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jeka57 [31]
3 years ago
5

-7 pertenece a números racionales y el por qué

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0
Cada número que puede expresarse como una razón de dos enteros, cuyo denominador es distinto de cero, se llama un número racional.

espero que esto ayude :)
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|x| = x <br><br>Always <br><br>Sometimes<br><br>Never​
Mnenie [13.5K]

Answer:

Sometimes

Step-by-step explanation:

Lets see

Let x be a positive number

x=3

|3| = 3

True

Let x =0

|0| = 0

True

Let x be a negative number

x=-3

|-3| =-3

3 = -3

False

So this is sometimes true

7 0
3 years ago
Rewrite 4.68 x 10^12 in decimal notation.
borishaifa [10]

Answer:

4680,000,000,000

8 0
2 years ago
Let A={1,3,6,7} B={1,2,6,7} and C={3,6,7,9} <br>Find (AΠB)ΠC​
Gemiola [76]

Answer:

{(1,6,7)(6,7)

step by step

A intersect B is equally to (1,6,7) intersect B (6,7)

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2 years ago
A farm has chickens and cows. All the cows have 4 legs and all the chickens have 2 legs.
cupoosta [38]
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8 0
3 years ago
Read 2 more answers
Oscar charges $25 for the first hour of tutoring and $15 for each additional hour of fraction of an hour counting as a whole hou
makkiz [27]

Answer:

Latoya will charge $10 more to tutor for 5.5 hours

Step-by-step explanation:

We shall look at the total charges of both tutors individually.

Oscar charges $25 for the first hour of tutoring and $15 for each additional hour of fraction of an hour counting as a whole hour.

This means that for the first hour, Oscar charges $25.

For every subsequent hour, regardless of whether the student was tutored for the full hour or only partial, Oscar still charges $15 for the particular hour. To clarify, here is an example.

If a student is tutored for 2 hours, the cost for Oscar's tutoring is $25 (first hour) + $15 (second hour) = $40. However, if the student is still tutored for 1.5 hours, the cost for Oscar's tutoring is still $25 (first hour) + $15 (second hour) = $40. This is because Oscar counts the partial minutes as a full hour in tutoring costs.

For 5.5 hours, the cost of Oscar's tutoring is

$25 (first hour) + $15*4 (2nd to 5th hours) + $15 (the last half an hour) = $100.

Now, we shall look at Latoya's tutoring cost.

f(x) =

30x,

0  \leqslant x \leqslant 3

20x,

3 < x \leqslant 6

10x,

x > 6

The tutoring cost depends on x, the number of tutoring hours. In this case, x is 5.5. The cost for 5.5 hour depends on the formula 20x since 5.5 is more than 3 but less than 6.

Hence, the tutoring cost for Latoya is $20*5.5 = $110.

In this case, Latoya charges $110-$100=$10 more to tutor for 5.5 hours.

4 0
3 years ago
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