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DaniilM [7]
3 years ago
10

What is the rational number equivalent to 3.12121212121212121212......

Mathematics
1 answer:
Lemur [1.5K]3 years ago
8 0
3.12 (repeating) = 3 12/99 reduces to 3 4/33 or 103/33

if there is one number repeating, like 0.222...u put that one number over 9...making it 2/9.
if there is 2 numbers repeating, like 0.1313...u put the two repeating numbers over 99...making it 13/99
if there are 3 numbers repeating, like 0.123123...u put ur three repeating numbers over 999...making it 123/999
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vladimir1956 [14]

Answer:

<h3>B. </h3>

Ok im not sure but hope this helped

7 0
2 years ago
What is the value of (y^-5/x^-3) for x = 2 and y = -4
Anastasy [175]
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5 0
3 years ago
Determine the similarity ratio for each pair of similar solids.
Lostsunrise [7]

Answer:

a) k =  \frac{7}{4}

b) {k}  =   \frac{13}{9}

Step-by-step explanation:

a) The similarity ratio is given by;

{k}^{2}  =  \frac{image \: size}{corresponding \: object \: size}

This implies that:

{k}^{2}  =  \frac{78.4}{25.6}

This simplifies to:

{k}^{2}  =  \frac{49}{16}

Take positive square root:

{k} =  \sqrt{ \frac{49}{16} }

k =  \frac{7}{4}

Therefore the similarity ratio is:

k =  \frac{7}{4}

b) This time the size are in volumes: We still use the same approach. But this time:

{k}^{3}  =  \frac{175.76}{58.32}

{k}^{3}  =  \frac{2197}{729}

Take cube root:

{k}  =   \sqrt[3]{\frac{2197}{729} }

{k}  =   \frac{13}{9}

The similarity ratio is

{k}  =  \frac{13}{9}

5 0
3 years ago
Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage ofthe total va
Vikentia [17]

Answer:

Step-by-step explanation:

The coefficient of determination = r^{2}  = 0.885^{2} = 0.7832

It means about 78% variation in waist size of males can be explained by their weight and about 23% can not be explained.

4 0
3 years ago
Multiplying positive and negative fractions how do you do it ​
SashulF [63]

Answer:

I GOTCHU BAEE

Step-by-step explanation:

its just like regular negative numbers

but with fractions

see:

-7/12 x 1/2 = -7/24

negative negates the negative

negative negates the positive

positive keeps the positive positive

6 0
3 years ago
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