Answer:
The standard deviation of the sample mean is
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
The sample size is 
Generally the standard deviation of the sample mean is mathematically represented as

substituting values


Answer:
A skateboarder travels down 2 meters a second
Step-by-step explanation:
The slope is 4 / 2 = 2
5 star, thank, and brainliest if helpful!
<span>log_9 x + log_9 (x + 12) = log_9 64?
answer is x=4</span>
I wanna say it’s letter f or j I’m not sure.
For simplicity’s sake:
D = dogs, C = cats, R = rabbits
Since the dogs and the cats are the same number, we can say C = D.
R = 1/4D
2D + 1/4D = 36
Combine like terms and get the same denominator
9/4D = 36
9D = 144
D = 16
Now we know that D is 16, so C must be 16 as well. That leaves us with 32 cages.
36 - 32 = 4 rabbit cages. To double check this, 1/4 of 16 does equal 4.
Final answer: 16 D, 16 C, 4 R