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mestny [16]
4 years ago
13

Which one is a rational number?

Mathematics
1 answer:
SSSSS [86.1K]4 years ago
8 0

Answer:

2

Step-by-step explanation:

A rational number is a number that can be represented as a fraction.

Numbers \sqrt{8},\ 0.303003000...,\ \pi are irrational numbers (they cannot be represented as a fraction).

Number 2 is a rational number (this is the natural number and every natural number is a rational number)

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una familia ha consumido en un dia de verano: dos botellas de litro y medio de agua, 5 botellas de 1/4 de litro de jjugo de appl
aleksandr82 [10.1K]

Answer:

La familia ha bebido en un día de verano 5\,\frac{1}{4} litros.

Step-by-step explanation:

Podemos evidenciar que es posible obtener el volumen total de los citados líquidos al sumar el volumen de cada uno. El volumen de cada bebida es igual al producto de su capacidad multiplicada por el número de botellas. Es decir:

V_{total} = V_{agua} + V_{jugo} + V_{limonada}

Donde todos los volúmenes se miden en litros.

V_{total} = (2\,botellas)\times \left(\frac{3}{2} \,\frac{L}{botella} \right)+(5\,botellas)\times \left(\frac{1}{4}\,\frac{L}{botella}  \right) + (4\,botellas)\times \left(\frac{1}{4}\,\frac{L}{botella}  \right)

V_{total} = (2\,botellas)\times \left(\frac{6}{4} \,\frac{L}{botella} \right)+(5\,botellas)\times \left(\frac{1}{4}\,\frac{L}{botella}  \right) + (4\,botellas)\times \left(\frac{1}{4}\,\frac{L}{botella}  \right)

V_{total} = \frac{12}{4}\,L + \frac{5}{4} \,L + \frac{4}{4} \,L

V_{total} = \frac{21}{4}\,L

V_{total} = \frac{20}{4}\,L + \frac{1}{4}\,L

V_{total} = 5\,\frac{1}{4}\,L

La familia ha bebido en un día de verano 5\,\frac{1}{4} litros.

3 0
3 years ago
How many teaspoons are in 1/4 cups
mojhsa [17]

Answer:

12 U.S teaspoons are in 1/4 cups.

The Formula is to multiply the volume value by 48.

So Since a 1/4 us cup=0.25 we can multiply this by 48.

0.25*48=12

So our awnser is 12 teaspoons

5 0
3 years ago
Which best describes this quadrilateral?
Tomtit [17]

Answer:

fourth option... ...dmdmdjxn

4 0
3 years ago
Read 2 more answers
Look at this graph:
Radda [10]
Use the method rise over run (rise/run) that would get you 30/20 and that would equal to 1.5
8 0
3 years ago
Read 2 more answers
If one zeroes of the polynomial f(x) = 4x² - 8kx + 8x -9 is negative of other,
larisa86 [58]

Answer:

-1 and -2

Step-by-step explanation:

f(x) = 4x² − 8kx + 8x −9

f(x) = 4x² − 8(k−1)x − 9

If one root of f(x) is the opposite of the other, then f(x) must be a difference of squares, which means -8(k−1) = 0.

-8(k−1) = 0

k = 1

Therefore, the other polynomial is:

x² + 3x + 2

(x + 1) (x + 2)

The zeros are -1 and -2.

3 0
3 years ago
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