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3 years ago

PLZ HELP WILL MARK BRAINLIEST 50 POINTS REAL NUMBER SYSTEM

Mathematics

2 answers:

Leokris [45]3 years ago

8 0

Answer:

B and J switch because J is a repeating number and repeating numbers are irrational because they don't have a definte end. Other than that, you are good!

Step-by-step explanation:

Svetlanka [38]3 years ago

3 0

Answer:

B and J would be the correct answer

Step-by-step explanation:

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2+5 x 2

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Answer:

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3 years ago

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At a military function, three cannons are fired at intervals of 12

Morgarella [4.7K]

Answer:

144 seconds

Step-by-step explanation:

To do solve this question, we must find the LCM (least common multiple) of 12, 16, and 18.

Let's start by prime factorizing (finding the prime factors) all the numbers.

$12\rightarrow3*4\rightarrow2*2*3$

$16\rightarrow4*4\rightarrow2*2*2*2$

$18\rightarrow2*9\rightarrow2*3*3$

Now, we must find the greatest quantity of each [prime] number and multiply them together to obtain the least common multiple.

Upon further evaluation of the [prime] factors, we can see that we need four 2s and two 3s. Therefore...

$2*2*2*2*3*3=2^4*3^2=16*9=144$

They will be fired together again after 144 seconds.

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3 years ago

A football player runs to the north at a speed of 8 m/s. He catches a ball and keeps running. What type of collision was this?

Artist 52 [7]

A. It was not a collision

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3 years ago

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Will ran 120 minutes in the past two days. He ran 20 more minutes the second day than the first day. how many minutes did he run

valentinak56 [21]

Here is the equation: x+(x+20) = 120

Since you can't combine anything yet, its x+x+20=120

You need to get x by itself

Minus 20 from both sides

Its x+x=100 now

Combine the x's which is now 2x

Now divide 100 by 2 which is 50

x=50
---------------

Lets check:

50+(50+20)=120

Now combine the numbers in the parentheses

Its now 50+70=120

50+70=120 and 70-50=20

As you can see, he ran 50 minutes the first day and 70 minutes the second day

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3 years ago

What is the solution to the equation below? Round your answer to two

MrRa [10]

Answer:

C. x = 3.71

Step-by-step explanation:

4 + 9(ln x) = 15.8

Subtract 4 from both sides.

9(ln x) = 11.8

Divide both sides by 9.

ln x = 11.8/9

x = e^(11.8/9)

x = 3.71

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3 years ago

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