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4 years ago

5

If A and B are independent events, then it must be true that P(BIA) = P(A).

1 answer:

Maksim231197 [3]4 years ago

5 0

Answer:

B. False

Step-by-step explanation:

For independent events, it must be true that ...

P(B|A) = P(B)

__

The probability of B does not depend on A. That is what makes them independent.

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What is 57,909,000 in scientific notation?

LenaWriter [7]

Hello,

Shall we begin?

<span>57,909,000
</span>
= 5.7909 * 10 ^7

Answers: 5.7909 * 10 ^7

5 0

3 years ago

If you divide the age of the first President Bush when he was inaugurated by 2 and add 14 years, you get the age of President Cl

konstantin123 [22]

Answer:

64

Step-by-step explanation:

32+14=46

8 0

3 years ago

Chelsea wants to determine the number of people in her school who read news reports on the Internet daily. She asks five people

elena-s [515]

Answer:

- increase the sample size

- choose students from different grade levels

- choose every fourth student in all language arts classes

Your welcome :]

3 0

3 years ago

Read 2 more answers

A sporting goods store sells right-handed and left-handed baseball gloves. In one month, 12 gloves were sold for a total revenue

stepladder [879]

Answer:

$9$ right-handed gloves and $3$ left-handed gloves were sold.

Step-by-step explanation:

Given: In one month, $12$ gloves were sold for a total revenue of $\$561$ .

right-handed gloves cost $\$45$ and left-handed gloves cost $\$52$ .

To find: How much of each type of gloves did they sell?

Solution: Let they sell $x$ right-handed gloves, and $y$ left-handed gloves.

Now, cost of each right-handed gloves $=\$45$

cost of each left-handed gloves $=\$52$

Total revenue $=\$561$

So, we get

$45x+52y=561\:\:\:...(i)$

Also, in a month $12$ gloves were sold.

So, we get

$x+y=12\:\:\:...(ii)$

Now, from $(ii)$ we get, $x=12-y$ .

Putting $x=12-y$ in equation $(i)$ , we get

$45(12-y)+52y=561$

$\implies 540-45y+52y=561$

$\implies7y=561-540$

$\implies7y=21$

$\implies y=\frac{21}{7}$

$\implies y=3$

Now, putting $y=3$ in equation $(ii)$ , we get

$x+3=12$

$\implies x=12-3$

$\implies x=9$

Hence, $9$ right-handed gloves and $3$ left-handed gloves were sold.

7 0

3 years ago

To show what he learned about the properties of volume for solids, liquids and gases, Viktor wrote the following summary.

Brrunno [24]

The wrong statement in Viktor's summary is When a round solid ball is placed in a box, the ball takes the shape of the box

The matter has three main states which are

Solid
Liquid
Gas

These states define the way we interact and manipulate materials. For instance:

Liquids take the shape of the container that contains them. For example water, milk, soda, among others.

Solids have a defined shape and do not deform when manipulated or placed inside another container. For example, a round solid ball.

Gases generally do not have colors and their atoms are not organized so they do not have a definite shape and take the shape of their container. For example, the air in a balloon.

According to the above, the error in Viktor's summary is in the first phase, and the correct statement is A. because solids does not take the shape of its container.

Learn more in:

7 0

3 years ago