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2 years ago

Please help i’ll give brainliest

Mathematics

1 answer:

Katena32 [7]2 years ago

7 0

Answer:

Step-by-step explanation:

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I need a thorough explanation for question 4 please. It’s about Operations of Powers/Exponents.

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1 year ago

Explain how the figure illustrates that 6(9) = 6(5) + 6(4)

My name is Ann [436]

Because 6 times 9 is 54, To make it longer they just multiplied then added. They multiplied 6 times 5 which is 30 then multiplied 6 times 4 then added the two which equal 54.

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3 years ago

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Help math pls its a drag and drop

STALIN [3.7K]

A goes in stock price decreased
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D goes in stock price decreased
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2 years ago

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| 7x28 = (748) + ( 7 *__) =

masya89 [10]

Answer:

-23

Step-by-step explanation:

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3 years ago

A random variable x follows a normal distribution with mean d and standard deviation o=2. It is known that x is less than 5 abou

Vaselesa [24]

Answer:

The mean of this distribution is approximately 3.96.

Step-by-step explanation:

Here's how to solve this problem using a normal distribution table.

Let $z$ be the

$\displaystyle z = \frac{x - \mu}{\sigma}$ .

In this question, $x = 5$ and $\sigma = 2$ . The equation becomes

$\displaystyle z = \frac{5 - \mu}{2}$ .

To solve for $\mu$ , the mean of this distribution, the only thing that needs to be found is the value of $z$ . Since

The problem stated that $P(X \le 5) = 69.85\% = 0.6985$ . Hence, $P(Z \le z) = 0.6985$ .

The problem is that the normal distribution tables list only the value of $P(0 \le Z \le z)$ for $z \ge 0$ . To estimate $z$ from $P(Z \le z) = 0.6985$ , it would be necessary to find the appropriate

Since $P(Z \le z) = 0.6985$ and is greater than $P(Z \le 0) = 0.50$ , $z > 0$ . As a result, $P(Z \le z)$ can be written as the sum of $P(Z < 0)$ and $P(0 \le Z \le z)$ . Besides, $P(Z < 0) = P(Z \le 0) = 0.50$ . As a result: