The sides of a triangle have lengths 8, 14, and 15. What kind of triangle is it?

Mathematics

1 answer:

BARSIC [14]3 years ago

3 0

It is an acute triangle bc 8 squared + 14 squared is 260 and that is more than 15 squared (225)

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If Brian’s brother took the boys to the mall at 11:30 AM and left at 1:45 PM, how much time did the boys spend at the mall?

Elodia [21]

Answer:

2 hours 15 minutes

Step-by-step explanation: 45 - 30 is 15 so now you just have to subtract the hours and since 11:00 only goes to 12 you would go to one after that so 1:00 is like 13 so 11 - 13= 2 so your answer is 1 hours and 15 minutes

5 0

3 years ago

Read 2 more answers

As the sample size becomes larger, the sampling distribution of the sample mean approaches a _____. a. binomial distribution b.

kkurt [141]

Answer:

c. normal probability distribution

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$