Answer:
40,000
Step-by-step explanation:
refer to attached.
the number 4 is found in the Ten Thousands (10,000) place
hence the number 4 has the value of
4 x 10,000
= 40,000
Mark placed a pool in his backyard, which is enclosed by a triangular fence. The radius of the pool is 20.5 feet How much of the
backyard is not covered by the pool? Use
1 answer:
Answer:
2644.415 feet spuared
Step-by-step explanation:
I think the attached photo is your full question, and my answer:
We need to find:
- the area of the pool = π = 3.14* = 1319.585 feet spuared.
- The area of the triangular fence = 1/2* 84*92 = 3964 feet spuared
So, the area of the backyard which is not covered by the pool is:
The area of the triangular fence - the area of the pool
= 3964 - 1319.585
= 2644.415
Hope it will find you well.
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Answer:
Approximately normal for large sample sizes
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this question:
The distribution is unknown, so the sampling distribution will only be approximately normal when n is at least 30.
So the correct answer should be:
Approximately normal for large sample sizes
Answer: £2530.64
Step-by-step explanation:
The formula for calculating amount is given as :
A = P
Where :
A = amount
P = principal
r = rate%
n = number of years
Substituting the values of each into the equation we have
A = 2000
A = 2000 ()
A = 2530.638037
A ≈ £2530.64