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2 years ago

BRAINLIST + 100 POINTS

Mathematics

1 answer:

Drupady [299]2 years ago

7 0

Answer:

Heyaa!! My name is Pinky and im here to tell you that the answer is..

Step-by-step explanation:

!!(b) P( x < 4) = ( 5 + 10 + 2 + 9 ) / ( 5 + 10 + 2 + 9 + 33 + 12 + 15 + 3 + 1 ) = 13/45!!

!!(c) P(x = 6) = 15 / (5 + 10 + 2 + 9 + 33 + 12 + 15 + 3 + 1) = 1/6!!

!!(d) P( x ≥ 5 ) = (12+ 15 + 3 + 1) / (5 + 10 + 2 + 9 + 33 + 12 + 15 + 3 + 1) = 7/30!!

Have and Amazing Day now!!

~Pinky~

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Pyramid A is a square pyramid with a base side length of 7 inches and a height of 6 inches. Pyramid B has a volume of 3,136 in3.

julia-pushkina [17]

The answer is B.
V=(7) (7) (6) / 3
V=98 in 3
3136/98=32

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2 years ago

A baseball player has a batting average of 0.25. What is the probability that he has exactly 2 hits in his next 7 at bats

marissa [1.9K]

Answer:

The probability that he has exactly 2 hits in his next 7 at-bats is 0.3115.

Step-by-step explanation:

We are given that a baseball player has a batting average of 0.25 and we have to find the probability that he has exactly 2 hits in his next 7 at-bats.

Let X = Number of hits made by a baseball player

The above situation can be represented through binomial distribution;

$P(X = r) = \binom{n}{r}\times p^{r} \times (1-p)^{n-r}; x = 0,1,2,......$

where, n = number of trials (samples) taken = 7 at-bats

r = number of success = exactly 2 hits

p = probability of success which in our question is batting average

of a baseball player, i.e; p = 0.25

SO, X ~ Binom(n = 7, p = 0.25)

Now, the probability that he has exactly 2 hits in his next 7 at-bats is given by = P(X = 2)

P(X = 2) = $\binom{7}{2}\times 0.25^{2} \times (1-0.25)^{7-2}$

= $21 \times 0.25^{2} \times 0.75^{5}$

= 0.3115

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3 years ago

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snow_lady [41]

Answer:

A. It provides carbon monoxide to help plants grow.

Step-by-step explanation:

The only incorrect option is that carbon monoxide is required by plant, but the correct statement would be carbon dioxide is required my plants, for its growth, which helps to perform the process of photosynthesis.

The rest of the statements are correct.

As, the atmosphere acts as a blanket, which protects the earth from the harmful rays of the sun.

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And, the atmosphere protects from any meteors entering from space.

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3 years ago

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Sergio039 [100]

Answer:

Option D

Step-by-step explanation:

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The correct option should be Option D.

Hope this helps you.

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2 years ago

Describe in detail how you would create a number line with the following points: 4, 1.25, the opposite of 3, and – (–2). Please

pochemuha

Well you would have to put 25 make in between 1,4, -2

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3 years ago