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4 years ago

Tan(tan^-1(sqrt(3)/2))

Mathematics

1 answer:

nordsb [41]4 years ago

3 0

Sorry i don't know. i tried. Can you try and help me?

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What is a locator point?

mojhsa [17]

Answer:

Step-by-step explanation:

Hope this helped!

(if this is a mulitlple choice question then choose B & D)

6 0

3 years ago

there are 50 jelly beans in a jar. 32 percent are black, 52 percent are green, and 16 percent are purple. how many green jelly b

Reil [10]

100% = 50
1% = 50/100 = 0.5

52% = 0.5 x 52 = 26

There are 26 green jelly beans in the jar:)

8 0

3 years ago

Pls help fast!

Oksi-84 [34.3K]

Step-by-step explanation:

$\frac{16}{100} \times 40 \\ = \frac{16}{10} \times 4 \\ = 0.16 \times 4 \\ = \frac{16}{25} \\ = 0.64$

5 0

3 years ago

Pita has 12 coins in her bag.

Allushta [10]

Answer:27/220

Step-by-step explanation:

She must have 2 �1 coins and 1 50p coin.

She can choose the 2 �1 coins 3C2 = 3 ways.

For each of those 3 ways she can choose the

50p coin 9C1 or 9 ways.

That's 3�9=27 ways to get �2.50.

She can choose any 3 coins in 12C3 = 220 ways.

The desired probability is 27 ways out of

220 ways,or 27/220, or 13.5% of the time.

4 0

4 years ago

An insurance company study shows that 9% of U. S. adults have diabetes. Suppose 8 US adults are selected at random. LetX be the

Bogdan [553]

Using the binomial distribution, it is found that:

The mean of X is of 0.72.

The standard deviation of X is of 0.81.

<h3>What is the binomial probability distribution?</h3>

It is the probability of exactly <u>x successes on n repeated trials, with p probability </u>of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

For this problem, the parameters are given as follows:

n = 8, p = 0.09.

Hence the mean and the standard deviation are, respectively:

E(X) = np = 8 x 0.09 = 0.72.

$\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{8 \times 0.09 \times 0.91} = 0.81$

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

3 0

2 years ago