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2 years ago

A drawer contains loose socks. there are 2 blue and 4 black socks in the drawers. what is the probability that you choose a sock

without looking, then choose a second sock (keeping the first in your hand) without looking and end up with a pair of black socks?

Mathematics

1 answer:

otez555 [7]2 years ago

4 0

$|\Omega|=6\cdot5=30\\|A|=4\cdot3=13\\\\P(A)=\dfrac{12}{30}=\dfrac{2}{5}=40\%$

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Leona [35]

Answer:

The absolute error is 4 ft and percent error of Tony's estimate is 9.8%.

Step-by-step explanation:

Given:

Tony estimated the height of his office building to be 45ft. The actual height of his office building is 41ft.

Now, to find the absolute error and the percent error of Tony's estimate.

The height of his office building = 45ft.

The actual height of his office building = 41 ft.

So, to get the absolute error:

The height of his office building - the actual height of his office building

$45\ ft-41\ ft\\=4\ ft.$

The absolute error = 4 ft.

Now, to get the percent error of Tony's estimate:

$\frac{4}{41} \times 100$

$=0.0975\times 100$

$=9.75\%.$

Percent error of Tony's estimate rounding to nearest tenth = 9.8%.

Therefore, the absolute error is 4 ft and percent error of Tony's estimate is 9.8%.

5 0

3 years ago

4x + x - 3-9 + 4x = 6 ??

Nookie1986 [14]

Answer:

$x=2$

Step-by-step explanation:

-------------------------

Given:

$4x+x-3-9+4x=6$

---------->>>>

Combine like terms.

$9x-12=6$

---------->>>>

Add 12 to both sides.

$9x=18$

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Divide both sides by 9.

$x=2$

-------------------------

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3 years ago

A box contains

Nezavi [6.7K]

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Answer:

Step-by-step explanation:

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