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3 years ago

What does the pause sign in geometry mean?

Mathematics

1 answer:

ki77a [65]3 years ago

3 0

The two lines are representing two Parallel lines

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what is the capacity of a container that is filled in 35 minutes by a tap that supplies 240 liters per hour

AlekseyPX

Answer:

capacity = 140 liters

Step-by-step explanation:

1 h = 60 min

60 min ................ 240 l

35 min ...................... x l

x =35×240/60 = 8400/60 = 140 liters

8 0

3 years ago

Read 2 more answers

Help! :))

9966 [12]

Answer:

33114

120310 - 87196=33114

Step-by-step explanation:

6 0

3 years ago

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What is the approximate solution to this equation? x³ = 27.55

worty [1.4K]

Answer: 3

Explanation:

Since we’re finding a cube root, the closest cube root to 27.55 is 27. Since 3 cubed is 27, the cube root of 27.55 is about 3

6 0

3 years ago

The probability distribution of a random variable X is given. x 1 2 3 4 P(X = x) 0.4 0.1 0.3 0.2 Compute the mean, variance, and

Readme [11.4K]

Mean:

$E(X) = \displaystyle \sum_{x\in\{1,2,3,4\}}x\,P(X=x) = 1\times0.4 + 2\times0.1 + 3\times0.3 + 4\times0.2 = \boxed{2.3}$

Variance:

$\displaystyle V(X) = E\left((X-E(X))^2\right) = E(X^2) - E(X)^2 \\\\ E(X^2) = \sum_{x\in\{1,2,3,4\}}x^2\,P(X=x) = 1^2\times0.4 + 2^2\times0.1 + 3^2\times0.3 + 4^2\times0.2 = 6.7 \\\\ \implies V(X) = 6.7 - 2.3^2 = \boxed{1.41}$

Standard deviation:

$\sigma_X = \sqrt{V(X)} = \sqrt{1.41} \approx \boxed{1.19}$

5 0

3 years ago

Write the symbols for the probability that of all the outfielders, a player is not a great hitter.

Mumz [18]

The symbolic representation of the conditional probability

$P(G'|O) = \frac{P(G'nO)}{P(O)}$

This is a conditional probability problem ; which can be expressed explicitly as ;

The probability of not being a great hitter Given that the player is an outfielder
Recall :

Probability of A given B is defined as ;

$P(A|B) = \frac{P(AnB)}{P(B)}$

Let :

Probability that a player is an outfielders = P(O)

Probability that a player is a Great hitter = P(G)

Probability that a player is not a great hitter = P(G')

Probability that a player is not a great hitter given that he is an outfielder = P(OnG')

Therefore, we have :

$P(G'|O) = \frac{P(G'nO)}{P(O)}$

Learn more : brainly.com/question/18153040

7 0

3 years ago