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2 years ago

Provide 3 examples showing that an even number is not always the GCF (greatest common factor) of two numbers.

Mathematics

2 answers:

Gwar [14]2 years ago

7 0

3 examples is that you can't multiply 1

bonufazy [111]2 years ago

4 0

The best way to show examples is by simplifying fractions, which is the most common use of the greatest common fact (gcf).

$\frac{10}{25}$ gcf=5

$\frac{6}{9}$ gcf=3

$\frac{13}{26}$ gcf=13

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Step-by-step explanation:

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2 years ago

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Write a explaining how the concept of total war affe warring nations' economies.

Rom4ik [11]

Answer:

How did the concept of total war affect the warring nations economies? The concept of total war can both destroy and help a warring countries economy. The warring country will see an increase in jobs and work because of bring at war, but if they lose the war the economy is devastated.

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3 years ago

Suppose you have to cross a train track on your commute. The probability that you will have to wait for a train is 1/5, or .20.

Grace [21]

Answer:

So, the expected value of the time it takes to commute is 16 minutes.

Step-by-step explanation:

Let X is time it takes you to commute. We calculate E(X)?

We know that the probability that you will have to wait for a train is 1/5, or .20. If you don’t have to wait, the com mute takes 15 minutes, but if you have to wait, it takes 20 minutes.

The probability that you will have to wait for a train is :

$p_2=0.2\\$

The probability of not waiting for a train is:

$p_1=1-p_2=1-0.2=0.8$

So we get the following probability distribution:

$P(X)=\left \{ {{0.8, \, \, \, 15} \atop {0.2, \, \, \, 20}} \right.$

We calculate E(X):

$E(X)=x_1\cdot p_1+x_2\cdot p_2\\\\E(X)=15\cdot 0.8+ 20\cdot 0.2\\\\E(X)=12+4\\\\E(X)=16$

So, the expected value of the time it takes to commute is 16 minutes.

Expected value is not always the actual travel time, because it can sometimes take anywhere from 15 to 20 minutes.

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3 years ago

How many hours does antoine sleep in a day

guajiro [1.7K]

Antoine sleep 8 hours in a day

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2 years ago

SCATTER PLOT QUESTION PLEASE HELP A:3 B:3.1 C:3.5 D:4

Bond [772]

For this, just add up all the points for the trucks.
2+2+3+3+3+4+5= 22

Then divide by the amount of numbers you added to get 22.

22/7 = 3.14

Round this to the nearest tenth by looking at the number beside. If it is higher than 5, then add one to the tenth place, but if it is not keep it the same.

The final answer will be B.

4 0

2 years ago