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serious [3.7K]
3 years ago
13

Classify each number below as a rational number or an irrational number.

Mathematics
1 answer:
FrozenT [24]3 years ago
6 0

Answer:

87.84(repeating) irrational

-(sqrt[11]) irrational

-(sqrt[36]) rational

72.28 rational

11pi irrational

Step-by-step explanation:

If you can ever see the whole number, it is rational. For example, 5.194291497129471290410247912094142 is rational, although not very pleasant to look at. Repeating decimals, square roots of prime numbers, and special numbers (like pi in your question) are irrational because they go on infinitely.

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I hope this is the answer :)
45.67=r

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Three friends owe $18 to another friend for gas. If they plan to split the cost evenly, which of the following expressions could
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The first one.. 18/3 is the answer
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The dot plot shows the number of magazines sold determine the median of the date set
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To find median you set up the number least to greasiest and then cross each one out one side at a time until you get to the middle
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4 years ago
Which of the following ratios is equivalent to 49:35?
Arte-miy333 [17]

The best way to find it is to reduce each ratio you work with to its
lowest terms,and see which ones are equal. To reduce a ratio to its
lowest terms, divide each number by their greatest common factor.

First, the one that you're trying to match:  <u>49:35</u> .
The greatest common factor of 49 and 35 is 7 .
Divide each number by 7 . . .  <em>7:5</em> . . . <u>that's</u> what you have to match.

<u>7:4</u>
Their greatest common factor is ' 1 '.
No help at all, and this one is not it.

<u>14:25</u>
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No help at all, and this one is not it.

<u>21:15</u>
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That's it !
8 0
3 years ago
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Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles. A = 56°, a = 12, b = 14
Eva8 [605]
We know that
case 1)
Applying the law of sines
a/Sin A=b/Sin B
A=56°
a=12
b=14
so
a*Sin B=b*Sin A----> Sin B=b*Sin A/a---> Sin B=14*Sin 56°/12
Sin B=0.9672
B=arc sin (0.9672)------> B=75.29°-----> B=75.3°

find angle C
A+B+C=180°-----> C=180-(A+B)----> C=180-(56+75.3)----> C=48.7°

find c
a/Sin A=c/Sin C----> c=a*Sin C/Sin A----> c=12*Sin 48.7°/Sin 56°)
c=10.87-----> c=10.9

the answer Part 1)
the dimensions of the triangle N 1
are
a=12  A=56°
b=14  B=75.3°
c=10.9  C=48.7°

case 2) 
A=56°
a=12
b=14
B=180-75.3----> B=104.7°

find angle C
A+B+C=180°-----> C=180-(A+B)----> C=180-(56+104.7)----> C=19.3°

find c
a/Sin A=c/Sin C----> c=a*Sin C/Sin A----> c=12*Sin 19.3°/Sin 56°)
c=4.78-----> c=4.8

the answer Part 2)
the dimensions of the triangle N 2
are
a=12  A=56°
b=14  B=104.7°
c=4.8    C=19.3°
3 0
3 years ago
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