A factory process requires 3 steps to finish a product. The steps each have a mean completion time of

Mathematics

1 answer:

MrMuchimi3 years ago

7 0

Answer:

1975625785698158

Step-by-step explanation:

17seconds

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A fair coin is tossed 20 times. The probability of getting the three or more heads in a row is 0.7870 and the probability of get

adelina 88 [10]

Answer:

The value is $P( H \ n \ T ) = 0.6049$

Step-by-step explanation:

From the question we are told that

The number of times is n = 20

The probability of getting three or more heads in a row is $P(H) = 0.7870$

The probability of getting three or more heads in a row or three or more tails in a row is $P(H \ u \ T ) = 0.9791$

Generally given that it is a fair coin , then $P(H) = P(T) = 0.7870$

Here P(T) is probability of getting three or more tails in a row

Generally the probability of getting three or more heads in a row and three or more tails in a row is mathematically represented as

$P( H \ n \ T ) = P(H) + P(T) - P( H \ u \ T )$

=> $P( H \ n \ T ) = 0.7870 + 0.7870 - 0.9791$

=> $P( H \ n \ T ) = 0.6049$

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2 years ago

If a rock falls from a height of 40 meters on Earth, the height H (in meters) after x seconds is approximately

Julli [10]

Once the rock hits the ground, we know that its height will be equal to 0m
because of this, we can replace H(x) with 0
$40 - 4.9 {x}^{2} = 0$
now all we have to do is get x by itself
so..
$4.9 {x}^{2} = 40$
then
${x}^{2} = 40 \div 4.9$
${x}^{2} = 8.1632...$
now take the square root of each side
$x = 2.857...$
2.857 seconds (rounded to the third decimal)

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2 years ago

over a four year period a tree grew 2.62 feet. if the tree grows at a consistent rate, how many feet did the tree grow each year

ivolga24 [154]

If you Do 2.62➗4 you will get the answer

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3 years ago

Read 2 more answers

A. 22.1 ft^2<br> B. 20 ft^2<br> C. 13.5 ft^2<br> D. 16.8 ft^2

USPshnik [31]

The answer would be D, 16.8 ft.^2
4 x 2.5 + 2^2 x 3.14 x .5= 16.8

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