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IrinaVladis [17]
3 years ago
11

Is 43/10 an irrational number or rational number ?

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

Rational

Step-by-step explanation:

The definition of rational is that it can be written as a fraction where the top and bottom are integers (the bottom integer not 0).

--

43/10 is written in that form since 43 and 10 are both integers.

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Find the standard deviation of the data, 12, 19, 9.
jek_recluse [69]

Answer:

4.19

Step-by-step explanation:

Find the mean:

\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}

Find the standard deviation:

\text{Standard Deviation}=\sqrt{\frac{(12-\frac{40}{3})^2+(19-\frac{40}{3})^2+(9-\frac{40}{3})^2}{3}}=\sqrt{\frac{158}{9}}\approx4.19

4 0
2 years ago
|x-3|+4=12 show all steps <br>Please
SOVA2 [1]

Answer:

|x-3|+4 = 12

|x-3| = 12-4

|x-3| = 8

now solve for both positive and negative values

x - 3 = 8      |   x - 3 = -8

x = 8 + 3     |   x = - 8 + 3

x = 11          |    x = -5

solution set : { 11, -5 }

Step-by-step explanation:


3 0
3 years ago
What is the contrapositive of the conditional statement? If two variables are directly proportional, then their graph is a linea
Triss [41]

Answer:

D. "If the graph of two variables is not a linear function, then the two variables are not directly proportional"

Step-by-step explanation:

The contrapositive of a statement is basically you changing the conditional part of the statement with its result and then finding the negative of both. This is called Contraposition.

So, for the statement given:

"If two variables are directly proportional, then their graph is a linear function."

The contrapositive will be:

"If the graph of two variables is not a linear function, then the two variables are not directly proportional"

7 0
3 years ago
Factor 1.2 out of <br><br> 1.2x - 7.2
tatyana61 [14]

Answer:

6/5 x (x-6)

Step-by-step explanation:

convert the decimal into a fraction

1.2x -7.2

6/5x - 36/5

factor 6/5 from the expression

6/5x (x-6)

5 0
2 years ago
2.1 km =
likoan [24]
2,100,000 Centimeters
3 0
2 years ago
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