-step explanation: