Estimate the value of √15 to the nearest tenth.

Mathematics

2 answers:

Marianna [84]1 year ago

5 0

Answer: 3.9 Hope this helps, please consider making me Brainliest.

Step-by-step explanation:

We can use our knowledge of perfect square (roots). The perfect square roots are 1, 4, 9, 16, 25, etc. The closest one that sqrt15 is near to is 16. The sqrt of 16 is 4, so if 15 + 1 = 16, the correct answer is 3.9. Hope this helps, please consider making me Brainliest.

Nadya [2.5K]1 year ago

3 0

Answer:

3.9

Step-by-step explanation:

√15 = 3.9, rounded.

You might be interested in

Orange M&M’s: The M&M’s web site says that 20% of milk chocolate M&M’s are orange. Let’s assume this is true and set

SOVA2 [1]

Answer:

The correct option is (A).

Step-by-step explanation:

Let X = number of orange milk chocolate M&M’s.

The proportion of orange milk chocolate M&M’s is, p = 0.20.

The number of candies in a small bag of milk chocolate M&M’s is, n = 55.

The event of an milk chocolate M&M being orange is independent of the other candies.

The random variable X follows a Binomial distribution with parameter n = 55 and p = 0.20.

The expected value of a Binomial random variable is:

$E(X)=np$

Compute the expected number of orange milk chocolate M&M’s in a bag of 55 candies as follows:

$E(X)=np$

$=55\times 0.20\\=11$

It is provided that in a randomly selected bag of milk chocolate M&M's there were 14 orange ones, i.e. the proportion of orange milk chocolate M&M's in a random bag was 25.5%.

This proportion is not surprising.

This is because the average number of orange milk chocolate M&M’s in a bag of 55 candies is expected to be 11. So, if a bag has 14 orange milk chocolate M&M’s it is not unusual at all.

All unusual events have a very low probability, i.e. less than 0.05.

Compute the probability of P (X ≥ 14) as follows:

$P(X\geq 14)=\sum\limits^{55}_{x=14}{{55\choose x}0.20^{x}(1-0.20)^{55-x}}$