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3 years ago

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Let A and B be two events. The probability that event B occurs is 0.72. The probability that events B and A both occur is 0.24.

2 answers:

Sedaia [141]3 years ago

6 0

C is the answer to this question. I hope this helps.

myrzilka [38]3 years ago

6 0

Answer:C

Step-by-step explanation:

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How many reasons must your thesis contain and which reason is first

finlep [7]

<span><span>The more sources the better
Every researcher aims to have a standardized and uniform study when a study will be replicated or repeated for various reasons.

</span>The number of accounts and evidential support of your thesis must be consistent and be sufficient and succinct to the topic of study. These reasons and evidential support should claim proximate with the pronounced experimentation and variables which will be studied. In sense, the more accounts and sources the better is your study, the greater it will stand out and present itself. This is important for every thesis paper or dissertation since these accounts provides and explicitly discusses the studies that have been undertaken before which can greatly influence the current study's credibility and reliability. </span>

5 0

3 years ago

the table shows the heights of 40 students in a class calculate an estimate for the mean height of the students

nexus9112 [7]

Answer:

For mean

To show the mean of height measures for 40 students, you need to write-out exactly 40 heights into a calculator and add them up.

Then divide that total number by 40.

Step-by-step explanation:

Eg for 4 students

5 , 5.1, 5.2, 5.7 = 21ft

21/4 = 5.25ft.

Apply the same method but use 40 measures in addition for calulator or long addition. Then divide by 40.

5 0

4 years ago

Drive to work in 45 min., bus to work takes 1 hr 15 min. If the average rate on the bus is 16 mph slower than his driving rate,

stich3 [128]

Answer:

30 miles

Step-by-step explanation:

Given: Drive to work in 45 min.

Bus would take to travel= 1 hr 15 min

Average rate on the bus is 16 mph slower than his driving rate.

Lets assume the average driving rate be "x" mph.

∴ Average rate of bus= $(x-16)\ mph$

Now converting unit of time taken to travel to work.

Remember; 1 hours= 60 minutes.

Time taken for drive to work= $\frac{45\ minutes}{60\ minutes} = 0.75\ hour$

Time taken in bus to work= 1 hour and 15 minutes= $60\ minutes+ 15\ minutes= 75\ minutes$

∴ Time taken in bus to work in hours= $\frac{75\ minutes}{60\ minutes}= 1.25\ hours$

Considering the distance remain constant to travel for work.

Next, forming an equation to find the value of x.

As we know, $distance= speed\times time$

⇒ $x\times 0.75= (x-16)\times 1.25$

Using distributive property of multiplication.

⇒ $0.75x= 1.25x-20$

Adding both side by 20

⇒ $0.75x+20= 1.25x$

Subtracting both side by 0.75x

⇒ $20= 0.5x$

Dividing both side by 0.5

⇒ $x= \frac{20}{0.5}$

∴ $x= 40\ mph$

Hence the average rate for drive to work is 40mph.

Now, subtitiuting the value of x to find the distance travelled to work.

Distance travelled= $40\times 0.75= 30\ miles$

Hence, distance travelled to work is 30 miles.

6 0

4 years ago

Please help with this question (I will mark brainliest) Thank u >u<

maks197457 [2]

Answer:

hi, I believe it would be C. P=368(0.07)^x

Step-by-step explanation:

hope it helps!

7 0

2 years ago

Wick of the following is not simplst form 5/11,4/9,8/15,2/14

iren [92.7K]

Answer:

2/14

Step-by-step explanation:

Can divide both the numerator and denominator by two to reduce down to 1/7.

6 0

3 years ago

Read 2 more answers