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frutty [35]
2 years ago
12

What is a rational number can you please put it in not plagiarized words? also give me a example of one and how they work thank

you if you were able to help me out btw this was for a discussion based assesment
Mathematics
1 answer:
34kurt2 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

A rational number can be expressed in the form

\frac{a}{b} ← where a and b are integers

An example is

\frac{2}{3}

- 5 can be expressed as \frac{-5}{1} and is therefore rational

Numbers which are not rational are irrational

π and \sqrt{2} are examples of irrational numbers

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Solve each prportion. (2/y-4)=(y+3/4)
vampirchik [111]

Answer:

y = 5, -4

Step-by-step explanation:

To solve proportions you cross-multiply.

\frac{2}{y-4} =\frac{y+3}{4} \rightarrow 2\times4 = (y-4)\times(y+3) \rightarrow 8=y^2-y-12

Now that we have 8 = y^2 - y - 12, we must make the entire trinomial equal to 0 by subtracting 8 from both sides.

y^2 - y - 20 = 0

Factor the trinomial.

(y - 5)(y + 4) = 0

Make both factors equal to 0 to solve for both values of y.

  • y - 5 = 0 --> y = 5
  • y + 4 = 0 --> y = -4

y = 5, -4

4 0
3 years ago
Plz help photo attached
lyudmila [28]

12,0

0,10

Step-by-step explanation:

4 0
3 years ago
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Not sure how to do these. i need help with 13! needing it to be reduced just like y should be 8
Delicious77 [7]

Answer:

I'm not sure 710

Step-by-step explanation:

I'm not sure

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3 years ago
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Imagine the fire department had to evacuate the 25th floor of an office building. For firefighters to safely reach people at thi
joja [24]

Answer:

Check Explanation

Step-by-step explanation:

Some information required to answer this question is missing, but on a general basis, here goes the carefully researched response.

Majority of popular truck ladders are about 75 to 105 feet long. There are special truck ladders that reach up to 125 feet.

The length of a truck ladder is naturally limited by weight. The weight has to not be too much so that the truck can still move at a good enough speed on the roads. The weight of these ladders are primarily dependent on the strength of the metal used to make them.

At the top of these ladders, on a windy day, eind interference can cause the ladder to move back and forth all over the place, rhereby endamgerimg lives further and using a light material because we want the truck to still be able to move, will not work because light ladders especially, are easily carried by wind.

The 105-foot aerial ladder can reach 7 to 8 floors depending on the height of the floors.

The 25th floor of an office building can be accessed using a ladder that is about 225 ft long and that simply, is not feasible at all to manufacture this ladder considering the required weight and how too far away in the air this ladder would be, there would be little or no control over this.

Hence, a more realistic solution would be an helicopter that is steadied to slowly get people out of that floor.

Also, if the elevators or stairs are still accessible, these are better alternatives than a 225 ft long ladder aiming to reach the 25th floor.

Hope this Helps!!!

4 0
3 years ago
Cross multiply to determine whether the fractions are equivalent.
cricket20 [7]

Answer:

Solution

5/6=7/5

5×5=7×6

25=42

Your answer is 25=42.

5 0
2 years ago
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