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3 years ago

PLEASE HELP ASAP!!! I WILL MARK AS BRAINLIEST!!

Mathematics

1 answer:

Sphinxa [80]3 years ago

4 0

Answer:

0.35

Step-by-step explanation:

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A box has two balls, one white and one red. We select one ball, put it back in the box, and select a second ball (sampling with

AleksAgata [21]

Answer:

P (T) = 1/4

P ( T | F ) = 1/2 = P(F)

The events are not independent.

Step-by-step explanation:

Let F the event of picking the white ball first

P (F)= 1/2 ( picking the white ball first)

Let T be the event of getting the white ball twice,

P (T) = P( getting white ball) * P( getting white ball)

=( 1/2)*(1/2)

= 1/4

Here P(T∩F) = P(T) because the probability of getting the white balls is the same as probability of getting the white ball first both the times.

P ( T | F ) = P (T∩F)/ P(F)

= (1/4)/ (1/2)

= (1/2)

= 1/2 = P(F)

For the events to be independent the conditional probability P ( T | F ) must be equal to P(T).

Hence the events are not independent.

4 0

3 years ago

Please help 15 points and brainliest!

Umnica [9.8K]

C because the proportions are equal and multiplied by 4/4

3 0

3 years ago

Solve |7h+ 1| = |3h - 7| for h.

Scorpion4ik [409]

Answer:

h=-41/2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which is the correct scientific notation for 724,000,000,000?

AVprozaik [17]

7.24•10^9

I believe this is correct

8 0

4 years ago

Travis is cutting strips of paper for a project. He needs strips that are 114 inches wide. He cut his first strip too wide. His

choli [55]

Travis cuts 125 whole 2/5 inches wide strip if the percent of error was 10% the actual length of the strips he needs to cut was 114 inches

<h3>What is the percentage?</h3>

It is defined as the ratio of two numbers expressed in the fraction of 100 parts. It is the measure to compare two data, the % sign is used to express the percentage.

We have:

The length Travis needs to cut = 114 inches

Percent of error = 10%

Let's assume he cuts x inches wide strip

So from the percent of error formula:

$\rm \dfrac{x-114}{114} = \dfrac{10}{100}$

$\rm x = \dfrac{114}{10}+114$

$\rm x = \dfrac{1254}{10}\Rightarrow \dfrac {627}{5}$ or

$\rm x = 125\dfrac{2}{5} \ inches$

Thus, Travis cuts 125 whole 2/5 inches wide strip if the percent of error was 10% the actual length of the strips he needs to cut was 114 inches

Learn more about the percentage here:

brainly.com/question/8011401

#SPJ1

3 0

3 years ago